Is RCD really necessary for House ??? | Residual Current Device Working. Is RCD really necessary for House ??? | Residual Current Device Working
Residual Current Device (RCD) also know as Residual Current Circuit Breaker (RCCB)is a differential current sensing device used to protect house hold appliances and humans in case of earth leakage fault.
Earth leakage arising due to cable insulation failure, accidental touch by humans, etc. cannot be detected by MCB (Miniature Circuit Breaker). It can only be detected by RCD.
Any small change in the current in the order of few milli-amperes on account of leakage, would trigger the RCCB/RCD to completely cut-off the mains circuit (including neutral connection) and hence provides complete electrical protection along with MCB to human beings and the equipment.
It is recommended to have RCD installed at home for additional safety of human lives.
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