Five-proof interlocking refers to which five-proof

The five precautions against locking refer to: preventing the circuit breaker from being mistakenly opened and closed; preventing the loaded disconnecting switch from being opened and closed; preventing the energized ground wire from being hooked up (closed); preventing the ground wire from being connected to the circuit breaker (disconnecting switch); and preventing erroneous entry into the energized intervals.

1, to prevent the load separation, close the disconnecting switch. (Circuit breaker, load switch, contactor closed state can not operate the disconnecting switch.)

2. Prevent mistakenly opening and closing circuit breakers, load switches, and contactors. (Only the operation instruction corresponding to the operating equipment can be operated on the equipment being operated.)

3. Preventing closing of circuit breakers and load switches when the grounding switch is in the closed position. (Only when the grounding switch is in the open position can you close the disconnecting switch or the handcart to get into the working position to operate the circuit breaker and load switch closure.)

4, to prevent mistakenly closing the grounding switch when energized, (only when the circuit breaker is in the open state, you can operate the disconnecting switch or the hand truck to back out from the working position to the test position, and then you can close the grounding switch.)

5, to prevent accidentally entering the charged compartment. (Only when the compartment is not energized can the door be opened to enter the compartment.)