NOYAFA Electronic specializing in testing instruments and cable testers for 16 years
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NOYAFA Electronic specializing in testing instruments and cable testers for 16 years
Author: Noyafa–Cable Length Tester
Power testing equipment Power cable fault classification Power testing equipment is classified according to the constituent materials of the cable (physical properties) 1. Conductor fault (open circuit fault): As the name suggests, conductor fault is the fault of the metal conductor in the cable, which mainly refers to the core conductor. (such as copper wire, aluminum wire) and metal shielding layer (such as lead wrap, copper tape) failure. The internal subdivision also includes broken and unbroken faults in which conductor damage of the cable results in broken or unbroken conductors. The conductors include the core wire and metal shield of the cable.
A wire break fault is a special case of an open circuit fault. 2. The insulation layer in the insulation fault cable, whether it is the main insulation layer or the outer sheath insulation layer (mainly for cables of 110kV and above), is an indispensable and important part of the cable like the conductor core wire, but the phase In contrast, it is much more fragile than the conductor material. Therefore, in practice, the vast majority of cable failures are caused by poor insulation.
There are generally two kinds of faults in power cable insulation damage: leakage faults and flashover faults. Power Cable Fault Classification Power Test Instrument Shenzhen Noyafa Electronic Technology Co., Ltd.
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