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Plastic insulated cold-resistant environmental protection cable

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Plastic insulated cold-resistant environmental protection cable

  • 塑料绝缘耐寒环保电缆
  • Category: Cold-resistant cable

  • hit count:
  • Release Date: 2018/05/31
  • Online Inquiry
Detailed introduction

河南环保电缆厂家

Voltage level

UO / U is: 0.6 / 1kV

Implementation standards

use

It is suitable for high-rise buildings, hospitals, theaters, power stations, subways, tunnels, petrochemicals and other fixed laying occasions with special requirements of flame retardant, low toxicity, low smoke and low temperature.


1 Overview

Due to the long-term temperature of winter temperature in northern China, it is generally around -30 ° C to -40 ° C, and the coldest extreme temperature is -45 ° C to -50 ° C. In response to this situation,

Ordinary PVC sheathed cables cannot meet the requirements for laying and running in such a low temperature environment. Almost all sheaths have cracked and the cables cannot be used. Special low temperature resistant cables such as polyurethane sheathed cables, silicone rubber sheathed cables, Although polyethylene sheathed cable has good low temperature resistance, due to its high price and complicated processing technology, users and production plants are discouraged and the market competitiveness is not high. Therefore, it is urgent to provide a plastic insulated cold-resistant cable with good price and excellent performance.

In order to meet the requirements of the domestic market for cold-resistant cables, our company has successfully developed plastic insulated cold-resistant cables with a wide range of applications. Various projects in northeast China, Inner Mongolia, Xinjiang, and the Qinghai-Tibet Plateau can be used, and the application prospects are broad. At the same time, it has also added new economic growth points and market competitiveness for enterprises.

Among the insulating materials, the first type of material is ordinary PVC insulating material, and the low temperature reaches -15 ° C. The second type of material, cross-linked polyethylene insulation, has excellent low temperature performance, and its low temperature impact embrittlement temperature can reach -76 ° C. The third type of material, TPE, is a new type of thermoplastic elastomer. Its low temperature impact embrittlement temperature is -60 ° C.

In the sheath material, we all use TPE material and PVC material which can reach -50 ℃ at low temperature.

The key performance of this product is the low temperature and cold resistance. After the finished cable sheath is verified by cold bending, low temperature tensile and cold shock tests at -50 ℃, it proves that the cable product developed can meet the test requirements specified by the enterprise standard.

Cold-resistant cable has excellent cold-resistant performance, and can be installed and used normally in cold conditions in winter. Even under the influence of external forces in the ultra-low temperature state, the outer sheath of the cable still has good physical and mechanical, electrical, and aging resistance, and will not crack, which greatly improves the safety and service life of the cable.

The general properties of the cable, such as electrical and mechanical properties, fully meet the requirements of national standards; its special performance indicators: under the corresponding rated low temperature conditions (-40 ° C, -45 ° C, and -50 ° C), the low temperature winding test does not crack, and the temperature is low The tensile test elongation is at least 20%, and the low temperature impact test does not crack.

2. Uses:

It is suitable for high-rise buildings, hospitals, theaters, power stations, subways, tunnels, petrochemicals and other fixed laying occasions with special requirements of flame retardant, low toxicity, low smoke and low temperature.

3. Working conditions:

3.1 The rated voltage UO / U is: 0.6 / 1kV.

3.2 Long-term allowable working temperature of cable conductor:

3.2.1

Cold-resistant cables with PVC insulation and thermoplastic elastomer insulation:

3.2.1.1 The longest allowable working temperature of cable conductor is 70 ℃;

3.2.1.1 The maximum temperature of the cable conductor during a short circuit (maximum duration not exceeding 5s) shall not exceed 160 ° C.

3.2.2 Cold-resistant cable with XLPE insulation:

3.2.2.1 The longest allowed working temperature of cable conductor is 90 ℃;

3.2.2.2 During short circuit (maximum duration does not exceed 5s), the maximum temperature of the cable conductor does not exceed 250 ° C.

3.3

Lowest temperature allowed for laying and running:

3.3.1 Cold-resistant cable with PVC sheath:

3.3.1.1 The ambient temperature when laying the cable is not lower than -15 ℃;

3.3.1.2 The temperature for long-term operation of the cable in outdoor environment is -40 ℃ ~ + 50 ℃.

3.3.2 Cold-resistant cable with elastomer sheath:

3.3.2.1 Cold-resistant cables with cross-linked polyethylene insulation and elastomer insulation The ambient temperature when laying cables is not lower than -40 ° C;

3.3.2.2 PVC insulated cold-resistant cable, the ambient temperature when laying the cable is not lower than -15 ℃.

3.3.2.3 The cable can be used for a long time in the outdoor environment

The temperature is -50 ° C to + 50 ° C.


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Keywords: environmental protection cable manufacturer , Henan environmental protection cable , Zhengzhou environmental protection cable manufacturer

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