How to judge the quality of TUV 4mm² solar cable

With the rapid development of the photovoltaic industry, more and more photovoltaic manufacturers are flooding into the market, but the quality of solar cables on the market is uneven. We will summarize some tips for judging the quality of solar cables.

The quality of the cable can be judged from the following aspects

1. Look at the internal copper core wire. The diameter of the good wire copper wire meets the requirements, the material is good, and it has a certain degree of flexibility. If the surface layer is scraped off or the true color of the copper can be seen on the cross section, the copper wire has no rust on the surface.

2. See if the actual length conforms to the marked length

3. Check whether the manufacturer has a quality system certificate such as TUV and other professional certificates.

4. To test the hand feel, you can take a sample and bend it repeatedly. It has soft hand feel, strong fatigue resistance, high elasticity of plastic or rubber, and no cracks on the wire insulator. Meeting the above conditions means that the quality of the cable is very good.

5. Looking at the price, because the production cost of fake and inferior cables is low, some unqualified cable manufacturers often sell them at low prices, making people fooled.