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If a customer dosn't have supplementary bonding in bathroom, and has a tiled bathroom with laminate flooring so dosn't want walls or floor disturbing is it still ok to change CU to add RCD to S/Os n Shower?

Why does cable in domestic installation have to be double insulated (T&E)? In commercial it is acceptable to use singles

When getting a rewire does the height of swicthes n sockets etc have to be between 450 n 1200mm? Or is that just for new build?

You say pleasent few hours, how long did it take? Is it not a full day assessment?

So do they not watch over you while you do a job? What type of questions do they ask you?

Application Fee is £505 then £468 per year after that

Would a length of plastic conduit say 4inch long over the crimped joint be ok? Does it need to be fixed using a saddle to stop it moving from the joint?

Is it advisable to just use 1mm for say spots? Is it ok to use the 1mm with the 1.5mm mixed?

When NIC do assessment for App Contractor they check 5 jobs right? Do they also watch you complete a job or simply check jobs you have already done? If opted for DI instead do they check 2 jobs instead of the 5? Can someeone spread some light for me as their new website is pretty c**p

Is this a Voltage indicator which proves it is working correctly by itself? http://www.tlc-direct.co.uk/Main_Index/Test_Meters_Index/Dilog_TM6741/index.html Its just NIC bloke said i have to get self proving voltage indicator and proving before and after on known source is insufficient!

If a customer has a TT system with no RCD incomer before entering metal CUs it is dangerous right? Well DNOs fit DP isolators if customer requires, would they fit a 3phase 100mA RCD instead of DP iso?

If wiring a new lighting circuit, is it ok to use 1mm T&E or is it advisable to use 1.5mm T&E. If so, why?

If you were to extend a ring main, instead of using a JB under floor you extend using insulated crimps with rachet crimper. Is any other form of protect required, ie heat sleeving or put joint inside a small length of conduit to cover joint and provide mechanical protection? Would it be ok to...

Do outside lighting attached to the brickwork of the house have to be RCD protected?

Does this comply with BS7671 is what i mean?

When do you need to install a seperate CU for a garage? Is it when the garage is not attached to the house? Is it ok to run the downstairs ring into the garage along with downstairs lights if the garage is attached?

Thought it was illegal to pull fuse. Is it ok in my area, North east?

Got a job doing re-wire, doing thro building control while DI assesment gets done. Wanted to save the expense of having an isolator fitted, it cost £76 last time!

Does a electric meter which you have to 'top up' have an isolator on it to stop supply from it to the CU? Or would an isolator need to be fitted by DNO?

How easy is it for DNO to convert a 3phase TT system to a 3phase PME? How much is it likely to cost? Would this stop the need for a 3phase 100mA RCD as an incomer?