XSD Cable: Share The Most Common Quality Problems in The Photovoltaic Cable Market

It is important to know that the quality of the finished photovoltaic cable will directly affect the safety of the line during use. Once the line fails to operate safely and stably, the life and economic loss caused by its failure will be immeasurable, therefore, our power workers must prevent the occurrence of cable failure from the root. We will try to minimize cable accidents and start from the smallest details to achieve the goal of safe and stable power supply.

Problems that may occur when using cables are usually caused by two main reasons: one is the use of poor quality cables, these cables have encountered great problems in the production of cables, and the other is caused by improper use or improper maintenance of cables, so what are the causes of common cable problems?

Today, XSD cable to share these points of knowledge with you, come get!

Common photovoltaic cable problems and causes analysis.

1. Unqualified structure

Insulation thickness of the thinnest point is lower than the minimum value of the standard, or the average thickness is lower than the nominal value, these problems exist and are not dealt with in a timely manner, then it will be in use in the process of the risk of breakdown.

2. Cross-linking degree does not meet the standard

The degree of cross-linking does not meet the standard, the heat resistance of the cable is not qualified to meet the working temperature requirements of 90 ℃, not to mention the allowable short circuit of 250 ℃, which leads to a significant reduction in electrical performance.

3. Surface scratches

Usually, the cable with scratches on the surface will be eliminated during the testing process, so it will not be listed, but during transportation or laying, the cable may still be scratched by foreign objects, so be sure to check the integrity of the cable insulation before use. And the life of ordinary wire and cable is so long that it has already reached its service life years. The insulation resistance of the wire itself and the center head decreases year by year and does not reach the specified standard value, and there will be quality problems.

If the skills of the center head of the PV cable are not in place during the production process, and the oxide film at the joint is not removed, or the operator's hands may be covered with oil and dust, which will stick to the core joint and thus increase the touch resistance at the joint. Long-term operation results in greater losses and increased heat dissipation, which leads to high center head temperatures and accelerated insulation degradation. In the manufacturing process of wire and cable center head, when heating the heat shrink tube, it is difficult to control the temperature and it is easy to burn the insulation material, which leads to poor contact surface. Under the influence of high current load, the high temperature at the joint will also lead to accelerate the aging of the insulation layer.

Well, today for you to share through the insulation layer to select the formal photovoltaic cable, you have Get to the point, if your side of the cable there is still do not understand the place or the intention to buy our products welcome you to leave a message at the bottom of my Division XSD cable official website, we received the message will be the first time to get in touch with you.