Is the cable insulation thicker the better?

Is the cable insulation thicker the better? This is actually a misunderstanding
 

Many friends may think that the thicker the cable insulation, the better the insulation performance, and the more durable, the better the quality. In fact, this kind of thinking is taken for granted and there is a misunderstanding.

This is because the insulation performance of the cable depends on the technical indicators. The country has strict technical standards for cables. Compared with the thickness of the cable specified by the national standard, it is needless to say that even if it is thicker, as long as it exceeds the specified value, it is also a substandard cable.

When the cable insulation thickness exceeds the standard, the performance of the cable will be affected, such as the service life will be greatly shortened. This is because when the cable is laid and put into use, it will be continuously energized, and heat will continue to be generated during the energization process. If the cable insulation thickness exceeds the standard, although the insulation seems better, the consequence is that the heat is difficult to dissipate. As time accumulates, heat accumulates more and more, which of course will affect the normal service life of the cable.
 

When the situation is serious, it may even cause a short circuit, a power outage, and cause greater damage.

The so-called too much is not enough, the cable insulation thickness meets the national standard is the best.