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One RCD test per RCD, not per circuitOne RCD, five circuits. How many tests?
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The question at the end: One RCD, five circuits. How many tests? The answer is in the notes below.
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You are testing the RCD, not the circuit. On a split-load board, one RCD may protect four or five circuits: test it once, from any one of them, and the result applies to all the circuits it protects. On an RCBO board, every RCBO is its own test.
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- 18th Edition
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