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RCD trip times
Testing an RCD (part of a split-load CU) I found that at the rated
current (30mA) it would trip anywhere between 16-17ms to not at all (even with the meter set to the 2s range). Suspecting the RCD I swapped in another from a spare box (same make - Clipsal - but almost certainly different batch as I bought them at different times from different suppliers). However the other RCD showed much the same behaviour. Both tripped reliably at 50mA. Is this typical, or are both faulty? (Is Clipsal crap? :-) |
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