Andy Dingley wrote:

Use a high voltage resistance meter to check this, not just an average
multimeter. Don't complete electrical installation work without one.
If you don't have one, eBay's your friend.


I want one...
like this one?

http://cgi.ebay.co.uk/Digital-Insula...71410002r29602

Item number: 360165628074

Digital Insulation Meter Volt Resistance Tester 1000V £50.90

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