RU2828076C1 - Cable penetration with mineral wool filler impregnated with fire-retardant coating for several cables in sleeves - Google Patents

Abstract

FIELD: cable penetrations.

SUBSTANCE: cable penetration is a mineral wool filler, with which, at least to the embedding depth, is filled at least two sleeves placed in a hole with a depth of at least 150 mm in a building structure, each of which is longer than the depth of the hole, wherein the filler is pre-impregnated with a fire-retardant coating; wherein the impregnated mineral wool filler is placed over the length of the section of the refractory fibre on the sleeve between the sleeves; wherein each sleeve is also filled with a fire-retardant sealant at least to a depth of embedding; fire-retardant coating is applied at least over the length of the section of application of the fire-retardant coating on the cable outside each sleeve.

EFFECT: increasing the fire resistance of cable penetration.

1 cl, 6 dwg, 8 tbl

Description

[0001] FIELD OF TECHNOLOGY

[0002] The proposed technical solution relates to cable penetrations and can be used for fire-resistant transverse sealing of cables when they pass through cable structures, walls and ceilings at nuclear power plants, thermal power plants and other industrial facilities.

[0003] LEVEL OF TECHNOLOGY

[0004] A cable penetration described in patent RU2717082, published on 18.03.2020 (D1), is known. The cable penetration known from D1 is a mineral wool filler, which at least partially fills an opening with a depth of 150 to 250 mm in a building structure, wherein the filler has a density of at least 35 kg/ ^m3 and is coated on the outside with a fire-retardant coating, also applied to at least one cable on each side outside the opening, wherein the filler in the places where the cable is adjacent inside the opening is coated with a fire-resistant sealant, wherein the fire resistance of the coating, depending on the depth of the opening, the thickness of the coating and the length of the coating on the cable, corresponds to a certain range of parameters.

[0005] In some situations, the solution known from D1 does not provide the required fire resistance limits. The solution known from D1 can be adopted as the closest analogue.

[0006] DISCLOSURE OF THE ESSENCE OF THE TECHNICAL SOLUTION

[0007] The technical problem solved by the claimed technical solution is the creation of a cable penetration that does not have the disadvantages of its analogue and thus has increased fire resistance. Another technical problem solved by the claimed invention is the expansion of the arsenal of technical means - cable penetrations.

[0008] The technical result achieved by implementing the declared technical solution, in addition to fulfilling its purpose, is the elimination of the shortcomings of the closest analogue and thus an increase in the fire resistance of the cable penetration.

[0009] The technical result is achieved due to the fact that a cable penetration is provided, which is a mineral wool filler, which is filled, at least to the embedding depth, into at least two sleeves placed in an opening with a depth of at least 150 mm in a building structure, each of which is longer than the depth of the opening, wherein the filler is pre-impregnated with a fire-retardant coating; wherein the impregnated mineral wool filler is placed along the length of the section of placement of the fire-resistant fiber on the sleeve between the sleeves; wherein: each sleeve is also filled, at least to the embedding depth, with a fire-retardant sealant; the fire-retardant coating is applied, at least to: the length of the section of application of the fire-retardant coating on the cable outside each sleeve; wherein at least the thickness of the fire-protective coating layer on the cable, the length of the section of application of the fire-protective coating on the cable, the embedment depth, the length of the section of placement of the fire-resistant fiber on the cable are selected depending on the required fire resistance limit in accordance with the table:

Fire resistance limit Thickness of the fire-protective coating layer on the cable, not less than, mm Length of the area where the fire-protective coating is applied to the cable, not less than, mm Embedding depth, not less than, mm Length of the area where the refractory fiber is placed on the sleeve EI 45 or EI 60 2.0 or 2.1 200 or 210 150 or 160 Corresponds to the length of the sleeve outside the hole outside the hole EI 90 150 or 160 EI 120 2.0 or 2.2 200 or 210 EI 150 250 or 260

[0010] BRIEF DESCRIPTION OF DRAWINGS

[0011] Illustrative embodiments of the technical solution are described below in detail with reference to the accompanying drawing, which is incorporated herein by reference, and in which:

[0012] Fig. 1 shows, by way of example and not limitation, an exemplary diagram of a cable penetration with a sleeve that does not protrude beyond the opening.

[0013] Fig. 2 shows, by way of example and not limitation, an exemplary diagram of a cable penetration with several sleeves not protruding beyond the opening.

[0014] Fig. 3 shows, by way of example and not limitation, an exemplary diagram of a cable penetration with a sleeve protruding beyond the opening.

[0015] Fig. 4 shows, by way of example and not limitation, an exemplary diagram of a cable penetration with several sleeves protruding beyond the opening.

[0016] Fig. 5 shows, by way of example but not limitation, an exemplary diagram of a cable penetration without mineral wool filler with a sleeve protruding beyond the opening.

[0017] Fig. 6 shows, by way of example but not limitation, an exemplary diagram of a cable penetration without mineral wool filler with several sleeves protruding beyond the opening.

[0018] IMPLEMENTATION OF THE TECHNICAL SOLUTION

[0019] The following are embodiments of the present technical solution, disclosing examples of its implementation in particular implementations. However, the description itself is not intended to limit the scope of rights granted by this patent. Rather, it should be assumed that the claimed technical solution can also be implemented in other ways in such a way that it will include different elements and conditions or combinations of elements and conditions similar to the elements and conditions described in this document, in combination with other existing and future technologies.

[0020] Preferably, without limitation, the cable may be either a single cable, i.e. a single strand of a cable line, or a bundle of cables, i.e. several strands of a cable line connected to each other.

[0021] Preferably, without being limited to, the building structure may be a supporting structure, or a self-supporting structure, or an enclosing structure, or a ceiling, such as a concrete wall, a brick wall, a horizontal partition (platform), which form part of a structure, preferably a building, another structure of a thermal power plant, a nuclear power plant, in which an opening may be made through which a cable may be passed directly or using a sleeve, for example, without being limited to, from one room to another room.

[0022] Preferably, without being limited to, the opening may be an opening or other through-hole of various shapes and configurations, for example, without being limited to, a circular opening of constant cross-section, a circular opening of variable cross-section, a rectangular opening of constant cross-section, a rectangular opening of variable cross-section, and the like openings, including other shapes and cross-sections, in a building structure that can be made in a building structure for passing a cable through them, as well as for placing a sleeve therein for passing a cable through the sleeve.

[0023] Preferably, but not limited to, the sleeve may be a pipe of any suitable cross-section and material, in particular, but not limited to, a metal pipe of circular or rectangular cross-section, placed in the opening to a depth exceeding or not exceeding the depth of the opening, preventing the cable from coming into contact with the inner walls of the opening.

[0024] Preferably, without being limited to, the refractory fiber can be a molded and/or woven and/or stitched heat insulator, including needle-punched, preferably rolled, such as, for example, without being limited to, mullite-siliceous glass fiber refractory heat-insulating materials and products, such as, for example, mullite-siliceous felt, corresponding in its characteristics to GOST 23619-79, a blanket of alumina (aluminum oxide), such as, for example, without being limited to, the “TempMax” blanket (Luyang Energy-saving Materials Co. Ltd, China), the “Luyangwool blanket” ceramic blanket (Luyang Energy-saving Materials Co. Ltd, China), the “Cerablanket” ceramic refractory fiber (Russia), the “Supersilica” needle-punched silica material (ZAO RLB SILIKA, Russia), needle-punched and heat-bonded non-woven material (EN TECH SRL, Italy), and similar materials used, as a rule, as heat-insulating, compensating materials for blast furnace air heaters, thermal insulation of thermal, heating, vertical-sectional, cylindrical and other types of furnaces, covers of troughs for cast iron and slag, heating wells, insulation of the head of ingots and castings made of cast iron and steel, and the like, but not as such materials for cable lines and cable penetrations, while it is preferable, without limitation, mainly to proceed from the fact that, in addition to providing heat-insulating properties, such refractory fiber does not interfere with the adhesion of the fire-protective coating applied to it, fire-protective sealant, that is, does not interfere with gluing using a fire-protective coating and / or fire-protective sealant of the refractory fiber with other parts of the cable penetration and/or with the surfaces of the building structure, wherein preferably, without being limited to, the refractory fiber has a density of at least 96 kg/ ^m3 , more preferably, without being limited to, the refractory fiber has a density of at least 128 kg/ ^m3 , wherein preferably, without being limited to, the refractory fiber has a thermal conductivity coefficient at a temperature of 1000 degrees Celsius of no more than 0.300 W/m*K, more preferably, without being limited to, the refractory fiber has a thermal conductivity coefficient at a temperature of 1000 degrees Celsius of no more than 0.270 W/m*K, wherein preferably, without being limited to, the refractory fiber is refractory ceramic glass fiber "Ceraterm Blanket" (AO Sukholozhsky Refractory Plant, Russia).

[0025] Preferably, without being limited to, the fire-retardant coating may be a silicone fire-retardant coating, for example, without being limited to, made on the basis of low-molecular silicone rubber, preferably, without being limited to, providing parameters of non-propagation of combustion according to GOST R 53311-2009, while preferably, without being limited to, it should be assumed that such a fire-retardant coating has not only suitable parameters for non-propagation of combustion, but also suitable adhesion to the fire-resistant fiber, cable surfaces, building structure, sleeve, mineral wool filler, mineral wool slab, mounting perforated tape, fasteners, binding wire, that is, including, it provides the possibility of gluing parts of the cable penetration, while preferably, without being limited to, the fire-retardant coating is the fire-retardant coating "INZAFLAME HPS-KS" (OOO "ATOMINOPROM", Russia).

