CN201465640U - A heating and deicing cable - Google Patents

Abstract

The utility model discloses a heating and deicing cable, which belongs to the field of power transmission and transformation lines. It includes a cable core and an insulating layer covering the cable core, the insulating layer is covered with a heat insulating layer, and the heat insulating layer is covered with a heating layer. The utility model has a simple structure, and a silicon rubber heating layer is arranged outside the cable core. In freezing and rainy weather, the silicon rubber layer heats up and directly melts the ice and snow falling on the surface of the cable, without forming a thick ice layer on the cable and affecting the circuit. normal use. There is an insulating layer between the heating layer and the cable core, so the heating layer does not affect the normal operation of the cable core when it is working. Compared with the prior art, the deicing mechanism of the utility model is integrated with the cable, and the installation is simple. In the icy and snowy weather, the ice and snow can be automatically removed without manual monitoring, and the utility model is convenient to use.

Description

A heating and deicing cable

technical field

The utility model belongs to the field of power transmission and transformation lines, in particular to a cable.

Background technique

At present, when freezing rain occurs in cold areas, the cables are prone to freezing and accumulating ice because there is no heating device. When it is light, flashover and tripping will occur, and in severe cases, hardware and insulators will be damaged, cables, poles, and iron towers will be folded upside down and broken due to ice accumulation, causing major power grid accidents. At the beginning of 2008, the ice damage occurred in the south of my country caused serious damage to many transmission lines and caused huge economic losses. Removing the ice layer on the surface of the cable in time is an important means to ensure the safe operation of the transmission line. At present, one kind of cable deicing is manual operation, that is, workers climb to the high altitude to knock off the ice accumulated on the cable. The disadvantages are low work efficiency, high labor intensity, and dangerous operation; As described in the utility model patent with the announcement number "CN201171151Y" and the name "intelligent cable deicer", this device is more convenient and safer than manual operation, but its disadvantage is that the structure is complicated; The cable is equipped with a deicing device, as described in the utility model patent with the announcement number "CN201260057Y" and the name "Icing and deicing device for overhead wires". However, this device needs to set up a deicing wire on the existing overhead wire, which is troublesome to operate.

Utility model content

The technical problem to be solved by the utility model is that the structure of the existing cable deicing device is complex and the operation is cumbersome, and a heating deicing cable with a simple structure and simple operation is provided.

The technical scheme of the utility model is realized by following method:

A heating deicing cable comprises a cable core and an insulating layer covering the cable core, the insulating layer is covered with a heat insulating layer, and the heat insulating layer is covered with a heating layer.

An armored metal layer is arranged on the outside of the heating layer.

The heating layer is a silicone rubber heating layer.

The utility model has a simple structure, and a silicon rubber heating layer is arranged outside the cable core. In freezing and rainy weather, the silicon rubber layer heats up and directly melts the ice and snow falling on the surface of the cable, without forming a thick ice layer on the cable and affecting the circuit. normal use. There is an insulating layer between the heating layer and the cable core, so the heating layer does not affect the normal operation of the cable core when it is working. After adding the armored metal layer, the strength of the cable is enhanced, and it is very beneficial to resist low-frequency interference. The lightning protection capability of the cable can also be improved by properly grounding the armor layer. Compared with the prior art, the deicing mechanism of the utility model is integrated with the cable, and the installation is simple. In the icy and snowy weather, the ice and snow can be automatically removed without manual monitoring, and the utility model is convenient to use.

Description of drawings

Fig. 1 is the schematic diagram of the utility model embodiment 1;

Fig. 2 is a schematic diagram of Embodiment 2 of the present utility model.

Detailed ways

Example 1

As shown in Figure 1, the utility model includes a cable core 1 and an insulating layer 2 coated on the outside of the cable core 1, the insulating layer 2 is covered with a heat insulating layer 3, and the heat insulating layer 3 is covered with a heating layer 4. The heating layer 4 is a silicone rubber sheet heating layer.

In the cold season, the heating layer 4 can be made to work, and in the weather without ice and snow, the connection of the heating layer 4 and the power supply can be disconnected to save power.

Example 2

As shown in FIG. 2 , the heat-generating layer 4 is provided with an armored metal layer 5 , and other structures are the same as those in Embodiment 1. After the armored metal layer 5 is added, the strength of the cable is enhanced, and it is very beneficial to resist low-frequency interference.

Claims (3)

1. heating deicing cable comprises cable core (1) and is coated on the insulating barrier (2) of cable core (1) outside that it is characterized in that: insulating barrier (2) is coated with heat insulation layer (3), and heat insulation layer (3) is coated with heating layer (4).

2. heating deicing cable according to claim 1 is characterized in that: the outer armouring metal level (5) that is provided with of described heating layer (4).

3. heating deicing cable according to claim 2 is characterized in that: described heating layer (4) is the silicone rubber plate heating layer.

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