一、产品简介  Brief introduction

光伏电缆的特性是由其电缆专用绝缘料和护套料决定的，经过辐照加速器辐照以后，电缆料的分子结构会发生改变，从而提供其个方面的性能。抗机械载荷实际上，在安装和维护期间,电缆可在屋顶结构的锐边上布线，同时电缆须承受压力、弯折、张力、交叉拉伸载荷及强力冲击。如果电缆护套强度不够，则电缆绝缘层将会受到严重损坏，从而影响整个电缆的使用寿命，或者导致短路、火灾和人员伤害危险等问题的出现。

The characteristics of photovoltaic cable are determined by its special insulating material and sheath material for cable. After irradiation by irradiation accelerator, the molecular structure of cable material will change, so as to provide its performance in all aspects. In fact, during installation and maintenance, the cable can be routed on the sharp edge of the roof structure, and the cable must withstand pressure, bending, tension, cross tensile load and strong impact. If the strength of the cable sheath is not enough, the cable insulation will be seriously damaged, which will affect the service life of the whole cable, or lead to problems such as short circuit, fire and personal injury.

二、主要性能 Main performance

1. 直流电阻 成品电缆20℃时导电线芯直流电阻不大于5.09Ω/km。
2. 浸水电压试验 成品电缆(20m)在(20±5)℃水中浸入时间1h后经5min电压试验(交流6.5kV或直流15kV)不击穿。
3. 长期耐直流电压 样品长5m，放入(85±2)℃的含3%氯化钠(NaCl)的蒸馏水中(240±2)h，两端露出水面30cm。线芯与水间加直流0.9kV电压(导电线芯接正极，水接负极)。取出试样后进行浸水电压试验，试验电压为交流1kV，要求不击穿。
4. 绝缘电阻 成品电缆20℃时绝缘电阻不小于1014Ω·cm， 成品电缆90℃时绝缘电阻不小于1011Ω·cm。
5. 护套表面电阻 成品电缆护套表面电阻应不小于109Ω。

1. DC resistance
When the finished cable is 20 ℃, the DC resistance of conductor core shall not be greater than 5.09 Ω / km.

2. Immersion voltage test
The finished cable (20m) will not break down after being immersed in water at (20 ± 5) ℃ for 1H and subjected to voltage test for 5min (AC 6.5kv or DC 15kV).

3. Long term DC withstand voltage
The sample is 5m long, put it into distilled water containing 3% sodium chloride (NaCl) at (85 ± 2) ℃ for (240 ± 2) h, and both ends are exposed to the water surface for 30cm. A DC voltage of 0.9kv is applied between the wire core and the water (the conductive wire core is connected to the positive pole and the water is connected to the negative pole). After taking out the sample, conduct the immersion voltage test. The test voltage is AC 1KV. It is required that there is no breakdown.

4. Insulation resistance
The insulation resistance of finished cable shall not be less than 1014 Ω· cm at 20 ℃,
The insulation resistance of finished cable at 90 ℃ shall not be less than 1011 Ω· cm.

5. Sheath surface resistance
The surface resistance of finished cable sheath shall not be less than 109 Ω.

三、使用特性 Usage characteristics

PV1-F光伏电缆具有优越的防紫外线、耐热、耐寒、耐紫外线照射、耐臭氧、耐水解、耐酸、耐盐的腐蚀能力，优越的全天候能力和耐磨损能力。
Pv1-f photovoltaic cable has superior anti ultraviolet, heat resistance, cold resistance, UV radiation resistance, ozone resistance, hydrolysis resistance, acid resistance, salt resistance, superior all-weather ability and wear resistance.

四、电缆的型号、名称 Model and name of cable