[0026] Preferably, but not limited to, the fire-retardant sealant may be a silicone fire-resistant neutral sealant suitable for sealing joints of prefabricated building structures, sealing, seam sealing, waterproofing, sealing cable products, bonding dissimilar materials, fire-resistant sealing, while preferably, but not limited to, it should be assumed that such a fire-retardant sealant has not only suitable parameters for non-propagation of combustion, but also suitable adhesion to fire-resistant fiber, cable surfaces, building structures, sleeves, mineral wool filler, mineral wool slab, perforated mounting tape, fasteners, binding wire, that is, including, it provides the possibility of gluing parts of cable penetrations, while preferably, but not limited to, the fire-retardant sealant is the fire-retardant sealant "INZAGERM HPS" (OOO "ATOMINOPROM", Russia).

[0027] Preferably, but not limited to, the mineral wool filler may be any suitable known or future-created mineral wool filler, including, but not limited to, basalt mineral wool, preferably, but not limited to, having a density of no more than 70 kg/ ^m3 , preferably, but not limited to, having a density in the range of 35-70 kg/ ^m3 , wherein, preferably, but not limited to, it should mainly be assumed that, in addition to providing thermal insulation properties, such a mineral wool filler does not interfere with the adhesion of a fire-protective coating or fire-protective sealant applied thereto, i.e. does not interfere with the bonding using a fire-protective coating and/or fire-protective sealant of the mineral wool filler to other parts of the cable penetration and/or to the surfaces of the building structure, and, preferably, but not limited to, does not interfere with at least partial impregnation of the mineral wool filler fire-protective coating, while, without being limited to, it is more preferable that the mineral wool filler has such a density, and, accordingly, such absorbency, that after holding for no more than 10 minutes in a container with a fire-protective coating, an almost homogeneous mass is achieved, the consistency of which corresponds to or is close to the consistency of the putty mass.

[0028] Preferably, but not limited to, the mineral wool slab may be any suitable known or future mineral wool slab, preferably, but not limited to, having a density of at least 100 kg/m ³ , wherein, preferably, but not limited to, it should mainly be assumed that, in addition to providing thermal insulation properties, such a mineral wool slab does not interfere with the adhesion of the fire-protective coating or fire-protective sealant applied thereto, i.e. does not interfere with gluing, using a fire-protective coating and/or fire-protective sealant, of the mineral wool slab to other parts of the cable penetration and/or to the surfaces of the building structure, wherein, preferably, but not limited to, the fragment of the mineral wool slab is a corresponding fragment of the required cross-section cut out of the mineral wool slab using known suitable methods, preferably, but not limited to, coinciding with the cross-section of the sleeve into which such fragment is glued, wherein, preferably, not being limited, the length of the fragment is determined by the corresponding embedment depth.

[0029] Preferably, without limitation, the fire resistance limit means the ultimate state of the cable penetration after a certain period of time during which the cable penetration was subjected to a destructive thermal effect, whereby ensuring the corresponding fire resistance limit means that the cable penetration corresponds to a state in which, after a certain period of time, no loss of integrity occurs according to GOST 53307-2009, and no loss of thermal insulation capacity occurs according to GOST 53307-2009, whereby it should be obvious to a specialist in the given technical field, possessing ordinary knowledge, for whom this technical solution is intended, that when indicating the fire resistance limit, the generally accepted wording corresponding to GOST 53307-2009 is used, in which "E" means "loss of integrity", "I" means "loss of thermal insulation capacity", the number "60" means "60 minutes", the number "90" means "90 minutes", the number "150" means "150 minutes", i.e. the indication that the fire resistance limit of EI 150 is ensured, means that after at least 150 minutes the cable penetration will not lose its integrity and its thermal insulation capacity will not be lost, while it should be obvious to a specialist in this field of technology, possessing ordinary knowledge, for whom this technical solution is intended, that if the fire resistance limit of EI 150 is ensured, then for such a cable penetration any other fire resistance limit is also ensured, the time value for which is less than 150 minutes, i.e., for example, without limitation, the fire resistance limits of EI 15, EI 30, EI 45, EI 60, EI 90, EI 120 are ensured.

[0030] Preferably, without being limited, the following devices can be provided, which are products (assembly units) consisting of several parts connected to each other by assembly operations, in particular, by gluing, which are in a functional and structural unity, that is, as a rule, consisting of several parts connected to each other by assembly operations, in particular, by gluing and, optionally, by screwing or riveting, at the manufacturing plant during the manufacture of the cable penetration, which ensures their structural unity, wherein all parts of such devices are intended to solve the same technical problem of creating a cable penetration with increased fire resistance, which ensures the achievement of the same technical result, namely, increasing the fire resistance of the cable penetration, which ensures the functional unity of all parts of such devices.

[0031] For example, without limitation, as shown in Fig. 1, a cable penetration 10 can be provided, containing a fire-resistant fiber 11 wrapped around a cable 300 coming out of an opening 201 in a building structure 200, glued to the cable 300 and surfaces 202 around the opening 201 in the building structure 200 using a fire-resistant coating 12 applied to the cable 300, with which the mineral wool filler 13 glued to the cable 300 is impregnated, with which the opening 201 is filled to the depth of embedment together with a fire-resistant sealant 14 from the edge, wherein the fire-resistant fiber 11 is covered on the outside with a fire-resistant coating 12, wherein: the fire-resistant fiber 11 is wrapped around the cable 300 with a thickness of 50 mm for a length 111 of the section of placement of the fire-resistant fiber on the cable, which is 200 mm from the edge of the opening 201, the thickness of the fire-protective coating layer 12 on the cable 300 is 2 mm, the length 121 of the section of application of the fire-protective coating 12 on the cable 300 is 200 mm from the edge of the opening 201, the embedment depth is 150 mm deep from the edge of the opening 201, while ensuring the fire resistance limit of the cable penetration EI 60.

[0032] For example, without limitation, as shown in Fig. 1, a cable penetration 10 can be provided, containing a fire-resistant fiber 11 wrapped around a cable 300 coming out of an opening 201 in a building structure 200, glued to the cable 300 and surfaces 202 around the opening 201 in the building structure 200 using a fire-resistant coating 12 applied to the cable 300, with which the mineral wool filler 13 glued to the cable 300 is impregnated, with which the opening 201 is filled to the depth of embedment together with a fire-resistant sealant 14 from the edge, wherein the fire-resistant fiber 11 is covered on the outside with a fire-resistant coating 12, wherein: the fire-resistant fiber 11 is wrapped around the cable 300 with a thickness of 50 mm for a length 111 of the section of placement of the fire-resistant fiber on the cable, which is 200 mm from the edge of the opening 201, the thickness of the fire-protective coating layer 12 on the cable 300 is 2 mm, the length 121 of the section of application of the fire-protective coating 12 on the cable 300 is 200 mm from the edge of the opening 201, the embedment depth is 200 mm deep from the edge of the opening 201, while ensuring the fire resistance limit of the cable penetration EI 90.

[0033] For example, without limitation, as shown in Fig. 1, a cable penetration 10 can be provided, containing a fire-resistant fiber 11 wrapped around a cable 300 coming out of an opening 201 in a building structure 200, glued to the cable 300 and surfaces 202 around the opening 201 in the building structure 200 using a fire-resistant coating 12 applied to the cable 300, with which the mineral wool filler 13 glued to the cable 300 is impregnated, with which the opening 201 is filled to the depth of embedment together with a fire-resistant sealant 14 from the edge, wherein the fire-resistant fiber 11 is covered on the outside with a fire-resistant coating 12, wherein: the fire-resistant fiber 11 is wrapped around the cable 300 with a thickness of 50 mm for a length 111 of the section of placement of the fire-resistant fiber on the cable, which is 200 mm from the edge of the opening 201, the thickness of the fire-protective coating layer 12 on the cable 300 is 2 mm, the length 121 of the section of application of the fire-protective coating 12 on the cable 300 is 200 mm from the edge of the opening 201, the embedment depth is 250 mm deep from the edge of the opening 201, while ensuring the fire resistance limit of the cable penetration EI 150.

[0034] For example, without limitation, as shown in Fig. 1, a cable penetration 10 can be provided, containing a fire-resistant fiber 11 wrapped around a cable 300 coming out of an opening 201 in a building structure 200, glued to the cable 300 and surfaces 202 around the opening 201 in the building structure 200 using a fire-resistant coating 12 applied to the cable 300, with which the mineral wool filler 13 glued to the cable 300 is impregnated, glued into the sleeve 15 to the depth of embedment together with a fire-resistant sealant 14 from the edge of the opening 201, wherein the fire-resistant fiber 11 is covered on the outside with a fire-resistant coating 12, wherein: the fire-resistant fiber 11 is wrapped around the cable 300 with a thickness of 50 mm for a length 111 of the section of placement of the fire-resistant fiber on the cable, which is 200 mm from the edge of the opening 201, the thickness of the fire-protective coating layer 12 on the cable 300 is 2 mm, the length 121 of the section of application of the fire-protective coating 12 on the cable 300 is 200 mm from the edge of the opening 201, the embedment depth is 150 mm deep from the edge of the opening 201, while ensuring the fire resistance limit of the cable penetration EI 60, the length of the sleeve 15 does not exceed the depth of the opening 201.

