Electrical socket from light switch for cctv.

[ARW]

Smart arse:-)

[GMM]

My Dad used to have some bayonet plugs so he could do that. On his drill in particular as I recall. Of course in those days electrickery wasn't as complcated and dangerous as it is now......;)

[bert]

And the Elfin Safety hadn't been born.

[Andy Champ]

Not when I've measured it.

It took me a while to work out why the voltage N-L and L-E was the same, and yet there was a voltage between them. Since then I;ve been taught a little about AC...

Andy

[Lieutenant Scott]

He will be slaughtered one day, you'll see.

[Lieutenant Scott]

Maybe you oughta get better wires. A big voltage drop on neutral indicates you're using crap wiring.

[AlanD]

I particularly like this one:

[Adam Funk]

[John Rumm]

A 25W load (assuming its the only bodge like this you have done) would pass 100mA. Plenty enough to kill you, and since you have not got a RCD, and the current is not enough to open a fuse or MCB, you can be sure the power will stay on long enough to get you properly dead.

Poke your finger into its 35kV EHT supply - that is only a few mA as well...

[Lieutenant Scott]

Do you take me for some kind of pansy? Directly touching the live wire has never killed me, so 100mA certainly won't.

Anyway, that's 100mA if the voltage across me is zero. If we say it's half each, I get 120 volts, and the current is 50mA.

Yes, and 150 times more voltage than the mains. Both are important.

[Lieutenant Scott]

Anyway, going back a bit...... someone suggested the problem occurs if the earth gets disconnected. So you're trying to blame one thing for another thing happening later. That's like saying it's my fault for parking my car on a double yellow line because then the guy doing 150mph through the built up area wouldn't have hit it.

[Dave Liquorice]

Bzinga.

[Lieutenant Scott]

Which is WHY I have put MCBs in on those circuits. Understand?

[Java Jive]

No, a closer analogy would be reversing out of your drive instead of reversing into it - it's making some sort of accident more likely, like the one that killed the son of the neighbours of the keyboard player in my ex wife's band.

The history of mankind generally and such aspects as air and rail travel particularly demonstrate that sooner or later the rare conditions required to create an accident occur in combination to cause one.

By abus>

earth gets disconnected. So you're trying to blame one thing for another thing happening later. That's like saying it's my fault for parking my car on a double yellow line because then the guy doing 150mph through the built up area wouldn't have hit it.

[polygonum]

How do you get any current with a zero PD?

[John Rumm]

The laws of physics bend around him...

[The Natural Philosopher]

very easily.

Plunge a magnet into a ring

You will get current.

I challenge you to find a potential difference round the ring.. :-)

[John Williamson]

How sensitive is my meter allowed to be? If there is current flow and resistance, there *must* be voltage to drive the current through the resistance. The (Admittedly very small) voltage will appear between any two points on the ring you care to measure it at. "Ye cannae change the laws of physics".

The only exception is the ring of superconductor,which can be used to give the mildly entertaining demonstration of a ring hanging in mid air above a magnet.

[Lieutenant Scott]

You don't. That was his example. I suggested 50mA more likely, with half the PD across me.

[Lieutenant Scott]

Or creates a wormhole.