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Bending-resistant halogen-free photovoltaic cable

A photovoltaic cable and folding-resistant technology, applied in circuits, electrical components, plastic/resin/wax insulators, etc., can solve the problems of cable insulation damage, injury, fire personnel and other problems, achieve excellent high temperature resistance performance, improve bending performance, the effect of improving flame retardant efficiency

Inactive Publication Date: 2019-03-19
WUXI XINHONGYE WIRE & CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the strength of the outer sheath of the cable is not enough, the insulation layer of the cable will be severely damaged, which will affect the service life of the entire cable, and in severe cases, cause problems such as short circuit, fire and personal injury hazards.

Method used

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  • Bending-resistant halogen-free photovoltaic cable
  • Bending-resistant halogen-free photovoltaic cable
  • Bending-resistant halogen-free photovoltaic cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~4

[0035] Embodiments 1 to 4: A bending-resistant halogen-free photovoltaic cable, the bending-resistant halogen-free photovoltaic cable includes a copper conductor 1, an inner insulating layer 2 and an outer sheath layer 3 coated on the outer surface of the copper conductor 1, The copper conductor 1 is formed by twisting several copper wires 101, and the outer sheath layer 3 is covered on the outer surface of the inner insulating layer 2;

[0036] The outer sheath layer 3 is composed of the following components by weight: as shown in Table 1:

[0037] Table 1

[0038]

Embodiment 1

[0039] The antioxidant of embodiment 1 is antioxidant 1010, the antioxidant of embodiment 2 is antioxidant 245, the antioxidant of embodiment 3 is distearyl thiodipropionate, the antioxidant of embodiment 4 The agent is antioxidant 168;

[0040] The content of vinyl acetate in the above-mentioned ethylene-vinyl acetate copolymer is 16-40%.

[0041] The above-mentioned SEBS is a linear three-block copolymer with polystyrene as the terminal block and ethylene-butylene copolymer as the middle elastic block.

[0042] The copper wire 101 is a type 5 annealed copper wire or a type 6 annealed copper wire, and the shape of the protrusion 4 is a semicircle.

[0043] The above-mentioned outer sheath layer 3 is obtained through the following steps:

[0044] Step 1. Add 25~40 parts of SEBS, 10~20 parts of styrene-based thermoplastic elastomer, 4~8 parts of polystyrene, 2~5 parts of hexamethylene diisocyanate, and 1~2 parts of ethyl thioglycolate into high-speed mixing In the extruder, ...

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Abstract

The invention discloses a bending-resistant halogen-free photovoltaic cable which comprises a copper conductor, an inner insulative layer coating the outer surface of the copper conductor and an outerjacket layer. The copper conductor is formed by twisting a plurality of copper wires. The outer jacket layer coats the outer surface of the inner insulative layer and is prepared from the following components in parts by weight: SEBS, a styrene class thermoplastic elastomer, polystyrene, hexamethylene diisocyanate, ethyl thioglycolate, ammonium melamine phosphate, hydromagnesite, melamine pyrophosphate, polyphenyl ether, a vinyl-vinyl acetate copolymer, hydroxyl silicone oil, oleamide, an antioxidant, pvdf and 4-oxo isophorone. The distortion performance of the bending-resistant halogen-freephotovoltaic cable can reach over 200 thousand times of U shaped bending. Being distorted and bent for over 100 thousand times at 180 DEG C, the cable has relatively excellent high-temperature resistance, reaches the temperature resistance level of 125 DEG C, can be aged by 7 days at 158 DEG C, and the mechanical property is retained over 80%.

Description

technical field [0001] The invention relates to a photovoltaic cable, in particular to a bending-resistant halogen-free photovoltaic cable. Background technique [0002] Photovoltaic technology will become one of the green energy technologies in the future. People usually do not regard the wiring system connecting photovoltaic modules and inverters as a key component. However, not using special cables for photovoltaic applications will affect the use of the entire system life. [0003] Photovoltaic systems often work under harsh environmental conditions, such as high temperature and ultraviolet radiation. On sunny days, the site temperature of photovoltaic systems can reach as high as 100°C. At present, the various materials we can use are PVC, rubber, TPE and high-quality cross-link materials, however, rubber cables are rated at 90°C and PVC cables are rated at 70°C, and these cables will be severely damaged when used in photovoltaic systems. affect the service life of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08L25/06C08L71/12C08L23/08C08L27/16C08K5/3492C08K5/29C08K3/26H01B3/30
CPCC08K2003/267C08L53/025C08L2201/02C08L2201/08C08L2203/202C08L2205/035H01B3/307C08L53/02C08L25/06C08L71/12C08L23/0853C08L27/16C08K5/34928C08K5/29C08K3/26
Inventor 卜晓华崔久德魏三土安夏天
Owner WUXI XINHONGYE WIRE & CABLE
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