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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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Bathroom supplementary bonding
I wonder I anyone can give me some advise on bathroom supplementary
bonding. I have recently replaced my bathroom suit and understand that I need to install supplementary bonding. I intend to bond the hot, cold and heating pipes together in the loft where they enter the bathroom rather than stringing bonding wire all around the bathroom. I understand that the regs allow the bonding to be provided in close proximity to the bathroom location. Is that right? I have seen many posts about supplementary bonding to lighting in the bathroom and I am still a bit unclear as to what the requirement is here. As I understand it the supplementary bonding from the pipes also has to be connected to the earth points of the junction boxes to which the lights are connected. Is this correct? It would seem to me that if you do this then you are in effect connecting the supplementary wiring system in the bathroom to the house wiring earth which, I have read, you should not do. Any clarification here would be greatly appreciated. Robert |
#3
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Bathroom supplementary bonding
On 13 Oct, 01:05, John Rumm wrote:
wrote: I have recently replaced mybathroomsuit and understand that I need to installsupplementarybonding. I intend to bond the hot, cold and heating pipes together in the loft where they enter thebathroom rather than stringingbondingwire all around thebathroom. I understand that the regs allow thebondingto be provided in close proximity to thebathroomlocation. Is that right? Yup. I have seen many posts aboutsupplementarybondingto lighting in the bathroomand I am still a bit unclear as to what the requirement is here. As I understand it thesupplementarybondingfrom the pipes also has to be connected to the earth points of the junction boxes to which the lights are connected. Is this correct? It would seem to me that if You want a connection to the CPC (i.e. earth) of any circuit that supplies power to the room. Since you are making connections in the loft a connection to the light switch or ceiling rose ought to be easy. you do this then you are in effect connecting thesupplementarywiring system in thebathroomto the house wiring earth which, I have read, you should not do. Not so much "should not do". as "there is no requirement to do". What you are trying to do is create an equipotential zone within thebathroom, so that anything that can introduce a potential into the zone is bonded together. That way you are not able to touch any combination of things at a significantly different potential. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ Thanks for your reply John. I have wired up the bathroom supplementary bonding including the earth point for the bathroom light as you suggested. Checking it all out with a meter it's OK. I don't think I will be asking building control to certificate the job as they want 50 quid plus but at least I know it's safe. Robert |
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