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I thought ALL sockets (domestic anyway) should now be RCD protected? 411.3.3 unless they were for a specific piece of equipment, eg fridge/washer?

if the meter is a new digital version, some have built in isolation switches under the cover, so you wont need to pull the 'scary' fuselink

Thanks Widdler, I will do just that

I can certainly try extending the on time, though that will kind of defeat the idea of having the lights switch off when not in use :? The idea was to save energy when the stairs are not in use, but I am not so sure it is the right thing thinking about it, presumably there would be an...

They are set to about 3 minutes and I would guess at possibly 100 activations per day

Hi I recently had PIR movement sensors fitted to a stairwell which controls 9 2D type CFL units which are also emergency maintained units, but since the installation I seem to be having a lot of lamp and HF ballast failures As the lights now switch on and off multiple times per day, as...

Thanks for the answers Flameport, thanks for the reg no, I knew I had seen something once Stargazer, it was a circuit which fed contactors which controlled some emergency lighting, the contactor feed had been fed from a completely different lighting circuit doubled up in the MCB, just...

I know its not good practice to have multiple circuits from a MCB but how does this stand with the regs? Many thanks

Acording to BS 7671 I can have as many socket outlets as I want on a 2.5mm ring circuit protected by a 32A breaker (up to 100 sq M) If I run a radial circuit in 4mm, (with 32A breaker) is there a limit to the no of outlets I can have? (it is no larger than the specified 75 sq M max) Thanks

So what do you guys think is happening here then? http://news.bbc.co.uk/player/nol/newsid_7030000/newsid_7030100/7030178.stm?bw=bb&mp=wm&news=1 :shock:

Thanks Plugwash, your reply was very helpful, I hadn't thought of doing it that way, obviously a blonde moment on my behalf :D ...and Ricecrispie, not all of us have years and years of experience like you must have, but that doesn't mean we are incompetent. If you dont have anything...

I need to add an aditional single phase CU next to a 3p distribution board, but the board is full and has no spares, do I run the feed from the live connected side of the DB to the CU? If not, where? FYI, the MD of all loads will not exceed the 100A DB Thanks

Thankyou for the replies I am refering to UK campsites so if the installation was done prior to the 16th edition, and was without a RCD, would it have to be updated, or is it still OK to use, assuming that the tap off is protected at the point of use?

Are the power supply points at camp sites protected by an RCD at the outlet point, or should the user (ie the camper) have the protection built into their equipment? also is 10 amp the max allowable, as they use the blue 16 amp plugs? :? Thanks

If crimps are used or the cables are solder jointed then this conforms to BS7671

these are all mounted sideways! :shock:

Just a quick question, is it OK to reverse an MCB in a DB, as I am having trouble gwtting hold of the specific type that fit, but have another brand which do, but it means having it reversed? Would the operation of the MCB be affected by the reversal of the current flow direction? Thanks

Just recenty had a 5 year PIR done at the place I work at, and it failed on the sprinkler system not been bonded to the MET, althought the sprinkler isnt dirctly attached to the mains water ( its an independantly pressurised system which is supplied by on site tanks topped up by the mains water)...

Thanks John "You can control it by reducing the amount of moisture in the air (by ventilation and by reducing steamy activities) " :oops:

probably been asked a million time so appologies, but could someone shed some light here or point me in the right direction. Thankyou House built in 1950, cavity walls, DG fitted approx 5 years ago. I moved in 2 years ago in the summer there was no sign of mould, provious owner had...