CN103903689A - Environment-friendly intrinsic safety type instrument cable - Google Patents
Environment-friendly intrinsic safety type instrument cable Download PDFInfo
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- CN103903689A CN103903689A CN201410079283.3A CN201410079283A CN103903689A CN 103903689 A CN103903689 A CN 103903689A CN 201410079283 A CN201410079283 A CN 201410079283A CN 103903689 A CN103903689 A CN 103903689A
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Abstract
The invention discloses an environment-friendly intrinsic safety type instrument cable which comprises a conductor, a main cable core, a branch cable core and a middle cable core. The environment-friendly intrinsic safety type instrument cable is characterized in that an insulation layer made by wrapping ceramic silicone rubber materials in an extruded mode is wrapped around the conductor in an extruded mode to form one insulation cable core, three insulation cable cores are twisted to be wrapped around a halogen-free flame-retardant wrapping tape layer and a tinned copper wire weaving layer to form the main cable core, the branch cable core is formed by wrapping a tinned copper wire weaving layer I around the insulation cable cores, the middle cable core is formed by wrapping a halogen-free flame-retardant wrapping tape layer II and a tinned copper wire weaving layer II around a pair of insulation cable cores, the main cable core, the branch cable core and the middle cable core form a cable core, and then the cable core is wrapped by a halogen-free low-smoke flame-retardant glass fiber tape total wrapping tape layer, a total shielding layer, an armor layer and an outer jacket layer made by wrapping ceramic silicone rubber materials in an extruded mode. The environment-friendly intrinsic safety type instrument cable has the high environment-friendly performance and the high fireproof performance, and also has the low-capacitance and low-inductance stable signal transmission function.
Description
Technical field
The invention belongs to electric wire field, relate to a kind of environment-friendly type intrinsic safety type instrument cable.
Background technology
The signal transmission of the current distributing system in industrial and mining enterprises such as electric power, metallurgy, chemical industry, electronic computer system, automated system and detecting instrument, instrument etc. connect with common intrinsically-safe instrument cable, substantially adopt traditional polyethylene insulation or polyvinyl chloride insulation shield type intrinsically-safe instrument cable.This cable is because adopting the polyethylene with superior electrical performances such as dielectric constant are little, dielectric loss is little, insulation resistance is large as insulating material, so cable has low electric capacity, inductance and stablizes good transmission performance.But along with some problems that are widely used of this cable also occur thereupon, it is mainly the occasion at ask for something cable with flame-retardant performance, because the insulation of this cable adopts polythene material, but polythene material is combustible material, so the flame-retardant performance of cable does not often reach requirement, the potential safety hazard while causing these occasions of cable to use increases.Adopt flame-proof polyvinyl chloride material, but because pvc material is the fire resistance material that contains halogen, occur once fire, cable is burned can produce a large amount of smog, and also has halogen-containing poisonous corrosive gas to disengage.So not only be unfavorable for the expansion of rescue work, and halogen-containing toxic gas causes serious actual bodily harm to trapped personnel.Generally there is accurate instrument and equipment the application scenario of intrinsic safety type instrument cable in addition, and these corrosive gass that contain halogen can cause serious sour corrosion to equipment, makes the performance of whole cable not reach requirement.
Summary of the invention
For overcoming above-mentioned deficiency, cable of the present invention has the dangerous situation that fire occurs to use the problem existing at some, provide one to there is high-environmental performance and high fire protecting performance, and there is the environment-friendly type intrinsic safety type instrument cable of the stabilization signal transfer function of low electric capacity, low inductance.
The solution of the present invention is as follows: a kind of environment-friendly type intrinsic safety type instrument cable, comprise conductor, master core, point core and middle core, and it is characterized in that: conductor extrudes employing ceramic silastic material outward and extrudes the insulating barrier formation insulated wire cores of making; The three stranded rear wrapped halogen-free flameproof belting layers of insulated wire cores, tincopper fuse wire braided armors form master core; Described point core is made up of the outer wrapped tincopper fuse wire braided armor I of insulated wire cores; Described center core is made up of the outer wrapped halogen-free flameproof belting layer II of a pair of insulated wire cores, tincopper fuse wire braided armor II; After core, point core and middle core formation cable core, wrapped LSOH anti-flaming glass fibre belt overall budget belt, total screen, armour and employing ceramic silastic material extrude the external sheath layer of making.
