Electric shock

[pevvers]

LOL whoops I probably should have checked the name first.

It's not so much the mistake, it's the fact that you've called him "Jerk off"!!

 

[pushrod]

I bet Kirchoff is turning in his grave now...

and that Kirchhoff guy won't be too pleased either The original made me laugh though

 

[pevvers]

and that Kirchhoff guy won't be too pleased either The original made me laugh though

Nice spot mate, it's been a while since I've been at college!!

 

[pushrod]

Nice spot mate, it's been a while since I've been at college!!

I reckon his university rivals probably did call him "jerk-off" and NovusSparkus has inside information

 

[pevvers]

I reckon his university rivals probably did call him "jerk-off" and NovusSparkus has inside information

Maybe, maybe... But we shall never know!

 

[Des 56]

If the generated supplied power is via two insulated conductors(as they are)where lies the fault path to fry those testicles ?

It exists only because of earth connections made deliberately or accidentally

If the supply was kept well insulated from terra firma,no earth fault could exist

The possibility of the double fault problem is a main reason for making that earth shock hassard available to us,without the double fault, the shock hassard (live neutral excepted)would not exist

 

[Jabbajaws]

Thanks for all your input everyone. Things seem alot clearer...

 

[Jim The Fish]

We earth fittings to provide a fault path which is low enough to create a high fault current needed to operate the protective device.

Standing on a carpet or not, if you touch live some current will flow, enough to kill maybe not but then again maybe.
Now can we guarantee that everyone remains fully insulated all the time - no, so we need to provide an alternative to disconnect the supply.

I can second that, I managed to inadvertently re-energize a cooker circuit whilst replacing the cooker switch, i was wearing well insulated work boots and had one hand on the underside of a wooden stair case (hardly a decent return path!) when i grabbed hold of the 10 mm t&e supplying the cooker and promptly ended up on my sorry arse. Luckily no damage done, well not physical any how! But just proves that current will find way its way home even through the highest resistance paths.

 

[Jabbajaws]

This was my theory all along with the 'hold on' effect, where the earth return is completed and the 'throw off' effect where like with yourself, you were thrown because the live conductor was at 230V, you were at 0V, and there was no where for the current to go so it threw you off.

That's my theory anyway... Please tell me if im wrong...

 

[Jim The Fish]

Well i'm not sure if i was thrown off it exactly, my theory is that i didn't take enough current to lock me up so i was still able to let go but then when i did let go i just dropped to floor, it happened so quick and was such a shock ('cuse the pun) i don't really know what the hell happened all i know is that i've never felt anything that strong before, as there was no RCD on the board i have no idea what sort of current i was pulling (well it was defiantly less than 40A, thankfully), i'll rig up an ammeter next time i change the switch LOL