Something interesting happened this morning.
I had a severe short caused by a cable being dammaged on my laptop power supply (it was squashed by a filing cabinate drawer)..
Simple 2 core cable, and due to the type of flooring there was obviously no leakage to ground so the RCD wasn't activated. (It was squashed between a plastic foot and plastic flooring so was fully insulated and there was no ground cable to cause a ground fault)
Noticed a slight burning smell and my desktop computer, printer etc went off as there was no power at the socket the 20amp MCB on the panel tripped out.
Worryingly or interestingly, im not sure which but the 3amp fuse in the plug was still in perfect working order!!!
Dud fuse? or just slow blowing?
Seems very inadequate protection on a 35 amp ring!!!
