V.O.E.L.C.B.

davezawadi (David Stone):

Do you mean L&N reversed Zoom? Otherwise, it never worked or would trip the VOELCB. I don't think the trip current can be anything like 500mA, because that would be useless on a slightly high Ze electrode of say 125 Ohms, giving no volts for the trip, or at least far less current. I seem to remember the coil resistance was several K Ohms, so the current might not be too far from 30mA. Anyway changing to a 30mA RCD is very cheap and easy, everything is in place for the wiring

David I need to clarify things as many are confused or making assumptions, although Andy is perfectly correct in what he said. The old electric drill is Class 2 plastic cased. The condition of the old installation may be very bad. The one next door of similar age was just hanging on by a thread, and when I moved the earthing lead (conductor) for inspection it just came away from the rod.


The drill was being used outside and that posed addition dangers to my mind or damp grass, possible flex damage etc.


The drill plug was showing inner worn cores outside its 13 Amp. plug. I rewired the plug for the owner and noticed that the two live conductors were reversed at the plug terminals. (I know that this makes no difference for a Class 2 appliance regarding safety).


The whole situation shouted "DISASTER WAITING TO HAPPEN"


Also, the lack of proper earthing/protection means that I can not add the new socket requested by drill man's wife.


z.

davezawadi (David Stone):

Do you mean L&N reversed Zoom? Otherwise, it never worked or would trip the VOELCB. I don't think the trip current can be anything like 500mA, because that would be useless on a slightly high Ze electrode of say 125 Ohms, giving no volts for the trip, or at least far less current. I seem to remember the coil resistance was several K Ohms, so the current might not be too far from 30mA. Anyway changing to a 30mA RCD is very cheap and easy, everything is in place for the wiring

David I need to clarify things as many are confused or making assumptions, although Andy is perfectly correct in what he said. The old electric drill is Class 2 plastic cased. The condition of the old installation may be very bad. The one next door of similar age was just hanging on by a thread, and when I moved the earthing lead (conductor) for inspection it just came away from the rod.


The drill was being used outside and that posed addition dangers to my mind or damp grass, possible flex damage etc.


The drill plug was showing inner worn cores outside its 13 Amp. plug. I rewired the plug for the owner and noticed that the two live conductors were reversed at the plug terminals. (I know that this makes no difference for a Class 2 appliance regarding safety).


The whole situation shouted "DISASTER WAITING TO HAPPEN"


Also, the lack of proper earthing/protection means that I can not add the new socket requested by drill man's wife.


z.