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Types of circuit fault

There are mainly three types of electrical faults .
1. Earth fault
2. Short circuit fault
3. Open circuit fault
     
1. Earth fault
It happens due to breaking of insulation of wire and conductor of wire comes in contact with ships hull or in  the contact of body /enclosure . B is point marked as shown in figure.


2. Short circuit fault
When insulation breaks at two points of same wire or two different wire then very high short circuit current flow through the circuit and it  damages the electrical loads .
C is point marked as shown in figure.

3. Open circuit fault
When conductor of wire breaks due to mechanical damages or loose connection .
A is point marked as shown in figure.

Source: Dennis T. Hall

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