[0035] For example, without limitation, as shown in Fig. 1, a cable penetration 10 can be provided, containing a fire-resistant fiber 11 wrapped around a cable 300 coming out of an opening 201 in a building structure 200, glued to the cable 300 and surfaces 202 around the opening 201 in the building structure 200 using a fire-resistant coating 12 applied to the cable 300, with which the mineral wool filler 13 glued to the cable 300 is impregnated, glued into the sleeve 15 to the depth of embedment together with a fire-resistant sealant 14 from the edge of the opening 201, wherein the fire-resistant fiber 11 is covered on the outside with a fire-resistant coating 12, wherein: the fire-resistant fiber 11 is wrapped around the cable 300 with a thickness of 50 mm for a length 111 of the section of placement of the fire-resistant fiber on the cable, which is 200 mm from the edge of the opening 201, the thickness of the fire-protective coating layer 12 on the cable 300 is 2 mm, the length 121 of the section of application of the fire-protective coating 12 on the cable 300 is 200 mm from the edge of the opening 201, the embedment depth is 200 mm deep from the edge of the opening 201, while ensuring the fire resistance limit of the cable penetration EI 90, the length of the sleeve 15 does not exceed the depth of the opening 201.

[0036] For example, without limitation, as shown in Fig. 1, a cable penetration 10 can be provided, containing a fire-resistant fiber 11 wrapped around a cable 300 coming out of an opening 201 in a building structure 200, glued to the cable 300 and surfaces 202 around the opening 201 in the building structure 200 using a fire-resistant coating 12 applied to the cable 300, with which the mineral wool filler 13 glued to the cable 300 is impregnated, glued into the sleeve 15 to the depth of embedment together with a fire-resistant sealant 14 from the edge of the opening 201, wherein the fire-resistant fiber 11 is covered on the outside with a fire-resistant coating 12, wherein: the fire-resistant fiber 11 is wrapped around the cable 300 with a thickness of 50 mm for a length 111 of the section of placement of the fire-resistant fiber on the cable, which is 200 mm from the edge of the opening 201, the thickness of the layer of fire-protective coating 12 on the cable 300 is 2 mm, the length 121 of the section of application of the fire-protective coating 12 on the cable 300 is 200 mm from the edge of the opening 201, the embedment depth is 250 mm deep from the edge of the opening 201, while ensuring the fire resistance limit of the cable penetration EI 150, the length of the sleeve 15 does not exceed the depth of the opening 201.

[0037] For example, without limitation, as shown in Fig. 2, a cable penetration 20 can be provided, containing a fire-resistant fiber 211 wrapped around a cable 301 emerging from an opening 201 in a building structure 200, glued to the cable 301 and surfaces 202 around the opening 201 in the building structure 200 using a fire-resistant coating 221 applied to the cable 301, with which the mineral wool filler 231 glued to the cable 301 is impregnated, glued into the sleeve 251 to the embedment depth together with a fire-resistant sealant 241 from the edge of the opening 201, wherein the fire-resistant fiber 211 is covered on the outside with a fire-resistant coating 221, and containing a fire-resistant fiber 212 wrapped around a cable 302 emerging from an opening 201 in the building structure 200, glued to cable 302 and surfaces 202 around opening 201 in building structure 200 using fire-retardant coating 222 applied to cable 302, with which mineral wool filler 232 glued to cable 302 is impregnated, glued into sleeve 252 to the embedment depth together with fire-retardant sealant 242 from the edge of opening 201, wherein fire-retardant fiber 212 is coated on the outside with fire-retardant coating 222, wherein fire-retardant fiber 211 is glued with fire-retardant coating 221 to impregnated mineral wool filler 261, placed between surfaces of fire-retardant fiber 211 and fire-retardant fiber 212 and glued to fire-retardant fiber 212 with fire-retardant coating 222, wherein mineral wool filler impregnated from the ends 261 is covered with a fire-retardant coating 2611, wherein: fire-retardant fiber 211 is wrapped around cable 301 with a thickness of 50 mm for a length 2111 of the area of placement of fire-retardant fiber on cable, which is 200 mm from the edge of opening 201, fire-retardant fiber 212 is wrapped around cable 302 with a thickness of 50 mm for a length 2121 of the area of placement of fire-retardant fiber on cable, which is 200 mm from the edge of opening 201, the thickness of the layer of fire-retardant coating 221 on cable 301 is 2 mm, the length 2211 of the area of application of fire-retardant coating 221 on cable 301 is 200 mm from the edge of opening 201, the thickness of the layer of fire-retardant coating 222 on cable 302 is 2 mm, the length 2221 of the area of application of fire-retardant coating 222 on cable 302 is 200 mm from the edge of the opening 201, the embedment depth is 150 mm deep from the edge of the opening 201, the length of the sleeve 251 does not exceed the depth of the opening 201, the length of the sleeve 252 does not exceed the depth of the opening 201, the impregnated mineral wool filler 261 is placed over a length corresponding to the length 2211 of the section of application of the fire-protective coating 221 on the cable 301, the impregnated mineral wool filler 261 is placed over a length corresponding to the length 2221 of the section of application of the fire-protective coating 222 on the cable 302, while ensuring the fire resistance limit of the cable penetration EI 60.

[0038] For example, without limitation, as shown in Fig. 2, a cable penetration 20 can be provided, containing a fire-resistant fiber 211 wrapped around a cable 301 emerging from an opening 201 in a building structure 200, glued to the cable 301 and surfaces 202 around the opening 201 in the building structure 200 using a fire-resistant coating 221 applied to the cable 301, with which the mineral wool filler 231 glued to the cable 301 is impregnated, glued into the sleeve 251 to the embedment depth together with a fire-resistant sealant 241 from the edge of the opening 201, wherein the fire-resistant fiber 211 is covered on the outside with a fire-resistant coating 221, and containing a fire-resistant fiber 212 wrapped around a cable 302 emerging from an opening 201 in the building structure 200, glued to cable 302 and surfaces 202 around opening 201 in building structure 200 using fire-retardant coating 222 applied to cable 302, with which mineral wool filler 232 glued to cable 302 is impregnated, glued into sleeve 252 to the embedment depth together with fire-retardant sealant 242 from the edge of opening 201, wherein fire-retardant fiber 212 is coated on the outside with fire-retardant coating 222, wherein fire-retardant fiber 211 is glued with fire-retardant coating 221 to impregnated mineral wool filler 261, placed between surfaces of fire-retardant fiber 211 and fire-retardant fiber 212 and glued to fire-retardant fiber 212 with fire-retardant coating 222, wherein mineral wool filler impregnated from the ends 261 is covered with a fire-retardant coating 2611, wherein: fire-retardant fiber 211 is wrapped around cable 301 with a thickness of 50 mm for a length 2111 of the area of placement of fire-retardant fiber on cable, which is 200 mm from the edge of opening 201, fire-retardant fiber 212 is wrapped around cable 302 with a thickness of 50 mm for a length 2121 of the area of placement of fire-retardant fiber on cable, which is 200 mm from the edge of opening 201, the thickness of the layer of fire-retardant coating 221 on cable 301 is 2 mm, the length 2211 of the area of application of fire-retardant coating 221 on cable 301 is 200 mm from the edge of opening 201, the thickness of the layer of fire-retardant coating 222 on cable 302 is 2 mm, the length 2221 of the area of application of fire-retardant coating 222 on cable 302 is 200 mm from the edge of the opening 201, the embedment depth is 200 mm deep from the edge of the opening 201, the length of the sleeve 251 does not exceed the depth of the opening 201, the length of the sleeve 252 does not exceed the depth of the opening 201, the impregnated mineral wool filler 261 is placed over a length corresponding to the length 2211 of the section of application of the fire-protective coating 221 on the cable 301, the impregnated mineral wool filler 261 is placed over a length corresponding to the length 2221 of the section of application of the fire-protective coating 222 on the cable 302, while ensuring the fire resistance limit of the cable penetration EI 90.

[0039] For example, without limitation, as shown in Fig. 2, a cable penetration 20 can be provided, containing a fire-resistant fiber 211 wrapped around a cable 301 emerging from an opening 201 in a building structure 200, glued to the cable 301 and surfaces 202 around the opening 201 in the building structure 200 using a fire-resistant coating 221 applied to the cable 301, with which the mineral wool filler 231 glued to the cable 301 is impregnated, glued into the sleeve 251 to the embedment depth together with a fire-resistant sealant 241 from the edge of the opening 201, wherein the fire-resistant fiber 211 is covered on the outside with a fire-resistant coating 221, and containing a fire-resistant fiber 212 wrapped around a cable 302 emerging from an opening 201 in the building structure 200, glued to cable 302 and surfaces 202 around opening 201 in building structure 200 using fire-retardant coating 222 applied to cable 302, with which mineral wool filler 232 glued to cable 302 is impregnated, glued into sleeve 252 to the embedment depth together with fire-retardant sealant 242 from the edge of opening 201, wherein fire-retardant fiber 212 is coated on the outside with fire-retardant coating 222, wherein fire-retardant fiber 211 is glued with fire-retardant coating 221 to impregnated mineral wool filler 261, placed between surfaces of fire-retardant fiber 211 and fire-retardant fiber 212 and glued to fire-retardant fiber 212 with fire-retardant coating 222, wherein mineral wool filler impregnated from the ends 261 is covered with a fire-retardant coating 2611, wherein: fire-retardant fiber 211 is wrapped around cable 301 with a thickness of 50 mm for a length 2111 of the area of placement of fire-retardant fiber on cable, which is 200 mm from the edge of opening 201, fire-retardant fiber 212 is wrapped around cable 302 with a thickness of 50 mm for a length 2121 of the area of placement of fire-retardant fiber on cable, which is 200 mm from the edge of opening 201, the thickness of the layer of fire-retardant coating 221 on cable 301 is 2 mm, the length 2211 of the area of application of fire-retardant coating 221 on cable 301 is 200 mm from the edge of opening 201, the thickness of the layer of fire-retardant coating 222 on cable 302 is 2 mm, the length 2221 of the area of application of fire-retardant coating 222 on cable 302 is 200 mm from the edge of the opening 201, the embedment depth is 250 mm deep from the edge of the opening 201, the length of the sleeve 251 does not exceed the depth of the opening 201, the length of the sleeve 252 does not exceed the depth of the opening 201, the impregnated mineral wool filler 261 is placed over a length corresponding to the length 2211 of the section of application of the fire-protective coating 221 on the cable 301, the impregnated mineral wool filler 261 is placed over a length corresponding to the length 2221 of the section of application of the fire-protective coating 222 on the cable 302, while ensuring the fire resistance limit of the cable penetration EI 150.

