So just now I was adding an extra light over my day bed it's a vintage 60 watt bulb looks like an old radio valve it even has the little glass pip on top. Anyhow as I was wiring it up two whiskas of wire touched there was barely any sound but it popped the 5 amp fuse in the plug adaptor and tripped 16 amp MCB how is this even possible even under partial short circuit conditions surely a 5 amp fuse should clear before a 16 amp MCB?
Concerning selectivity, that is all for faults of negligible impedance, so perhaps faults of not so negligible impedance behave differently?
Concerning GU10s, filaments blew much more often than standard (non-halogen) ones. CFLs seemed to go dim before failing far too soon. LEDs have been much the best - I don't think that I have had to replace one yet.
Concerning selectivity, that is all for faults of negligible impedance, so perhaps faults of not so negligible impedance behave differently?
Concerning GU10s, filaments blew much more often than standard (non-halogen) ones. CFLs seemed to go dim before failing far too soon. LEDs have been much the best - I don't think that I have had to replace one yet.