QUOTE(boonwuilow @ May 9 2016, 06:59 PM)
That is actually good u know, having a sensitive ELCB, that will protect your household electrical appliances from getting fried (including your precious PC).
Still remember my neighbor ELCB are not sensitive, as a result 1 lightning took out almost all of their electrical appliances.
http://electrical-engineering-portal.com/w...rent-device-rcdHi Boon,... if it is too sensitive, I regard it as an overkill. It will not be protecting our equipment against overcurrent conditions and voltage surges anymore, it will instead contribute two undesired effects, namely :-
1) Unreasonably tripping the mains supply and causing us inconvenience to go reset it at the DB position.
2) Compromising certain functions oi the house when the trip occurs unnecessarily, eg spoiling food in the fridge, removing CCTV Security, etc,....
Hence, I believe it is more preferred to have an ELCB that trips ONLY upon ACTUAL 'danger' conditions, and not on all possibly 'danger' conditions.