OICEW Task 7.3.A

Detect location of grounds

MMA Method

In order to satisfy NVIC 17-14 Task 7.3.A , MMA students must:

NVIC Method

See NVIC method.

STCW Competence Knowledge, Understanding, and Proficiency

Maintenance and repair of electrical and electronic equipment

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

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.


All The assessment is required for all OICEW endorsements regardless of any limitations for propulsion mode and/or vessel equipment.

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.