Do you know the function of Residual Current Circuit Breaker (RCCB ) or ELCB . It is main function is Protect human Life from the electrical shock and earth faults in the wiring .RCCB is a current sensing device it is always measure phase and neutral current. It should be same in the normal condition. If it is defendant nearly 30 mA. It should Be off withing 100 ms. Plug Your RCCB tester and turn on the switch. If off Your RCCB, Your RCCB working Properly. If Not off or Bulb is continuously Glowing Your house wiring has a problem. Please contact Your Technician. If have any problem Please comment. like may video Please subscribe my channel. thank you.
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