[0040] For example, without limitation, as shown in Fig. 3, a cable penetration 30 can be provided, containing a fire-resistant fiber 31 wrapped around a sleeve 35 for a cable 300 emerging from an opening 201 in a building structure 200 and wrapped around the cable 300, glued to the sleeve 35, the cable 300 and the surfaces 202 around the opening 201 in the building structure 200 using a fire-resistant coating 32 also applied to the sleeve 35 and the cable 300, with which the mineral wool filler 33 glued to the cable 300 is impregnated, glued into the sleeve 35 to the depth of embedment together with a fire-resistant sealant 34 deep from the edge of the sleeve 35, wherein the fire-resistant fiber 31 is covered on the outside with a fire-resistant coating 32, wherein: the fire-resistant fiber 31 wrapped with a thickness of 50 mm along the entire length of the sleeve 35 around the sleeve 35 and around the cable 300 for a length of 311 of the section of placement of the fire-resistant fiber on the cable, which is 200 mm from the edge of the sleeve 35, the thickness of the layer of fire-protective coating 32 on the cable 300 is 2 mm, the length of the section of application of the fire-protective coating 32 on the cable 300 is equal to the length 311 of the section of placement of the fire-resistant fiber on the cable and is 200 mm from the edge of the sleeve 35, the embedding depth is 150 mm deep from the edge of the sleeve 35, while ensuring the fire resistance limit of EI 60, the length of the sleeve 35 exceeds the depth of the hole 201.

[0041] For example, without limitation, as shown in Fig. 3, a cable penetration 30 can be provided, containing a fire-resistant fiber 31 wrapped around a sleeve 35 for a cable 300 emerging from an opening 201 in a building structure 200 and wrapped around the cable 300, glued to the sleeve 35, the cable 300 and the surfaces 202 around the opening 201 in the building structure 200 using a fire-resistant coating 32 also applied to the sleeve 35 and the cable 300, with which the mineral wool filler 33 glued to the cable 300 is impregnated, glued into the sleeve 35 to the depth of embedment together with a fire-resistant sealant 34 deep from the edge of the sleeve 35, wherein the fire-resistant fiber 31 is covered on the outside with a fire-resistant coating 32, wherein: the fire-resistant fiber 31 wrapped with a thickness of 50 mm along the entire length of the sleeve 35 around the sleeve 35 and around the cable 300 for a length of 311 of the section of placement of the fire-resistant fiber on the cable, which is 200 mm from the edge of the sleeve 35, the thickness of the layer of fire-protective coating 32 on the cable 300 is 2 mm, the length of the section of application of the fire-protective coating 32 on the cable 300 is equal to the length 311 of the section of placement of the fire-resistant fiber on the cable and is 200 mm from the edge of the sleeve 35, the embedding depth is 200 mm deep from the edge of the sleeve 35, while ensuring the fire resistance limit of EI 90, the length of the sleeve 35 exceeds the depth of the hole 201.

[0042] For example, without limitation, as shown in Fig. 3, a cable penetration 30 can be provided, containing a fire-resistant fiber 31 wrapped around a sleeve 35 for a cable 300 emerging from an opening 201 in a building structure 200 and wrapped around the cable 300, glued to the sleeve 35, the cable 300 and the surfaces 202 around the opening 201 in the building structure 200 using a fire-resistant coating 32 also applied to the sleeve 35 and the cable 300, with which the mineral wool filler 33 glued to the cable 300 is impregnated, glued into the sleeve 35 to the depth of embedment together with a fire-resistant sealant 34 deep from the edge of the sleeve 35, wherein the fire-resistant fiber 31 is covered on the outside with a fire-resistant coating 32, wherein: the fire-resistant fiber 31 wrapped with a thickness of 50 mm along the entire length of the sleeve 35 around the sleeve 35 and around the cable 300 for a length of 311 of the section of placement of the fire-resistant fiber on the cable, which is 200 mm from the edge of the sleeve 35, the thickness of the layer of fire-protective coating 32 on the cable 300 is 2 mm, the length of the section of application of the fire-protective coating 32 on the cable 300 is equal to the length 311 of the section of placement of the fire-resistant fiber on the cable and is 200 mm from the edge of the sleeve 35, the embedding depth is 250 mm deep from the edge of the sleeve 35, while ensuring the fire resistance limit of EI 150, the length of the sleeve 35 exceeds the depth of the hole 201.

[0043] For example, without limitation, as shown in Fig. 4, a cable penetration 40 can be provided, containing a fire-resistant fiber 41 wrapped around a combined sleeve 451 for cable 301 and a sleeve 452 for cable 302, coming out of an opening 201 in a building structure 200, glued to the sleeve 451, glued to the sleeve 452 and glued to the surfaces 202 around the opening 201 in the building structure 200 using a fire-protective coating 421 also applied to the sleeve 451, with which the mineral wool filler 431, glued to the cable 301, is impregnated, glued into the sleeve 451 to the depth of embedment together with a fire-protective sealant 441 deep from the edge of the sleeve 451, and using a fire-protective coating also applied to the sleeve 452 422, with which the mineral wool filler 432, glued to the cable 302, is impregnated, glued into the sleeve 452 to the depth of embedding together with the fire-retardant sealant 442 deep from the edge of the sleeve 452, wherein the sleeve 451 is glued with a fire-retardant coating 423 with the impregnated mineral wool filler 461, placed between the surfaces of the sleeve 451 and the sleeve 452 and glued to the sleeve 452 with a fire-retardant coating 423, wherein the impregnated mineral wool filler 461 is covered from the ends with a fire-retardant coating 4611, wherein the fire-resistant fiber 41 is covered on the outside with a fire-retardant coating 42, also applied to the cable 301 and the cable 302, wherein: the fire-resistant fiber 41 is wrapped with a thickness of 50 mm along the entire length sleeves 451 and 452, the thickness of the fire-protective coating layer 42 on the cable 301 is 2 mm, the thickness of the fire-protective coating layer 42 on the cable 302 is 2 mm, the length 4211 of the section of application of the fire-protective coating 42 on the cable 301 is 200 mm from the edge of sleeve 451, the length of the section of application of the fire-protective coating 42 on the cable 302 is equal to the length 4211 of the section of application of the fire-protective coating 42 on the cable 301 and is 200 mm from the edge of sleeve 452, the embedment depth is 150 mm deep from the edge of sleeve 451, the embedment depth is 150 mm deep from the edge of sleeve 452, the length of sleeve 451 exceeds the depth of hole 201, the length of sleeve 452 exceeds the depth of hole 201, impregnated mineral wool filler 461 is placed at a length corresponding to the length of sleeve 451 outside the opening 201 and is placed at a length corresponding to the length of sleeve 452 outside the opening 201, the lengths of sleeves 451 and 452 outside the opening 201 are equal, while the fire resistance limit of the cable penetration EI 60 is ensured.

[0044] For example, without limitation, as shown in Fig. 4, a cable penetration 40 can be provided, containing a fire-resistant fiber 41 wrapped around a combined sleeve 451 for cable 301 and a sleeve 452 for cable 302, coming out of an opening 201 in a building structure 200, glued to the sleeve 451, glued to the sleeve 452 and glued to the surfaces 202 around the opening 201 in the building structure 200 using a fire-protective coating 421 also applied to the sleeve 451, with which the mineral wool filler 431, glued to the cable 301, is impregnated, glued into the sleeve 451 to the depth of embedment together with a fire-protective sealant 441 deep from the edge of the sleeve 451, and using a fire-protective coating also applied to the sleeve 452 422, with which the mineral wool filler 432, glued to the cable 302, is impregnated, glued into the sleeve 452 to the depth of embedding together with the fire-retardant sealant 442 deep from the edge of the sleeve 452, wherein the sleeve 451 is glued with a fire-retardant coating 423 with the impregnated mineral wool filler 461, placed between the surfaces of the sleeve 451 and the sleeve 452 and glued to the sleeve 452 with a fire-retardant coating 423, wherein the impregnated mineral wool filler 461 is covered from the ends with a fire-retardant coating 4611, wherein the fire-resistant fiber 41 is covered on the outside with a fire-retardant coating 42, also applied to the cable 301 and the cable 302, wherein: the fire-resistant fiber 41 is wrapped with a thickness of 50 mm along the entire length sleeves 451 and 452, the thickness of the fire-protective coating layer 42 on the cable 301 is 2 mm, the thickness of the fire-protective coating layer 42 on the cable 302 is 2 mm, the length 4211 of the section of application of the fire-protective coating 42 on the cable 301 is 200 mm from the edge of sleeve 451, the length of the section of application of the fire-protective coating 42 on the cable 302 is equal to the length 4211 of the section of application of the fire-protective coating 42 on the cable 301 and is 200 mm from the edge of sleeve 452, the embedment depth is 200 mm deep from the edge of sleeve 451, the embedment depth is 200 mm deep from the edge of sleeve 452, the length of sleeve 451 exceeds the depth of hole 201, the length of sleeve 452 exceeds the depth of hole 201, the impregnated mineral wool filler 461 is placed at a length corresponding to the length of sleeve 451 outside the opening 201 and is placed at a length corresponding to the length of sleeve 452 outside the opening 201, the lengths of sleeves 451 and 452 outside the opening 201 are equal, while the fire resistance limit of the cable penetration EI 90 is ensured.