Further, described conductor adopts the 5th class flexible conductor is stranded and makes.
Further, described cable core and general belt interlayer use low smoke, zero halogen glass fiber rope to fill.
The insulating material of cable of the present invention, sheath material adopt new ceramics SiClx rubber-covered material, ensure that cable has stable signal transfer functions, superior at flame-retardant aspect of performance, at normal temperatures, possess the characteristic of silicon rubber, running into after 430 DEG C of flame combustions, the barrier layer that can form the hard similar ceramic-like of one deck, can intercept the burning of flame, so flame-retardant performance is improved, and in the time of burning, the amount of being fuming is low, disengages without the corrosive gas that contains halogen.
The auxiliary packing material of cable and band material are to adopt halogen-free flameproof glass fiber material, not only have good fire resistance, and are all not halogen-containing environment-friendly materials.The invention provides a kind of novel computer and instrument cable that there is high flame retardant, Halogen, low cigarette environmental-protecting performance and have simultaneously the signal transfer functions of the low inductance stabilization of low electric capacity.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
A kind of environment-friendly type intrinsic safety type instrument cable, comprises conductor, master core, point core 5 and middle core 6, and conductor 1 is outer to be extruded and adopt ceramic silastic material to extrude the insulating barrier 2 of making to form insulated wire cores; The three stranded rear wrapped halogen-free flameproof belting layers 3 of insulated wire cores, tincopper fuse wire braided armors 4 form master core; Described point core is made up of the outer wrapped tincopper fuse wire braided armor I of insulated wire cores; Described center core is made up of the outer wrapped halogen-free flameproof belting layer II of a pair of insulated wire cores, tincopper fuse wire braided armor II; After core, point core and middle core formation cable core, wrapped LSOH anti-flaming glass fibre belt overall budget belt 7, total screen 8, armour 9 and employing ceramic silastic material extrude the external sheath layer 10 of making.
Described conductor 1 adopts the 5th class flexible conductor is stranded to be made.Between described cable core and overall budget belt 7, use low smoke, zero halogen glass fiber rope to fill.The fire resistance of cable of the present invention reaches the burning test that GB/T19216 specifies, the experimental condition that the low smoke performance of cable specifies according to GB/T17651, its light transmittance is not less than 60%, the Halogen performance of cable is according to the experimental condition of GB/T17650, PH value is greater than 4.3, and conductance is less than 10 μ s/mm.When the mutual capacitance 1kHZ of cable, be not more than 90pF/m, inductance resistance ratio is not more than 35 μ H/ Ω.
Although above the specific embodiment of the present invention has been given to describe in detail and explanation; but what should indicate is; we can carry out various equivalences to above-mentioned execution mode according to conception of the present invention and change and amendment; when its function producing does not exceed spiritual that specification and accompanying drawing contain yet, all should be within protection scope of the present invention.
Claims (3)
1. an environment-friendly type intrinsic safety type instrument cable, comprises conductor, master core, point core and middle core, it is characterized in that: conductor extrudes employing ceramic silastic material outward and extrudes the insulating barrier formation insulated wire cores of making; The three stranded rear wrapped halogen-free flameproof belting layers of insulated wire cores, tincopper fuse wire braided armors form master core; Described point core is made up of the outer wrapped tincopper fuse wire braided armor I of insulated wire cores; Described center core is made up of the outer wrapped halogen-free flameproof belting layer II of a pair of insulated wire cores, tincopper fuse wire braided armor II; After core, point core and middle core formation cable core, wrapped LSOH anti-flaming glass fibre belt overall budget belt, total screen, armour and employing ceramic silastic material extrude the external sheath layer of making.
