Electrical earth faults

Question 1

State four different causes of Earth faults

Answer 1

1. dampness and moisture ingress
2. mechanical damage
3. dirt
4. humidity
5. temperature

Question 2

Methods of Earth fault tracing

Answer 2

1. elimination methord

2. half split

Question 3

Explain the meaning of the term Earth fault

Answer 3

It is a single break in insulation with a conductor touches and metal enclosure or ship’s hull. And it is undesirable because current is now leaking and the equipment will degrade. If you get a another haha on another line then on this will cause a trip.