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Deli van

PostPosted: Mon May 14, 2012 9:57 pm
by Alan Freeman
I was testing a Deli van tonight. When I tested the 32A commando plug on the outside of the van I got 0.1M ohm insulation. The commando is connected to a small consumer unit with an RCD main switch and three MCB's.

Only with the main breaker off did I get >19.99M ohm. Even with all MCB's off and the main breaker on the resistance was 0.1M ohm.

Just confirming I did the right thing in failing the van electrics - or would an RCD breaker make the insulation low?? I don't think so, but just checking!

Re: Deli van

PostPosted: Tue May 15, 2012 2:45 pm
by safe + sound
Hi Alan

Assuming you are testing L+N to E, I agree this has to be a fail.

Re: Deli van

PostPosted: Tue May 15, 2012 3:16 pm
by PATconstructive
Is there a device/appliance inside the van wired directly to the main breaker, bypassing the mcb's?

Re: Deli van

PostPosted: Tue May 15, 2012 7:12 pm
by Alan Freeman
Not that I could see. 32A commando into consumer unit. The copper bar of main breaker directly to MCB's. Add to that, I could see nothing part shorting to the bar!

The only thing I did think was the weather. This is a van and it had been raining hard all day.