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How do you do a meter accuracy test?

Would poor insulation resistance to earth cause excessive use of electric? Wouldn't it cause mcb to trip if short to earth?

Thanks for advice. I'll have to run buying a clamp meter past the office. Whats a good one & what sort of price? How do you use it, does it just go round line or both line & neutral? Wish me luck.

I have a job tomorrow with this job description: "Resident has had escalating electrical bills over the past few months, after changing supplier the bills were still excessive. The reports back from supplier indicate that the property is using 9 times the amount of electricity it should be...

Hi Shakey That would be great if you could email me a copy :D I'm sitting it at Eastleigh College, Southampton. Thanks :D

Thanks for the detailed explanation, much appreciated:D

Is it an open book exam? Thanks for info:)

Thanks for info. Any thoughts on ins res testing on immersion elements? Thanks.

OK, thanks. What resistance/continuity reading would you expect for a good element in storage heater? Also when testing immersion elements, 11 inch one usually, approx 18-20 ohms if ok. Have had 200-300 ohms & 5 ohms, which I take as no good. Is this correct? If do insulation resistance...

:)Hi has anyone done the 2392 yet? I,m doing it next month prior to doing 2391 in new year.

How do I gain access to tips & tricks section please

Hi whats the best way to test storage heaters if tennant complaining of not working? Any advice welcome. Thanks :)

I Know dodgy username. Ha ha, although sometimes its like that :)

Hi everyone, I relatively new to the electrical industry & am working in reactive maintenance for housing association. Thanks