Isolated discharge gap, also known as ground pole protector, equipotential connector, voltage equalizer, etc., can be used for rail transit system in the overhead and ground inter-area overhead ground line lightning protection and grounding, isolation of stray currents to the outside world at the same time for the lightning impulse current to provide a channel to the ground to discharge, to avoid stray current corrosion of structural reinforcement of bridges and strut foundations; usually installed in the strand of the side of the contact network strut, the cable bracket or on the ground, can beIt can work stably for a long time in all kinds of harsh natural environments and frequent vibration environments.
Isolated discharge gap can be applied in the hazardous areas of 1 and 2 zones such as petrochemical industry, etc. It can effectively protect the insulating parts of oil and gas transmission pipelines from damage of transient and transient over-voltage, avoiding system failure, shutdown or even pipeline leakage, and preventing the sensitive insulating flanges from spark discharges. It can realize lightning protection equipotential connection and safely release the overvoltage, so as to ensure the normal operation of the pipeline.