Installation method of residual current circuit breaker in plastic meter box:

1. Wiring of residual current protector

It is necessary to connect the power supply line to the top of the leakage protector, i.e., the power source or the inlet line is marked on the outer shell, and the outlet lines are connected below, i.e., "load" or "outlet". If the incoming line and outlet line are reversed, it will cause the protector to burn the coil or affect the connection and breaking capacity of the maintainer.

2. Installation of residual current circuit breaker

(1) the leakage protector shall be installed on the distribution board with smaller section of the inlet line or in the plastic meter box. Installed after the watt hour meter, before the fuse.

(2) the wiring of all lighting lines (including neutral lines) shall be protected by residual current circuit breaker, and the neutral line shall be insulated from the ground.

(3) should be straight device, the slope shall not exceed 5°

(4) After residual current protection device is installed in the plastic meter box, cannot remove single-phase knife switch or fuse etc.. In this way, there is a distinct disconnection point in the maintenance of the equipment; two, the knife switch or fuse provide short circuit or over load maintenance.