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Imagine this - the case of a metal CU is live due to schaffed cables entering a non - grommeted hole. I test with my neon screwdriver and it shows a voltage present. I test with a two leaded tester between the case and what I think is a good earth and it shows nothing because this earth is also...

Yes, tap them smartly across the head with it....................

Mudsis, I agree - you certainly do not give any advice. No point in you being here then. Bye

Dimuss, Please publish your full name, address and qualifications on this forum. Thanks

Use the higher figure for your calcs being as it is the power taken by the motor. The lower figure is the useful work the motor can provide.

May have been part of an old two way switching system - how long have you lived in this house - are you aware of any alterations that made the need for a possible, alternative switch redundant? Or, perhaps there is another swicth that you have not yet discovered - what about in the attic? Or...

That is dreadful BAS - they should have used a proper cable grip................

Adam, Without quoting reg numbers these are saying that a high integrity CPC shall be one or more of: (a) 10mm single if not mechanically protected (b) 4mm single if mechanically protected (c) made up of dual CPC's whether that be cable and conduit, cable and armour braiding or two...

Softus, I am not quite sure whether there is a contradiction but, because I cannot tell, probably means that the original regulations were not worded clearly and probably expalains the difficulties that we have seen here. I think that the only area of ambiguity is when picking the csa of...

When I visit my Auntie how heavy is my parrot?

Thripster, Softus didn't miss the pre-amble - so sorry Softus.

Softus wrote:- 'But the 16th Edition also says this: 607-03-01 ...the circuit shall be provided with a high integrity protective conductor connection complying with the requirements of Regulations 607-02 and 607-04. The following arrangements of the final circuit are acceptable...

Whether it is the 16th or 17th the following applies (17th nomenclature):- 543.7.1.3 The wiring of every final circuit and distribution circuit intended to supply one or more items of equipment , such that the total CPC current is likely to exceeed 10mA, shall have a high integrity...

17th - not word for word but might help 543.7.1.3 The wiring of every final circuit and distribution circuit intended to supply one or more items of equipment , such that the total CPC current is likely to exceeed 10mA, shall have a high integrity protective connection complying with one...

it's behind you................................... It will be where the mains supply comes into the house. You should see (if you are lucky) a chromed looking main earth terminal with a number of green and yellow wires coming from it. However, if you feel that this is beyond you I would...

To NotHimAgain, If a circuit has a node, does that mean it will only pass current in one direction? Yours Hugh Janus

Have a look on Ebay - you might well be lucky.

No, he needs a Parsimonious Insultation Repartee.

A. Next Tuesday, half a crown and thruppence. Find out the power rating(s) for the cooker.

A quick search on the web shows this to be a double oven requiring to be hard wired in. What is the power rating for this cooker? Of course you know about the Part P implications?