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So if the TT system came from the supply fuses (3Phase) in2 henley blocks, then tails from the blocks into metal CUs, what would be best action to make safe and to NIC guidlines? Would installing a 3 Phase RCD in plastic CU which supplied Blocks be ok? If CU had a 30mA RCD instead of the...

Written down but now 1st chance on computer to ask! Cheers Guys

Is it perfectly ok to power a lighting circuit in say a conservatory from the ring main if it is fused down by a 3A FSU? Can the cable supplying the load (Lighting Circuit) be 1.5mm even if FSU is supplied by 2.5mm?

When a TT Supply enters a building doers it have to go directly into a plastic RCD incoming box before entering a metal CU? Its just the Guy from NIC the other dau said it would be against regs because not supplementary proected by RCD if 1st RCD was in Metal CU

Would you fill in a EIC or a MWC for installing 9 spots in a living room? As its adding new lighting points from existing, but also a new circuit in itself

Does the armoured bit of SWA that is clipped direct to a wall have to be earthed?

Looks like he'll be replacing lot then if he has, cheers fella's :roll:

Arent they wired in parallel so wud run on seperate circuits?

So if he has drilled the element is it a case of just replacing that section?

IR at 500v?

Got a plumber friend who thinks he may of drilled through sum under flooring heating when drilling to secure a toilet down. Is there some type of test to see if he has? Would a resistence test show up a fault? If he has wouild it be a case of replacing full lot or just that section he may of...

So what should be used?

Do you need special type of lights for use in kickplates in a kitchen? Can you use normal recessed spots or are they not suitable because mounted in wooden kickplates?

Like said, you needed a periodic inspection report doing matey, without that you dont know what your up against. :?

From a safety point of view mate i'd get a full periodic inspection report done. This will tell you of any defects and dangerous situations. It could be cheaper to have this done and any defects put right than having the full building rewired. The extent of making good, painting wallpapering...

Sounds like top floor tennent has being playing music too loud so bottom floor tennent has pulled main fuse to shut him up!!! :lol:

When you use knock outs on CU should there be sum type of grommet put in to stop insulation being burred? Where wud i get these from?

Cheers Lads

Can sum1 just confirm summit. You bond all metal water and gas pipes within 500mm of entry to premises. Central heating system, do you bond them pipes if they are all copper? What about if some pipes are copper and sum are plastic, meaning there is no continuity?

What about if it was just an isolator switch which wasn't directly behind it, but say 100mm to side but at least 300mm in all directions. Isolator to turn on/off oven under worktop