Isolation switch left grounding and right grounding judging method

1. Opening direction when facing the isolation switch opening state:

The grounding switch installed on the left side is the left grounding, and the grounding switch installed on the right side is the right grounding; the above two kinds of isolating switches are only used for the busbar side or line side isolating switch, and the left or right grounding is mainly considering the site installation and Easy to operate, no special requirements;

2. The grounding switch is installed on both sides, which is double grounding. It is mainly installed in consideration of the possibility of incoming calls (power supply) such as busbar segmentation or busbar equipment (TV) on both sides of the isolation switch;

3. If there is no grounding switch on both sides, it is not grounded. It is mainly used on the busbar side (only considering the busbar as the power supply) and there are other isolation switches with grounding switch on the busbar, just as an obvious disconnection point during power failure. Isolated power supply.

Because the isolating switch and the grounding switch, whether it is cost, installation, maintenance, maintenance, increase the cost and difficulty, but also increase the possibility of failure, so in the place where the grounding wire is not very inconvenient to install, try not to consider Use an isolating switch with a grounding switch.