Q1. (a) With reference to the insulation testing of marine electrical plant:
(i). State the reason for insulation testing:
(ii). State the precautions to be observed when testing intrinsically safe equipment
(iii). Explain the procedure for insulation testing of 440 V motor.
(b). Describe the overhaul of a D.C. motor which has been subject to excessively damp condition or flooding with seawater.