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Why not leave the worry to the Electrician? Sarah

IEE regulations are not 'the law', they are advisory (but are seen as the recognised benchmark) Under the existing/outgoing edition (16th) RCD's were required on socket circuits that could reasonably be expected to supply portable equipment outdoors or on all sockets on certain installations...

Yes - the immediate 'pop' might have blown the fuse and also blown some of the 'shorting copper' away from a nail.This might be a problem if the cable is running on reduced CSA at the point where the fault was (resistance = heat).If the earth wire has blown away some fittings could be left with...

Do you have a link to the new instructions, as' N load' sounds a little strange.The three terminals are usually L, SL (or call) and N.There is sometimes an earth terminal as well. Sarah

Unless the problem now is obvious by close inspection (eg pinched/trapped wire) then I suggest you seek help from a competant electrican who will do the appropriate tests for you and sort things out. You sound as if you are a little out of your depth now that a problem has arisen.Please do...

Is this an existing property, if so is there anyone living there? I hope you have fitted a temporary RCD to ensure disconnection in the event of an earth fault. Sarah

' Have power 'is not quite the right terminology.All 3 phases are live would be better as the other 2 are not supplying current (and are not set up to) and thus the installation can be treated as single phase regards Sarah

Hey :evil:

Must be your server Crafty.My pages are appearing instantly. Sarah

Its all a question of cost really.I have fitted a soft starter to a belt driven gas booster pump due to the fact that the belts were getting torn off with all that torque immediately, that was a necessity.Soft starters generally will not provide full torque at lower speed but are cheaper...

Yes if your supply company do not provide an earth and you have an earth rod (TT system) then the cooker and immersion circuits will at least have to be on a 100mA time delayed RCD Sarah

A call out fee will cover your costs not only for that job but if you have to break away from an existing job which has been priced it will end up taking longer as you have had to unload and load your tools twice - maybe even lay floorboards back down for safety etc etc Sarah

I find that if the tube lights back up after removing the starter then it is usually the starter at fault.This has the effect of putting the cathode heaters in series and thus the voltage at the end of the lamps is not enough to sustain the lamp firing Sarah

It is not possible to activate diffrent heating zones without 2 port valves, but the 2 stat set-up will work but the 1st floor will probably be toast before the 2nd is comfortable. Sarah

Yes I was contracting for 10 years and have been a 'second in command' in a large manufacturing plant for the last 9 years.I have City and Guilds qualifications originally and since being in industry have gained HNC/HND in electrical engineering/automation and control but I have stumbled on...

Just to state the obvious, this must be done with the power OFF! Sarah

You could use a blank plate over the existing socket and extend each cable out to the new socket using connectors or crimps.That way the joint will remain accessible Sarah

Are you aware that this work is notifiable to your LABC under Part P of the building regs Sarah

How were the wires connected to the 3 spot? Sarah

What about worn springs on the lampholder pins?Did you replace the whole fitting or just the rose? Sarah