[0045] For example, without limitation, as shown in Fig. 4, a cable penetration 40 can be provided, containing a fire-resistant fiber 41 wrapped around a combined sleeve 451 for cable 301 and a sleeve 452 for cable 302, coming out of an opening 201 in a building structure 200, glued to the sleeve 451, glued to the sleeve 452 and glued to the surfaces 202 around the opening 201 in the building structure 200 using a fire-protective coating 421 also applied to the sleeve 451, with which the mineral wool filler 431, glued to the cable 301, is impregnated, glued into the sleeve 451 to the depth of embedment together with a fire-protective sealant 441 deep from the edge of the sleeve 451, and using a fire-protective coating also applied to the sleeve 452 422, with which the mineral wool filler 432, glued to the cable 302, is impregnated, glued into the sleeve 452 to the depth of embedding together with the fire-retardant sealant 442 deep from the edge of the sleeve 452, wherein the sleeve 451 is glued with a fire-retardant coating 423 with the impregnated mineral wool filler 461, placed between the surfaces of the sleeve 451 and the sleeve 452 and glued to the sleeve 452 with a fire-retardant coating 423, wherein the impregnated mineral wool filler 461 is covered from the ends with a fire-retardant coating 4611, wherein the fire-resistant fiber 41 is covered on the outside with a fire-retardant coating 42, also applied to the cable 301 and the cable 302, wherein: the fire-resistant fiber 41 is wrapped with a thickness of 50 mm along the entire length sleeves 451 and 452, the thickness of the fire-protective coating layer 42 on the cable 301 is 2 mm, the thickness of the fire-protective coating layer 42 on the cable 302 is 2 mm, the length 4211 of the section of application of the fire-protective coating 42 on the cable 301 is 200 mm from the edge of sleeve 451, the length of the section of application of the fire-protective coating 42 on the cable 302 is equal to the length 4211 of the section of application of the fire-protective coating 42 on the cable 301 and is 200 mm from the edge of sleeve 452, the embedment depth is 250 mm deep from the edge of sleeve 452, the length of sleeve 451 exceeds the depth of hole 201, the length of sleeve 452 exceeds the depth of hole 201, impregnated mineral wool filler 461 is placed at a length corresponding to the length of sleeve 451 outside the hole 201 and is placed on a length corresponding to the length of sleeve 452 outside opening 201, the lengths of sleeves 451 and 452 outside opening 201 are equal, while ensuring the fire resistance limit of the cable penetration EI 150.

[0046] For example, without limitation, as shown in Fig. 5, a cable penetration 50 can be provided, containing a fire-resistant fiber 51 wrapped around a sleeve 55 for a cable 300 emerging from an opening 201 in a building structure 200, glued to the sleeve 55 and surfaces 202 around the opening 201 in the building structure 200 using a fire-resistant coating 52 also applied to the sleeve 55 and the cable 300, a fire-resistant sealant 54 is applied to the sleeve 55 to the embedment depth from the edge of the sleeve 55, with the help of which a fragment of a mineral wool slab 53 with an opening for a cable 300 is glued into the sleeve 55, glued to the inner surface of the opening in the fragment of the mineral wool slab 53 using a sealant 54, wherein the fire-resistant fiber 51 is covered on the outside with a fire-resistant coating 52, wherein the fire-resistant coating 52 is also applied to the end portion of the fragment of mineral wool slab 53, wherein the thickness of the fragment of mineral wool slab 53 is the embedding depth, wherein: fire-resistant fiber 51 is wrapped with a thickness of 50 mm along the entire length of sleeve 55 around sleeve 55, the thickness of the layer of fire-protective coating 52 on cable 300 is 2 mm, the length 521 of the section of application of fire-protective coating 52 on cable 300 is 200 mm from the edge of sleeve 55, the embedding depth is 150 mm deep from the edge of sleeve 55, wherein the fire resistance limit of cable penetration EI 60 is ensured, the length of sleeve 55 exceeds the depth of opening 201.

[0047] For example, without limitation, as shown in Fig. 5, a cable penetration 50 can be provided, containing a fire-resistant fiber 51 wrapped around a sleeve 55 for a cable 300 emerging from an opening 201 in a building structure 200, glued to the sleeve 55 and surfaces 202 around the opening 201 in the building structure 200 using a fire-resistant coating 52 also applied to the sleeve 55 and the cable 300, a fire-resistant sealant 54 is applied to the sleeve 55 to the embedment depth from the edge of the sleeve 55, with the help of which a fragment of a mineral wool slab 53 with an opening for a cable 300 is glued into the sleeve 55, glued to the inner surface of the opening in the fragment of the mineral wool slab 53 using a sealant 54, wherein the fire-resistant fiber 51 is covered on the outside with a fire-resistant coating 52, wherein the fire-resistant coating 52 is also applied to the end portion of the fragment of mineral wool slab 53, wherein the thickness of the fragment of mineral wool slab 53 is the embedding depth, wherein: fire-resistant fiber 51 is wrapped with a thickness of 50 mm along the entire length of sleeve 55 around sleeve 55, the thickness of the layer of fire-protective coating 52 on cable 300 is 2 mm, the length 521 of the section of application of fire-protective coating 52 on cable 300 is 200 mm from the edge of sleeve 55, the embedding depth is 200 mm deep from the edge of sleeve 55, wherein the fire resistance limit of cable penetration EI 90 is ensured, the length of sleeve 55 exceeds the depth of opening 201.

[0048] For example, without limitation, as shown in Fig. 5, a cable penetration 50 can be provided, containing a fire-resistant fiber 51 wrapped around a sleeve 55 for a cable 300 emerging from an opening 201 in a building structure 200, glued to the sleeve 55 and surfaces 202 around the opening 201 in the building structure 200 using a fire-resistant coating 52 also applied to the sleeve 55 and the cable 300, a fire-resistant sealant 54 is applied to the sleeve 55 to the embedment depth from the edge of the sleeve 55, with the help of which a fragment of a mineral wool slab 53 with an opening for a cable 300 is glued into the sleeve 55, glued to the inner surface of the opening in the fragment of the mineral wool slab 53 using a sealant 54, wherein the fire-resistant fiber 51 is covered on the outside with a fire-resistant coating 52, wherein the fire-resistant coating 52 is also applied to the end portion of the fragment of mineral wool slab 53, wherein the thickness of the fragment of mineral wool slab 53 is the embedding depth, wherein: fire-resistant fiber 51 is wrapped with a thickness of 50 mm along the entire length of sleeve 55 around sleeve 55, the thickness of the layer of fire-protective coating 52 on cable 300 is 2 mm, the length 521 of the section of application of fire-protective coating 52 on cable 300 is 200 mm from the edge of sleeve 55, the embedding depth is 250 mm deep from the edge of sleeve 55, wherein the fire resistance limit of cable penetration EI 150 is ensured, the length of sleeve 55 exceeds the depth of opening 201.

[0049] For example, without limitation, as shown in Fig. 6, a cable penetration 60 can be provided, containing a fire-resistant fiber 61 wrapped around a combined sleeve 651 for cable 301 and a sleeve 652 for cable 302, coming out of an opening 201 in a building structure 200, glued to the sleeve 651, glued to the sleeve 652 and glued to the surfaces 202 around the opening 201 in the building structure 200 using a fire-protective coating 621 also applied to the sleeve 451, a fragment of a mineral wool slab 631 with an opening for cable 301 is glued to the depth of embedding using a fire-protective sealant 641 deep from the edge of the sleeve 651, a fragment is glued to the depth of embedding using a fire-protective sealant 642 deep from the edge of the sleeve 652 mineral wool slab 632 with an opening for cable 302, wherein sleeve 651 is glued with fire-protective coating 623 with impregnated mineral wool filler 661, placed between the surfaces of sleeve 651 and sleeve 652 and glued to sleeve 652 with fire-protective coating 623, wherein the impregnated mineral wool filler 661 is covered from the ends with fire-protective coating 6611, wherein fire-resistant fiber 61 is covered on the outside with fire-protective coating 62, also applied to cable 301 and cable 302, wherein: fire-resistant fiber 61 is wrapped with a thickness of 50 mm along the entire length of sleeves 651 and 652, the thickness of the layer of fire-protective coating 62 on sleeve 301 is 2 mm, the thickness of the layer of fire-protective coating 62 on cable 302 is 2 mm, the length 6211 of the section of application of the fire-retardant coating 62 on the cable 301 is 200 mm from the edge of the sleeve 651, the length of the section of application of the fire-retardant coating 62 on the cable 302 is equal to the length 6211 of the section of application of the fire-retardant coating 62 on the cable 301 and is 200 mm from the edge of the sleeve 652, the embedment depth is 150 mm deep from the edge of the sleeve 652, the length of the sleeve 651 exceeds the depth of the opening 201, the length of the sleeve 652 exceeds the depth of the opening 201, the impregnated mineral wool filler 661 is placed at a length corresponding to the length of the sleeve 651 outside the opening 201 and is placed at a length corresponding to the length of the sleeve 652 outside the opening 201, the lengths of the sleeves 651 and 652 outside the opening 201 are equal, while the fire resistance limit of the cable penetration EI is ensured 60.

