What causes low voltage power cable aging?

PVC insulated and sheathed low voltage power cable aging has a certain safety risks, for example the common used 12 gauge low voltage wire in many applications, so what are the causes of low voltage power cable aging, JZD Cable explains for you now and will spend you 5 minutes. 

1. External damage

According to the operation analysis in recent years, quite a lot of PVC insulated and sheated low voltage power cable, obstruction is caused by mechanical damage, the 12 gauge low voltage wire not excluded.

2. Long-term over-load operation of low voltage power cable 

I remind you that in overloaded operation, the thermal effect of the current will certainly lead to heat in the conductor when the load electricity flows through the low voltage power cable. Meanwhile, the skin effect of the charge and the vortex effect of the steel armor will produce additional heat, which will increase the temperature of the PVC insulated and sheathed low voltage power cable including the 12 gauge low voltage wire. 

3. Insulation is damp

This kind of environment is also common.  For example: unqualified PVC insulated and sheated low voltage power cable production and in humid climate conditions, will make its water or mixed with water vapor, over a long time in the electric field under the action of the formation of water branches, hanging down to interfere with the insulation of 12 gauge low voltage wire.

4. Chemical decay 

Low voltage power cable directly buried in the acid and alkali effect of the area, usually will cause the cable armour, lead skin or outer protective layer is corrupt, the cover layer due to long-term exposure to chemical corruption or electrolytic corruption, resulting in the failure of the cover layer, low insulation, will also lead to PVC insulated sheathed low voltage power cable obstruction.

5. Environment and temperature 

The external environment and heat source of the 12 gauge low voltage wire will also cause the cable temperature to be too high, insulation breakdown, resulting in explosion.

Remind you, the above low voltage power cable including 12 gauge low voltage wire aging reasons, usually should pay more attention to avoid wire aging caused by safety problems.