shock!! no trip!

[eganelectrical]

When I wired my ccu I fitted all rcbo's. and tested all trip times etc. all passed!! In the garden mixing cement a few weeks later and water got all around the extension lead near the plugs! I didn't see this because it started getting dark! But Jesus I felt it with a rattle as I unplugged the mixer!
Went in the house and Rcbo for outside sockets still on! Checked trip times the next day and all still fine!! Surely this should have tripped??

 

[danibanez]

When I wired my ccu I fitted all rcbo's. and tested all trip times etc. all passed!! In the garden mixing cement a few weeks later and water got all around the extension lead near the plugs! I didn't see this because it started getting dark! But Jesus I felt it with a rattle as I unplugged the mixer!
Went in the house and Rcbo for outside sockets still on! Checked trip times the next day and all still fine!! Surely this should have tripped??

Yeah that's odd would have thought the rcbo would have seen the imbalance in current they are normally quite good :s dodgy rcbo by sounds of things but you say you trip tested it and it tripped in
Good time ok?.. Sure there will be a lot smarter guy to give a better explanation I'm sure.

 

[telectrix]

10mA through you will give you quite a tingle till you let go, but it won't trip a RCD. and depends how well you are earthed.

 

[moose]

Did you check the trip times at the socket or at the rcbo in the board, this is sometimes a mistake by some sparks, as the earth may not be conneted in the socket, where the mixer was plugged in, or maybe the mixer hasnt a good earth.

Just a thought..

 

[Knobhead]

You didn't rattle enough. Plain and simple.

More fool you for handling the extension lead if it was wet.

 

[electric will]

Extension lead reel was probably plastic, so being wet probably didnt give a good enough path to earth, until you touched it, then you must have got less that 30ma.

would you be so kind to do it again but put a amp clamp round the live and neutral and let us know the leakage

please don't. I'm only joking

 

[Knobhead]

And here's me thinking I can be nasty

 

[snowhead]

The most painful and only cross body shock I've had was on a circuit with 30ma rcd protection, which didn't trip, but was later tested and passed.
Below 30ma hurts.

All the others have failed to reach the same level of pain.

 

[MDJ]

Did you check the half times test on both poles though? is your tester calibrated? what tester have you got? what make of RCBO have you installed?

 

[eganelectrical]

Yes tested and all the trip times were fine using a fluke multi function!!

 

[eganelectrical]

10mA through you will give you quite a tingle till you let go, but it won't trip a RCD. and depends how well you are earthed.

Come to think, I was wearing rubber wellies!!

 

[MDJ]

Yes tested and all the trip times were fine using a fluke multi function!!

what were they?

 

[eganelectrical]

You didn't rattle enough. Plain and simple.

More fool you for handling the extension lead if it was wet.

I said it was getting dark so somewhere someone had spilt water near the plugs.

 

[snowhead]

Come to think, I was wearing rubber wellies!!

Take them back, they aren't insulated

 

[eganelectrical]

Did you check the trip times at the socket or at the rcbo in the board, this is sometimes a mistake by some sparks, as the earth may not be conneted in the socket, where the mixer was plugged in, or maybe the mixer hasnt a good earth.

Just a thought..

Yes mate I checked from the socket! Also tested in from ext lead plug sockets.