Originally Posted by PN
I was not implying a delicate little piece of wire the thickness of a greasy hair but a current limiting device. By CLD I am implying a weak link somewhere in the circuit that will ultimately kill the circuit. The 15.24mm nail is most likely the last thing to fail.
Hopefully, I'm not the only person who just a little concerned by the unsafe practices mentioned here.
Put the point on the cable, hammer it and blow the fuse. You can, if you are careful, do it without insulation. Done it many times
Why would you do that?
The Earth lead on appliances has the same effect. The Earth lead provides with is effectively a short circuit from the metal case to ground, so in the event of the case becoming live the current rises towards infinity and blows the fuse.
Melchett01
Wah!