[0050] For example, without limitation, as shown in Fig. 6, a cable penetration 60 can be provided, containing a fire-resistant fiber 61 wrapped around a combined sleeve 651 for cable 301 and a sleeve 652 for cable 302, coming out of an opening 201 in a building structure 200, glued to the sleeve 651, glued to the sleeve 652 and glued to the surfaces 202 around the opening 201 in the building structure 200 using a fire-protective coating 621 also applied to the sleeve 451, a fragment of a mineral wool slab 631 with an opening for cable 301 is glued to the depth of embedding using a fire-protective sealant 641 deep from the edge of the sleeve 651, a fragment is glued to the depth of embedding using a fire-protective sealant 642 deep from the edge of the sleeve 652 mineral wool slab 632 with an opening for cable 302, wherein sleeve 651 is glued with fire-protective coating 623 with impregnated mineral wool filler 661, placed between the surfaces of sleeve 651 and sleeve 652 and glued to sleeve 652 with fire-protective coating 623, wherein the impregnated mineral wool filler 661 is covered from the ends with fire-protective coating 6611, wherein fire-resistant fiber 61 is covered on the outside with fire-protective coating 62, also applied to cable 301 and cable 302, wherein: fire-resistant fiber 61 is wrapped with a thickness of 50 mm along the entire length of sleeves 651 and 652, the thickness of the layer of fire-protective coating 62 on sleeve 301 is 2 mm, the thickness of the layer of fire-protective coating 62 on cable 302 is 2 mm, the length 6211 of the section of application of the fire-retardant coating 62 on the cable 301 is 200 mm from the edge of the sleeve 651, the length of the section of application of the fire-retardant coating 62 on the cable 302 is equal to the length 6211 of the section of application of the fire-retardant coating 62 on the cable 301 and is 200 mm from the edge of the sleeve 652, the embedment depth is 150 mm deep from the edge of the sleeve 652, the length of the sleeve 651 exceeds the depth of the opening 201, the length of the sleeve 652 exceeds the depth of the opening 201, the impregnated mineral wool filler 661 is placed at a length corresponding to the length of the sleeve 651 outside the opening 201 and is placed at a length corresponding to the length of the sleeve 652 outside the opening 201, the lengths of the sleeves 651 and 652 outside the opening 201 are equal, while the fire resistance limit of the cable penetration EI is ensured 90.

[0051] For example, without limitation, as shown in Fig. 6, a cable penetration 60 can be provided, containing a fire-resistant fiber 61 wrapped around a combined sleeve 651 for cable 301 and a sleeve 652 for cable 302, coming out of an opening 201 in a building structure 200, glued to the sleeve 651, glued to the sleeve 652 and glued to the surfaces 202 around the opening 201 in the building structure 200 using a fire-protective coating 621 also applied to the sleeve 451, a fragment of a mineral wool slab 631 with an opening for cable 301 is glued to the depth of embedding using a fire-protective sealant 641 deep from the edge of the sleeve 651, a fragment is glued to the depth of embedding using a fire-protective sealant 642 deep from the edge of the sleeve 652 mineral wool slab 632 with an opening for cable 302, wherein sleeve 651 is glued with fire-protective coating 623 with impregnated mineral wool filler 661, placed between the surfaces of sleeve 651 and sleeve 652 and glued to sleeve 652 with fire-protective coating 623, wherein the impregnated mineral wool filler 661 is covered from the ends with fire-protective coating 6611, wherein fire-resistant fiber 61 is covered on the outside with fire-protective coating 62, also applied to cable 301 and cable 302, wherein: fire-resistant fiber 61 is wrapped with a thickness of 50 mm along the entire length of sleeves 651 and 652, the thickness of the layer of fire-protective coating 62 on sleeve 301 is 2 mm, the thickness of the layer of fire-protective coating 62 on cable 302 is 2 mm, the length 6211 of the section of application of the fire-retardant coating 62 on the cable 301 is 200 mm from the edge of the sleeve 651, the length of the section of application of the fire-retardant coating 62 on the cable 302 is equal to the length 6211 of the section of application of the fire-retardant coating 62 on the cable 301 and is 200 mm from the edge of the sleeve 652, the embedment depth is 250 mm deep from the edge of the sleeve 652, the length of the sleeve 651 exceeds the depth of the hole 201, the length of the sleeve 652 exceeds the depth of the hole 201, the impregnated mineral wool filler 661 is placed at a length corresponding to the length of the sleeve 651 outside the hole 201 and is placed at a length corresponding to the length of the sleeve 652 outside the hole 201, the lengths of the sleeves 651 and 652 outside the hole 201 are equal, while the fire resistance limit of the cable penetration EI is ensured 150.

[0052] In this case, preferably, without limitation, any mentioned fire-protective coating is the same fire-protective coating regardless of its designation in a particular drawing. In this case, preferably, without limitation, any mentioned fire-protective sealant is the same fire-protective sealant regardless of its designation in a particular drawing.

[0053] Preferably, but not limited to, the fire-resistant fiber, when fixed to the surface of the building structure around the opening, in addition to the adhesive connection with said surface, can be connected to said surface mechanically, for example, but not limited to, by screwing or riveting, for example, but not limited to, by means of an anchor, for example, but not limited to, by means of a wedge anchor, wherein, without limitation, depending on the selected fastener, a known from the prior art or future created mounting perforated tape that facilitates the connection can be used, placed around said opening over the fire-resistant fiber adjacent to said surface around said opening, through the openings of which the fastener fixes the tape over the fire-resistant fiber on said surface and provides a better connection of the fire-resistant fiber to said surface, wherein, preferably, said tape and fastener are also covered with a fire-resistant coating.

[0054] Preferably, but not limited to, the fire-resistant fiber, when secured around the cable and/or around the sleeve, in addition to being adhesively bonded to the surface of the cable, to the surface or surfaces of the sleeve, can also be secured mechanically, for example, but not limited to, by means of a binding wire, for example, but not limited to, a binding wire known from the prior art or created in the future, placed over the fire-resistant fiber around it with any pitch or without a pitch (tightly), tightening the fire-resistant fiber and the cable and/or the fire-resistant fiber and the sleeve, wherein, preferably, but not limited to, after the binding, the fire-resistant coating is applied not only to the fire-resistant fiber, but also to the binding wire, wherein, preferably, but not limited to, the thickness of the binding wire does not exceed the total thickness of the layer of fire-resistant coating applied.

[0055] In this way, preferably, without limitation, it is ensured that a monolithic cable penetration is created, in which all parts are directly or indirectly at least connected to each other by adhesive joints, and at least in which all external surfaces of all its parts are covered with a fire-protective coating. In this case, all parts of the cable penetration can be fastened together directly at the manufacturing plant, that is, preferably, without limitation, in the process of erecting a thermal power plant, a nuclear power plant, their buildings, structures in which cable penetrations are used.

[0056] For example, without limitation (Fig. 1), a cable penetration can be provided, which is a mineral wool filler, which fills an opening of at least 150 mm deep in a building structure at least to the embedding depth, wherein: the filler has a density of no more than 70 kg/ ^m3 , preferably 35-70 kg/ ^m3 , and is optionally pre-impregnated with a fire-resistant coating; and/or a fire-resistant fiber, which is wrapped around the cable outside the opening for the length of the section where the fire-resistant fiber is placed on the cable, wherein the fire-resistant fiber is also at least partially placed on the outer surface of the building structure; wherein: the opening is also filled at least to the embedding depth with a fire-resistant sealant; the fire-resistant coating is applied to at least: the length of the section where the fire-resistant coating is applied to the cable outside the opening; and/or the surfaces of the building structure in places where the fire-resistant fiber is adjacent thereto; and/or a surface of the fire-resistant fiber facing the cable; and/or a surface of the fire-resistant fiber facing away from the cable; and/or a surface of the fire-resistant fiber facing the surface of the building structure; and/or a surface of the fire-resistant fiber facing away from the surface of the building structure; wherein at least the thickness of the layer of fire-resistant coating on the cable, the length of the section of application of the fire-resistant coating on the cable, the embedment depth, the length of the section of placement of the fire-resistant fiber on the cable are selected depending on the required fire resistance limit in accordance with the table:

Fire resistance limit Thickness of the fire-protective coating layer on the cable, not less than, mm Length of the area where the fire-protective coating is applied to the cable, not less than, mm Embedding depth, not less than, mm Length of the section of placement of fire-resistant fiber on the cable, not less than, mm EI 45 or EI 60 2.0 or 2.1 200 or 210 150 or 160 200 or 210 EI 90 150 or 160 EI 120 2.0 or 2.2 200 or 210 EI 150 250 or 260

