Answer to Question #291080 in Electrical Engineering for jay

Question

A. There are specific tests that must be performed at the end of an installation State the purpose for performing each of the following tests:

 i. Polarity test ii. Earth continuity test iii. Insulation resistance test

Answer 1

i. Polarity test is performed to establish the correctness of electrical connections.

ii. Earth continuity test is performed to ensure that electrical equipment is properly earthed and/or grounded to avoid the risk of electrical shock and electrical failures.

iii. Insulation resistance test is performed to ensure that the insulation of conductors is safe for living organisms and the functions of the equipment.