NVIC 17-14 Task 7.3.A

Maintenance and repair of electrical and electronic equipment

OICEW-B2.3 Detection of electric malfunction, location of faults and measures to prevent damage

On a vessel of at least 1,000 HP, or in a laboratory or workshop,

the candidate plans and carries out a logical procedure to detect the location of ground(s) indicated on the main switchboard.

The candidate:

1. Correctly plans for and lays out the job, in proper sequence, and incorporates all safety considerations;

2. Ensures that the logic path followed progressively eliminates or reduces possible grounding sources by:

   a. Isolating the circuit breaker panel by sequentially opening each circuit feeder;

   b. Isolating each circuit by opening each breaker in the panel until the circuit is found; and

   c. If necessary, isolating each outlet/piece of equipment;

3. Correctly identifies grounding source(s);

4. Correctly describes the actions as they are performed; and

5. Takes proper action to prevent safety and pollution violations.