earth bonding.

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that bloke.

i am renovating an old cottage and have taken all the galvanised pipe work out to replace with a mix of copper (where exposed) and plastic (where concealed). The old pipe work was incredibly simple and kept confined to a small part of the kitchen (no central heating) , it had an earth bond running from the pipe work straight into the consumer unit that is situated beside the pipe work.
I am modernising the entire system from the point where it enters the house and will be installing a combi for hot water and heating. The new system will be quite complicated so i am wondering about the earth bonding , does all the copper pipe , every last scrap, have to be connected to earth?
 
rodents chew it? no.. damn. when i was plumbing up new builds it was all in plastic , never buy a new build.🙂 is there anyway to protect the plastic? paint it with mustard perhaps?😛

so , with the earth bonding , do i run earth wires from each individual piece to the consumer unit or just jump from section to section? i suppose tha latter would be the easiest way , also i take it anything buried in a concrete floor will still need earthed? (it will be sheathed so wont be able to earth through the floor).
what kind of wire would i use? would 6mm earth cable be ok?
edit - whats the difference between cross bonding and supplementary bonding?
 
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could you not just get a sparky in for the day to do all the earth bonding
 
pay a spark for an hour ,get a price off him,and see if it works out cheaper him doing it,ie might take you 2 days,spark 2 hours ,so false economy,also you really need to be niceic reg,when working on elecy ,part p needed in wet rooms
 
think its alll changed recently as to what needs earthing ive heard that a lot of stuff no longer needs earting but it depends on the fuses circuit breakers youve got
 
that bloke. said:
i am renovating an old cottage and have taken all the galvanised pipe work out to replace with a mix of copper (where exposed) and plastic (where concealed). The old pipe work was incredibly simple and kept confined to a small part of the kitchen (no central heating) , it had an earth bond running from the pipe work straight into the consumer unit that is situated beside the pipe work.
I am modernising the entire system from the point where it enters the house and will be installing a combi for hot water and heating. The new system will be quite complicated so i am wondering about the earth bonding , does all the copper pipe , every last scrap, have to be connected to earth?
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The ed 17 regs are different to what one used to have to do. It has been proven that secondary bonding can induce a current into a metal fitting so now one doesnt always have to provide a bond. You must use a sparky who knows his stuff to ensure that the system you have in place is safe, if you dont fully understand the electrical safety requirements, you may well make your set up potentially lethal, its the same as working with gas, you cant take short cuts and its not diy. I would not think you have the requisite electrical testing equipment needed to test the new system, so you have to call in the experts.
 
just finished my part p.
all electrical bonding has changed since 16th edition.
on a completed instalation all sparks have to complete the safety certificate.
if the bonding isnt correct there wont be a safety certificate.
all bonding has to be tested with proper testing gear.
call in a sparks who can make sure all is ok.
earth bonding isnt there for building safety.
earth bonding is for human safety.
just as dangerous as a dodgy gas fitting !!

good luck
 
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