With reference to domestic electric circuits, what do the letters in the acronyms (i) RCD and (ii) MCB stand for? - Leaving Cert Physics - Question g - 2014
Question g
With reference to domestic electric circuits, what do the letters in the acronyms (i) RCD and (ii) MCB stand for?
Worked Solution & Example Answer:With reference to domestic electric circuits, what do the letters in the acronyms (i) RCD and (ii) MCB stand for? - Leaving Cert Physics - Question g - 2014
Step 1
(i) RCD
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Answer
RCD stands for Residual Current Device. This device is crucial in preventing electric shocks and electrical fires by detecting imbalance in electrical currents. When it senses any leakage current, it automatically disconnects the circuit, providing protection for users.
Step 2
(ii) MCB
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Answer
MCB stands for Miniature Circuit Breaker. It serves to protect electrical circuits from overload or short circuits. When excess current flows through the circuit, the MCB trips to cut off the electricity supply, thus safeguarding the wiring and connected appliances.
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