[0057] For example, without limitation (Fig. 2), a cable penetration can be provided, which is a mineral wool filler, which fills an opening of at least 150 mm deep in a building structure at least to the embedding depth, wherein: the filler has a density of no more than 70 kg/ ^m3 , preferably 35-70 kg/ ^m3 , and is optionally pre-impregnated with a fire-retardant coating; and/or a fire-resistant fiber, with which at least two cables are wrapped outside the opening for the length of the section where the fire-resistant fiber is placed on the cable, wherein the fire-resistant fiber is also at least partially placed on the outer surface of the building structure, wherein the impregnated mineral wool filler is placed for the length of the section where the fire-resistant fiber is placed on the cable between the cables; wherein: the opening is also filled at least to the embedding depth with a fire-resistant sealant; the fire-protective coating is applied to at least: the length of the section of application of the fire-protective coating on the cable outside the opening; and/or the surface of the building structure in places where the fire-resistant fiber is adjacent to them; and/or the surface of the fire-resistant fiber facing the cable; and/or the surface of the fire-resistant fiber facing away from the cable; and/or the surface of the fire-resistant fiber facing the surface of the building structure; and/or the surface of the fire-resistant fiber facing away from the surface of the building structure; wherein at least the thickness of the fire-protective coating layer on the cable, the length of the section of application of the fire-protective coating on the cable, the embedment depth, the length of the section of placement of the fire-resistant fiber on the cable are selected depending on the required fire resistance limit in accordance with the table:

Fire resistance limit Thickness of the fire-protective coating layer on the cable, not less than, mm Length of the area where the fire-protective coating is applied to the cable, not less than, mm Embedding depth, not less than, mm Length of the section of placement of fire-resistant fiber on the cable, not less than, mm EI 45 or EI 60 2.0 or 2.1 200 or 210 150 or 160 200 or 210 EI 90 150 or 160 EI 120 2.0 or 2.2 200 or 210 EI 150 250 or 260

[0058] For example, without limitation (Fig. 1, 2, 3, 4), a cable penetration can be provided, which is a mineral wool filler, which is filled, at least to the embedding depth, into a sleeve placed in an opening with a depth of at least 150 mm in a building structure, the length of which exceeds or does not exceed the depth of the opening, wherein: the filler has a density of no more than 70 kg/ ^m3 , preferably 35-70 kg/ ^m3 , and is optionally pre-impregnated with a fire-retardant coating; and/or a fire-retardant fiber, which is wrapped around the sleeve outside the opening, wherein the fire-retardant fiber is also at least partially located on the outer surface of the building structure; wherein: the sleeve is also filled, at least to the embedding depth, with a fire-retardant sealant; the fire-retardant coating is applied to at least: the length of the section of application of the fire-retardant coating on the cable outside the sleeve; and/or the surface of the building structure in places where the fire-resistant fiber is adjacent to it; and/or the surface of the fire-resistant fiber facing the sleeve; and/or the surface of the fire-resistant fiber facing away from the sleeve; and/or the surface of the fire-resistant fiber facing the surface of the building structure; and/or the surface of the fire-resistant fiber facing away from the surface of the building structure; wherein at least the thickness of the layer of fire-resistant coating on the cable, the length of the section of application of the fire-resistant coating on the cable, the embedment depth, the length of the section of placement of the fire-resistant fiber on the cable are selected depending on the required fire resistance limit in accordance with the table:

Fire resistance limit Thickness of the fire-protective coating layer on the cable, not less than, mm Length of the area where the fire-protective coating is applied to the cable, not less than, mm Embedding depth, not less than, mm Length of the section of placement of fire-resistant fiber on the cable, not less than, mm EI 45 or EI 60 2.0 or 2.1 200 or 210 150 or 160 200 or 210 EI 90 150 or 160 EI 120 2.0 or 2.2 200 or 210 EI 150 250 or 260

[0059] For example, without limitation (Fig. 4), a cable penetration can be provided, which is a mineral wool filler, which is filled, at least to the embedment depth, in at least two sleeves placed in an opening with a depth of at least 150 mm in a building structure, each of which is longer than the depth of the opening, wherein: the filler has a density of no more than 70 kg/ ^m3 , preferably 35-70 kg/ ^m3 , and is optionally pre-impregnated with a fire-retardant coating; and a fire-resistant fiber, which is wrapped for the length of the placement of the fire-resistant fiber on the sleeve of the sleeve outside the opening, wherein the fire-resistant fiber is also at least partially placed on the outer surface of the building structure, wherein the impregnated mineral wool filler is placed for the length of the section of placement of the fire-resistant fiber on the sleeve between the sleeves; wherein: each sleeve is also filled with a fire-retardant sealant at least to the embedding depth; the fire-retardant coating is applied to at least: the length of the section of application of the fire-retardant coating on the cable outside each sleeve; and/or the surface of the building structure in places where the fire-retardant fiber is adjacent to them; and/or the surface of the fire-retardant fiber facing the sleeve; and/or the surface of the fire-retardant fiber facing away from the sleeve; and/or the surface of the fire-retardant fiber facing the surface of the building structure; and/or the surface of the fire-retardant fiber facing away from the surface of the building structure; wherein at least the thickness of the fire-retardant coating layer on the cable, the length of the section of application of the fire-retardant coating on the cable, the embedding depth, the length of the section of placement of the fire-retardant fiber on the cable, are selected depending on the required fire resistance limit in accordance with the table:

Fire resistance limit Thickness of the fire-protective coating layer on the cable, not less than, mm Length of the area where the fire-protective coating is applied to the cable, not less than, mm Embedding depth, not less than, mm Length of the area where the refractory fiber is placed on the sleeve EI 45 or EI 60 2.0 or 2.1 200 or 210 150 or 160 Corresponds to the length of the sleeve outside the hole outside the hole EI 90 150 or 160 EI 120 2.0 or 2.2 200 or 210 EI 150 250 or 260

[0060] For example, without limitation (Fig. 5), a cable penetration can be provided, which is a fragment of a mineral wool slab with a density of at least 100 kg/ ^m3 with an opening for a cable, which is filled, at least to the depth of embedding, in a sleeve placed in an opening with a depth of at least 150 mm in a building structure, the length of which exceeds the depth of the opening; and a fire-resistant fiber, which is wrapped around the sleeve outside the opening for the length of placement of the fire-resistant fiber on the sleeve, wherein the fire-resistant fiber is also at least partially placed on the outer surface of the building structure; wherein: the sleeve is also filled, at least to the depth of embedding, with a fire-resistant sealant; the fire-resistant coating is applied to at least: the length of the section of application of the fire-resistant coating on the cable outside the sleeve; the surface of the building structure in places where the fire-resistant fiber is adjacent to them; and/or a surface of the fire-resistant fiber facing the sleeve; and/or a surface of the fire-resistant fiber facing away from the sleeve; and/or a surface of the fire-resistant fiber facing the surface of the building structure; and/or a surface of the fire-resistant fiber facing away from the surface of the building structure; wherein at least the thickness of the layer of fire-resistant coating on the cable, the length of the section of application of the fire-resistant coating on the cable, the embedment depth, the length of the section of placement of the fire-resistant fiber on the cable are selected depending on the required fire resistance limit in accordance with the table:

Fire resistance limit Thickness of the fire-protective coating layer on the cable, not less than, mm Length of the area where the fire-protective coating is applied to the cable, not less than, mm Embedding depth, not less than, mm Length of the area where the refractory fiber is placed on the sleeve EI 45 or EI 60 2.0 or 2.1 200 or 210 150 or 160 Corresponds to the length of the sleeve outside the hole outside the hole EI 90 150 or 160 EI 120 2.0 or 2.2 200 or 210 EI 150 250 or 260

[0061] For example, without limitation (Fig. 6), a cable penetration can be provided, which is a fragment of a mineral wool slab with a density of at least 100 kg/ ^m3 with an opening for a cable, with which at least two sleeves placed in an opening with a depth of at least 150 mm in a building structure are filled at least to the embedment depth; and a fire-resistant fiber, with which at least two sleeves are wrapped outside the opening for the length of the section of placement of the fire-resistant fiber on the sleeve, wherein the fire-resistant fiber is also at least partially placed on the outer surface of the building structure; wherein the mineral wool filler impregnated with a fire-protective coating with a density of no more than 70 kg/ ^m3 is placed for the length of the section of placement of the fire-resistant fiber on the sleeve between the sleeves; wherein: each sleeve is also filled with a fire-retardant sealant at least to the embedding depth, wherein the impregnated mineral wool filler is placed over the length of the section of placement of the fire-retardant fiber on the sleeve between the sleeves; the fire-retardant coating is applied to at least: the length of the section of application of the fire-retardant coating on the cable outside the sleeve; the surface of the building structure in places where the fire-retardant fiber is adjacent to them; and/or the surface of the fire-retardant fiber facing the sleeve; and/or the surface of the fire-retardant fiber facing away from the sleeve; and/or the surface of the fire-retardant fiber facing the surface of the building structure; and/or the surface of the fire-retardant fiber facing away from the surface of the building structure; wherein at least the thickness of the fire-retardant coating layer on the cable, the length of the section of application of the fire-retardant coating on the cable, the embedding depth, the length of the section of placement of the fire-retardant fiber on the cable, are selected depending on the required fire resistance limit in accordance with the table:

Fire resistance limit Thickness of the fire-protective coating layer on the cable, not less than, mm Length of the area where the fire-protective coating is applied to the cable, not less than, mm Embedding depth, not less than, mm Length of the area where the refractory fiber is placed on the sleeve EI 45 or EI 60 2.0 or 2.1 200 or 210 150 or 160 Corresponds to the length of the sleeve outside the hole outside the hole EI 90 150 or 160 EI 120 2.0 or 2.2 200 or 210 EI 150 250 or 260

[0062] In this case, preferably, without limitation, the fire-resistant fiber, when fixed to the surface of the building structure around the opening, in addition to the adhesive connection with said surface, can be connected to said surface mechanically, for example, without limitation, by screwing or riveting, for example, without limitation, by means of an anchor, for example, without limitation, by means of a wedge anchor, wherein, without limitation, depending on the selected fastener, a perforated mounting tape known from the prior art or created in the future that facilitates the connection can be used, placed around said opening over the fire-resistant fiber adjacent to said surface around said opening, through the openings of which the fastener fixes the tape over the fire-resistant fiber on said surface and ensures a better connection of the fire-resistant fiber with said surface, wherein, preferably, said tape and fastener are also covered with a fire-protective coating.

