what causes earth leakage?

[ExArmy]

testing a house today before I put RCD protection on it and i got 300mA earth leakage. appox 100mA from the sockets, 180mA on the downstairs lighting circuit, then 20 odd mA accross the rest of the circuits.

I had a poke around the downstairs lighting circuit, couldn't see anything obvious, did R2 tests at all points (OK), did IR test and it was in the region of 650MΩ L-N, L-E and N-E.

as for the sockets, 2 chest freezers that are older then me are the cause of 50mA between them, rest is unnacounted for?

what causes this?

 

[telectrix]

ah..... heisenberg, wasn't he an airship that burned at the stake.

 

[RogertheBodger]

ah..... heisenberg, wasn't he an airship that burned at the stake.

You're thinking of Hindenburg - its a lager

 

[telectrix]

nah, thats heineken.

 

[RogertheBodger]

nah, thats heineken.

Thought that was Heidleburg - but lets press on

 

[topquark]

It's a weekly (not monthly ... show's how often I buy it!). It was the 30th April copy.

You can see the start of it here without registering: Sign in to read: Uncertainty entangled: The limits of quantum weirdness - physics-math - 03 May 2011 - New Scientist

Suffice it to say they are postulating a theory now that means that that you can take a measurement WITHOUT the usual "observer interfernce".

 

[telectrix]

i knew i shouldn't have mentioned electrons

 

[topquark]

Hehe, I'm off to raid the fridge, treat with (even more) caution everything said later ;-)

 

[FatBob]

Hehe, I'm off to raid the fridge, treat with (even more) caution everything said later ;-)

PMSL ROFL on/off

 

[telectrix]

must be a bloody big fridge,

 

[topquark]

If anyone is interested in links with some more info, please see thread here: http://www.electriciansforums.net/chit-chat-off-topic/34815-quantum-entaglement.html#post291315

 

[Des 56]

Electrons

The Higgs bosun to you all
Dont know what it is ?


Your not on your own

 

[pushrod]

I don't even know the name of schroedinger's cat or Tel's dog !

 

[telectrix]

don't know about the cat, but the dog's name is tara.

 

[1shortcircuit]

I was only looking for info on clamp meters

What a very odd thread this turned out to be lol

Sorry to raise it from the dead but I did just endure 8 pages so I thought it rude not to comment lol

:thumbsup

 

[aaelectric]

how do you measure earth leakage from a property??