低烟无卤电力电缆--电缆的使用寿命由哪些因素决定?

What factors determine the service life of cables?

Author：hlyb Add Time：2016-03-21 14:25:40

The service life of the cable often depends on a variety of factors, because no matter how good the cable is, it will not bear the time and external environmental factors; So what factors determine the service life of the cable? Let's listen to the instructions of wire and cable manufacturers!

1. Chemical corrosion: if the cable is directly buried in the area with acid-base effect, the armor, lead skin or outer protective layer of the cable will often be corroded. The protective layer will be subject to chemical corrosion or electrolytic corrosion for a long time, resulting in the failure of the protective layer, the reduction of insulation and cable failure.

2. Insulation damp: this situation is also very common, which usually occurs at the cable joint in the directly buried or row pipe. For example, unqualified cable joints and joints made under humid weather conditions will cause water or steam into the joints, and water branches will be formed under the action of electric field for a long time R, which will gradually damage the insulation strength of cables and cause faults.

3. Environment and temperature: the external environment and heat source where the cable is located will also cause excessive cable temperature, insulation breakdown, and even explosion and fire.

The quality of the cable is good, but if users buy it home and don't pay attention to maintenance, its service life will be shortened. Therefore, the wire and cable manufacturers suggest that we should use the cable reasonably and correctly, and remember to give good maintenance to the cable.

Browse：

On A：Low smoke halogen-free control cable characteristics?

Next：Chromatographic analysis of cable core

Industry news

What factors determine the service life of cables?