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Hello spark123, I wanted to protect the cable going from the house to the garage where a 2 way consumer unit will be fitted with one 6 A breaker and one 16 A breaker . I know if i have a fault on the lawnmower i will have to go to the house to reset i don't mind that .This way eveything...

Is it ok to use a single pole rcbo to protect the garage supply cable as a rcbo is a combined rcd and mcb, i was concerned that i thought both the phase and neutral conductors had to be switched off in the event of a fault or overload. The Local electricity board replaced my dads 32a breaker...

What is actually meant by " The prospective short circuit current" Thanks

Does any one have any quotes -estimates for a 3-bed semi rewire . X2 light circuits X2 ring mains x1 cooker circuit X1 Imersion heater All the above on individual rcbo's and a flush installation no low voltage lighting .Just curious as i know there are lots of variables but wondered how...

Why 25.00mm tails ??? 16.00mm tails are rated at 87amps even 10.00 mm tails would do.

Your right i was thinking of something else !!!!

Thanks is that plus or minus 3 or 5 % ??? Thanks again

Hi , what is the acceptable volt drop according to the 17 is it 3%

Yes after they demolished there garage X2 piers were built on their side to support my garage wall Thanks.

Yes , on there side they had to build X 2 large piers to support our garage wall ( the wall that used to support two garages ) So is it still a part wall or is it mine . The reason i want to know is that i want to widen the garage by about 0.5 mtrs on my side of course !

My neighbours garage was adjoining mine ie side by side they have now knocked it down , is the wall that was dividing the two garages mine or is it a party wall this wall divides the two gardens.

If i was to do a rewire to the 17th as of July onwards would i have to earth the old split conduits that are just below plaster depth if i was using a rccd , assuming i am using twin & earth , the existing split conduits would only be used for convenience . Thanks also i have seen twin & earth...

The conduit is buried top and bottom

When rewiring an old house - how do you earth split conduits when the conduit finishes short of the switch back box and the top of the conduit is less than flush with the ceiling board ?????/

Many thanks to all the people who showed patience with my questions , thanks , i am a sparky but have been away from installation work for about 15 yrs as i am a maintenance chap so am trying to understand the new regs hence doing the 17 iee regs at college but am finding it confusing with the...

Yes i did , but do you then connect the pipes boiler to your cpc of your lights and imersion etc in the bathroom even if the airing cupboard is next door to the bathroom. I am halfway through the 17 iee regs at college but still find all this confusin !!!!

So if were trying to earth metalwork why does the regs say do not bond to the met ?

Thanks , So it says not to run the 4mm bonding wire to the MET but do you bond it to the light circuit or shower or the imersion heater circuit of the bathroom. Or are you relying on the main water pipe being bonded as it enters the house and there are no plastic joints in the pipes from...

So do you run the 4mm cable back to the MET or connect to the earth terminal of the boiler circuit or just connect. out the pipes and boiler

ok so both sparkybird and yourself agree that if the circuits are protected by a 30ma rccd then bonding does'nt have to be done