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[/url] Thanks for the advice foxhole, They would have to be quite long to go through 20mm of D&D & then a decent depth into the Thermalite. It does say for Thermalite so I'd imagine they'd be good, I've seen them made of aluminium for plasterboard fixing someone called them pig tails, but I...

Thanks kbdiy, I've not been very impressed by the strength of Thermalite in a drop test, but I just found a 1/4 piece of Thermalite, and tried some test screws. I drilled a 6mm pilot hole, used a red raw plug, and a 30mm PZ wood screw, Then a 7mm pilot, brown plug, and a 40mm screw the same...

I want to put up B&Q kitchen wall units. The wall is dob and dabbed plasterboard, onto Thermalite aerated 100mm blocks, insulated cavity and 100mm brick. Can anyone recommend fixing that won't pull out easily?

Thanks for your help Aragorn. Yes the cooker is on a 32A MCB which is also RCD protected so would not need steel conduit, but purely out of curiosity when you say earthed steel conduit, do you mean it is earthed by the fact it is in a solid wall, or does it need to my connected to an earth cable?

I am doing some kitchen remodeling. The cooker control switch is mounted at 1.2m high on the wall, 0.3m horizontally from the 0.6m wide free standing electric cooker. The 6mm2 cable to the switch is buried in the solid wall, while the 6mm2 cable from the switch to the cooker is surface...

A good point 'Prentice', would it still be worth buying the new consumer unit for £70, taking out 1 RCD and 1 MCB, and keeping the rest of the consumer unit complete with 1 RCD and 9 MCB's for spares?

I just saw this on Screwfix, the same consumer unit as mine, but with 2 rather than 1 RCD. Presumably they wouldn't sell it if it wasn't currently legal. http://www.screwfix.com/p/mk-sentry-10-way-dual-rcd-board-with-2-rcds-10-mcbs/92791?cm_mmc=Email-_-E14W05A-_-Hero1-_-MKsentry10wayrcdboard...

It's a big clock John :lol:

Thanks John, you nailed it! :mrgreen:

Thanks for your feedback 'TTC', but I think you missed 'Owain's' point. I didn't specify the type or Kw of the electric cooker, because I am installing a freestanding gas cooker. Owain suggested I should put in an electric cooker point while I was at it, so I would have to flexibility to...

Thank you for your advice Owain, I didn't intend to, but now you have mentioned it I might well take your advice. So for a cable run of about 13-14 metres, and a standard domestic 600mm wide electric double oven with 4 hobs, any idea's on cable, and RCBO size?

Ahhh so I don't have to update to RCBO's in order to get LABC approval. Yes John there are 3 spare MCB's, 2 RCD protected & 1 not, although I hope to keep 1 for Aico smoke alarms, & if I follow Owains advice one for an electric cooker, although I will be installing a gas cooker, it will future...

Thanks mfarrow, Yes it is just an immersion heater, no the cable is surface mounted not buried, and I hope to get gas central heating once my new kitchen extension is finished, which should do away with the need for an electric immersion heater.

Thanks for the advice mfarrow, It does sound like upgrading my consumer unit is probably a better solution than armored cabling. The shower and sockets are already 30mA RCD protected, can't things just be reshuffled inside the existing consumer unit, so that everything is RCD protected...

MK, Split load, Single RCD.

Thanks guys for all the great advice :D I asked about the 2.5mm2 cable because I found a single 8m length of 4mm2 cable coming out of my consumer unit before it reduced down to 2.5mm2 that supplied my garage ring circuit from the house. Not dangerous of course, but enough for me to ask for...

Hi, I've built a new kitchen extension, which will have a new ring main. The internal walls are Thermolite (Aerated) blocks, which I would like to dob and dab plaster, thus hiding the cables behind the plasterboard, as the floor is solid screed. The new Kitchen will have a free standing gas...