[0063] In this case, preferably, without limitation, the fire-resistant fiber, when secured around the cable and/or around the sleeve, in addition to the adhesive bonding to the surface of the cable, to the surface or surfaces of the sleeve, can also be secured mechanically, for example, without limitation, by means of binding, for example, without limitation, by means of a binding wire known from the prior art or created in the future, placed over the fire-resistant fiber around it with some pitch or without a pitch (tightly), tightening the fire-resistant fiber and the cable and/or the fire-resistant fiber and the sleeve, wherein, preferably, without limitation, after binding, the fire-resistant coating is applied not only to the fire-resistant fiber, but also to the binding wire, wherein, preferably, without limitation, the thickness of the binding wire does not exceed the total thickness of the layer of the applied fire-resistant coating.

[0064] For the production at the manufacturing plant of the cable penetrations described with reference to Figs. 1-6, components for the production of such cable penetrations may be proposed kits for the production of cable penetrations, thus including fire-resistant fiber, fire-protective coating, fire-protective sealant, mineral wool filler and/or a fragment of mineral wool slab, and, optionally, at least one sleeve, mounting perforated tape, binding wire, fasteners, in quantities sufficient for the production of any of the cable penetrations previously described with reference to Figs. 1-6.

[0065] In this case, preferably, without limitation, any claimed cable penetration is designed in such a way as to maintain its characteristics under the environmental conditions given in the table:

Parameter name Meaning Normal operation mode Compensated "small leak" mode Uncompensated "small leak" mode "Big leak" mode, including minor design basis accident Beyond design basis accident mode Temperature, °C 15÷60 up to 90 up to 125 up to 150
up to 190 (70 sec) up to 150
up to 207 (5 h)
up to 250 (1 h) Absolute pressure, MPa 0.085÷0.103 0.079÷0.17 0.079÷0.25 0.079÷0.5 up to 0.5 Relative humidity, %, not more than 90 steam-gas mixture steam-gas mixture steam-gas mixture steam-gas mixture Volumetric activity, Bq/l, no more than 7.4 ⋅ 10 ⁴ 3.7 ⋅ 10 ⁷ 4 ⋅ 10 ⁸ 4 ⋅ 10 ⁹ 5 ⋅ 10 ¹¹ Absorbed dose rate of radiation, Gy/h, no more than 1.0 1.0 10 100 2 ⋅ 10 ⁴ Time of existence of the regime, h, no more than - 10 10 24 72 Estimated frequency of occurrence of the mode - once every two years once every two years once per service life once per service life Temperature limit after accident, °C - 20÷60 20÷60 20÷60 20÷60 Absolute pressure limit after accident, MPa - 0.09÷0.12 0.09÷0.12 0.09÷0.12 0.09÷0.12 The duration of existence of the specified parameters after the accident, day, no more than - 30 30 30 300

[0066] In this case, preferably, without limitation, any claimed cable penetration is made in such a way as to be resistant to chemical effects during repeated washing with decontaminating solutions: caustic soda (NaOH) in an amount of 30-40 g/l, or potassium permanganate (KMnO ₄ ) in an amount of 2-5 g/l, or oxalic acid (H ₂ C ₂ O ₄ ) in an amount of 10-30 g/l, or hydrogen peroxide (H ₂ O ₂ ) in an amount of 1 g/l, or nitric acid (HNO ₃ ) in an amount of 1 g/l, at a temperature of decontaminating solutions of 90-95°C, with a cycle duration of 1 to 10 hours with each solution, with a frequency of 1 time per year; _{oxalic acid (H2C2O4 )} in the amount of 5 g/kg, or sodium hexametaphosphate (( _NaPO3 ) ₆ ) in the _amount of 3.5 g/kg, or sulfanol in the amount of 1.5 g/kg, at a temperature of decontaminating solutions of 60°C, for a duration of 10 hours/year. In this case, it is preferable, without limitation, that any declared cable penetration is made in such a way that in the modes of “minor leak” and “major leak” in the containment area of the NPP, it can withstand intensive irrigation with a solution of boric acid with a concentration of 16±0.5 g/kg with the addition of caustic potassium in an amount of 2±0.1 g/kg and hydrazine hydrate in an amount of 150±0.5 mg/kg, at a solution temperature in the “minor leak” mode from +5 to +90°C, at a solution temperature in the “major leak” mode up to +150°C.

[0067] In this case, preferably, without limitation, any declared cable penetration is made in such a way as to ensure tightness for water and air with a pressure difference between rooms of at least 0.03 MPa (in particular, without limitation, in accordance with the requirements for emergency power supply systems of nuclear power plants NP 087-11).

[0068] In this case, preferably, without limitation, any declared cable penetration is made of non-toxic materials and has low smoke-forming capacity in accordance with GOST 12.1.044-89.

[0069] In this case, preferably, but not limited to, the claimed cable penetrations are manufactured as follows. Either the cable itself or a sleeve in which the cable is placed is placed in a pre-prepared hole. Then, using, for example, but not limited to, a mounting gun, sealing with a fire-retardant sealant is carried out to the embedment depth. Then a fire-retardant coating is prepared. If mineral wool filler is used in the cable penetration, placed to the embedment depth, then such mineral wool filler is not necessarily, although preferably, impregnated for 5-10 minutes in the fire-retardant coating; in this case, if mineral wool filler is placed between different surfaces of fire-resistant fiber wrapped around different cables, or between different sleeves, then such mineral wool filler is impregnated for 5-10 minutes in the fire-retardant coating. Then the mineral wool filler is compacted in the hole or in the sleeve to the embedment depth. If a fragment of a mineral wool slab is used instead of mineral wool filler, this fragment is glued to the embedment depth. Then the fire-retardant coating is applied to the cable, if necessary, to each cable thread, preferably, without limitation, grouping the cable threads, for the length of the area of application of the fire-retardant coating on the cable. Then a section of fire-retardant fiber is prepared, the length of which exceeds the circumference of the hole or sleeve. Then, using a fire-retardant coating, the fire-retardant coating is glued to the surface around the hole or sleeve with a bend on the cable or sleeve, if necessary, the connection is reinforced by fixing the fire-retardant fiber to the building structure using a perforated mounting tape and fasteners. Then, the fire-retardant fiber is wrapped with gluing around the cable for the length of the area of application of the fire-retardant fiber on the cable, or around the entire length of the sleeve, if necessary, the sections of fire-retardant fiber are placed with an overlap, if necessary, after wrapping the cable or sleeve, the connection is reinforced with a winding of binding wire. Then all unpainted parts of the cable penetration are coated with a fire-protective coating. Then drying is carried out for the required time, for example, without limitation, for 24 hours.

[0070] This description of the implementation of the claimed technical solution demonstrates only particular embodiments and does not limit other embodiments of the claimed technical solution, since possible other alternative embodiments of the claimed technical solution, not going beyond the scope of the information set out in this application, should be obvious to a specialist in this field of technology, having the usual qualifications, for whom the claimed technical solution is intended.

Claims (2)

A cable penetration, which is a mineral wool filler, which is filled, at least to the embedding depth, into at least two sleeves placed in an opening with a depth of at least 150 mm in a building structure, each of which is longer than the depth of the opening, wherein the filler is pre-impregnated with a fire-retardant coating; wherein the impregnated mineral wool filler is placed over the length of the section where the fire-resistant fiber is placed on the sleeve between the sleeves; wherein: each sleeve is also filled, at least to the embedding depth, with a fire-retardant sealant; the fire-retardant coating is applied to at least the length of the section where the fire-retardant coating is applied to the cable outside each sleeve; wherein at least the thickness of the fire-retardant coating layer on the cable, the length of the section where the fire-retardant coating is applied to the cable, the embedding depth, the length of the section where the fire-resistant fiber is placed on the cable are selected depending on the required fire resistance limit in accordance with the table: Fire resistance limit Thickness of the fire-protective coating layer on the cable, not less than, mm Length of the area where the fire-protective coating is applied to the cable, not less than, mm Embedding depth, not less than, mm Length of the area where the refractory fiber is placed on the sleeve EI 45 or EI 60 2.0 or 2.1 200 or 210 150 or 160 Corresponds to the length of the sleeve outside the hole outside the hole EI 90 150 or 160 EI 120 2.0 or 2.2 200 or 210 EI 150 250 or 260