Code of practice in regard to which conductors must be disconnected after the ELR(earth leakage relays)has operated

Answer 1

The following conductors should be disconnected after the ELR has operated:

1. The phase conductor(s) that caused the imbalance leading to the operation of the ELR.
2. The neutral conductor, if it is connected to the same circuit as the phase conductor(s) mentioned above.
3. Any other phase or neutral conductors that are part of the same circuit and could potentially pose a danger if left connected.

It is important to ensure that all relevant conductors are disconnected promptly to prevent any further potential risks of electrical shock or fire hazards. Regular maintenance and testing of ELRs and associated circuits are essential to ensure their proper functioning and adherence to safety standards.