Explain the function of ELCB and ICDP switch. List two specifications of each.

Explain the function of ELCB and ICDP switch. List two specifications of each.  
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1 Answer

Answer :

i) Function of ELCB- (Earth Leakage Circuit Breaker) 

An Earth Leakage Circuit Breaker (ELCB) is a device used to directly detect currents leaking to earth from an installation and cut the power and avoid the person from getting shock. 

OR

At the time of earth fault cut the power supply.

The standard specifications of ELCB available in the market:

1. There are three categories as per the sensitivity :’ B’ class ELCB for residential, ‘C’ Class ELCB for commercial and ‘D’ class ELCB for industrial.

2. The ELCB are available in 30 mA,100 mA, 300 mA, 500 mA and 1000 mA

3. The low sensitivity ELCB are used for electrical machine the rating is in between the 3A to 10 A

ii) ICDP : ICDP means Iron clad Double pole. Its function is for cut off operation of single phase supply.

The standard specifications of ICDP available in the market:

1. The ICDP are available in single phase, 16A, 32A, 240 volts

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