What Are The Hazards Of Cable Aging?

1. Insulation damped

This situation is very common, usually occurs in the underground cable or exhaust pipe joint.

2. Chemical corrosion

The role of cable buried directly in the field of acid and alkali is often caused by long-term exposure to chemical substances or electric corrosion, which leads to the corrosion of armored cables, lead sheets or outer sheaths, and corrosion resistant protective layers. As a result, the failure in the protective layer and the reduction of insulation will lead to cable failure.

3. Long term overload

Overload operation, due to the current, the thermal effect of the load current through the conductor cable will inevitably lead to fever, while eddy current loss and skin effect charge steel armor, dielectric loss at first glance will produce additional heat dissipation, thus making the cable temperature. Long term overload operation, high temperature will accelerate insulation aging and insulation material breakdown. Especially in the hot summer, the temperature rise of the cable often leads to weakness and cable insulation breakdown, so the cable failure is particularly high in summer.

4. Cable joint failure

The cable of the cable connector is a very weak link, and frequent cable connector failures are caused by directly negligent workers (poor construction). In the production process of cable connectors, construction workers crimp the connectors. If there are loose connectors, insufficient heating and other original nets, the cable insulation layer will be caused to reduce the head and cause accidents.