2. the novel intrinsic safety type instrument cable of one according to claim 1, is characterized in that, described conductor adopts the 5th class flexible conductor is stranded to be made.
3. the novel intrinsic safety type instrument cable of one according to claim 1, is characterized in that, described cable core and general belt interlayer use low smoke, zero halogen glass fiber rope to fill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410079283.3A CN103903689A (en) | 2014-03-06 | 2014-03-06 | Environment-friendly intrinsic safety type instrument cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410079283.3A CN103903689A (en) | 2014-03-06 | 2014-03-06 | Environment-friendly intrinsic safety type instrument cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103903689A true CN103903689A (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410079283.3A Pending CN103903689A (en) | 2014-03-06 | 2014-03-06 | Environment-friendly intrinsic safety type instrument cable |
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| CN (1) | CN103903689A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111755163A (en) * | 2020-07-07 | 2020-10-09 | 安徽徽宁电器仪表集团有限公司 | High-temperature-resistant 1000 ℃ electric wire and preparation method thereof |
| CN112397241A (en) * | 2020-11-18 | 2021-02-23 | 安徽鸿海电缆有限公司 | Pottery silicon rubber insulation environment-friendly this ampere of instrument cable |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2070493U (en) * | 1990-06-27 | 1991-01-30 | 乐清县自动化仪表五厂 | Twisted pair shielding control flexible wire for intrinsic safety |
| JP4814416B2 (en) * | 2000-08-31 | 2011-11-16 | 東京瓦斯株式会社 | Cable for hanging the observation device in the cryostat |
| CN202796133U (en) * | 2012-08-24 | 2013-03-13 | 安徽华星电缆集团有限公司 | Novel intrinsic safety type instrument cable |
| CN103426532A (en) * | 2012-05-17 | 2013-12-04 | 扬州苏能电缆有限公司 | Low-attenuation static-electricity-resisting intrinsic safety explosion-proof signal cable |
| CN203366776U (en) * | 2013-04-10 | 2013-12-25 | 江苏远红电缆有限公司 | Novel high temperature resistant control cable |
| CN203787127U (en) * | 2014-03-06 | 2014-08-20 | 安徽华星电缆集团有限公司 | Environment-friendly intrinsic safety type instrument cable |
-
2014
- 2014-03-06 CN CN201410079283.3A patent/CN103903689A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2070493U (en) * | 1990-06-27 | 1991-01-30 | 乐清县自动化仪表五厂 | Twisted pair shielding control flexible wire for intrinsic safety |
| JP4814416B2 (en) * | 2000-08-31 | 2011-11-16 | 東京瓦斯株式会社 | Cable for hanging the observation device in the cryostat |
| CN103426532A (en) * | 2012-05-17 | 2013-12-04 | 扬州苏能电缆有限公司 | Low-attenuation static-electricity-resisting intrinsic safety explosion-proof signal cable |
| CN202796133U (en) * | 2012-08-24 | 2013-03-13 | 安徽华星电缆集团有限公司 | Novel intrinsic safety type instrument cable |
| CN203366776U (en) * | 2013-04-10 | 2013-12-25 | 江苏远红电缆有限公司 | Novel high temperature resistant control cable |
| CN203787127U (en) * | 2014-03-06 | 2014-08-20 | 安徽华星电缆集团有限公司 | Environment-friendly intrinsic safety type instrument cable |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111755163A (en) * | 2020-07-07 | 2020-10-09 | 安徽徽宁电器仪表集团有限公司 | High-temperature-resistant 1000 ℃ electric wire and preparation method thereof |
| CN112397241A (en) * | 2020-11-18 | 2021-02-23 | 安徽鸿海电缆有限公司 | Pottery silicon rubber insulation environment-friendly this ampere of instrument cable |
| CN112397241B (en) * | 2020-11-18 | 2022-03-01 | 安徽鸿海电缆有限公司 | Pottery silicon rubber insulation environment-friendly this ampere of instrument cable |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20140702 |