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Revision as of 08:06, 26 May 2007 by NT (talk | contribs) (bulb blow current surges)
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As well as switchon surges there are bulb blowing surges, which can also pop RCDs. The momentary high current amplifies the less than perfect current balancing of real world RCDs plus cable capacitance has an unequal effect on current flow, since the L-E capacitance is across 0-330v while N-E is across close to zero voltage. NT 09:06, 26 May 2007 (BST)