Hi all, this is a classic case of everyone is telling me contradicting methods.
so I have replaced my bathroom suite and found there was no bonding. on further investigation no main bond from water supply either. the supply enters the house in plastic but after stop cock all water pipes are copper with soldered joints bar a few compression fittings. The gas has a main bond and I'm lead to believe even with plastic supply as above the water pipes need bonding too.
I've fitted a unbroken main bond to terminal block next to the CU using 10mm2 .. CU & gas were already bonded...so main bond dealt with, ok so far?
my real question is supplementary bonding. I'm told/researched that regs don't require supplementary bonding in the kitchen so just the bathroom to deal with, is this correct regarding current regs?
The hot and cold under the bathroom tee off to the basin with a mixers tap then further along they tee off to the mixers shower and finally cold tee off to toilet and out the room again . so if I bond the basin h&c there's no need to bond the shower as its fed from same un interrupted pipes no more than 1m away. in fault conditions surely the shower and tap must be at same potential? plus the shower pipes aren't accessible.
so I want to bond the basin h&c to the radiator pipe (or does it need to be both radiator pipes? can't be rad as its a towel rail rad)
then to earth of shaver unit (i understand the purpose of connecting to the power circuit or lights but don't get why would need to connect to both as both circuits are already connected via the earth in CU) am I wrong here?
Finally I'm planning to use 4mm2 does the supplementary bond have to be unbroken.
Please correct me if I'm wrong anywhere
thanks sorry about the essay
Rob
so I have replaced my bathroom suite and found there was no bonding. on further investigation no main bond from water supply either. the supply enters the house in plastic but after stop cock all water pipes are copper with soldered joints bar a few compression fittings. The gas has a main bond and I'm lead to believe even with plastic supply as above the water pipes need bonding too.
I've fitted a unbroken main bond to terminal block next to the CU using 10mm2 .. CU & gas were already bonded...so main bond dealt with, ok so far?
my real question is supplementary bonding. I'm told/researched that regs don't require supplementary bonding in the kitchen so just the bathroom to deal with, is this correct regarding current regs?
The hot and cold under the bathroom tee off to the basin with a mixers tap then further along they tee off to the mixers shower and finally cold tee off to toilet and out the room again . so if I bond the basin h&c there's no need to bond the shower as its fed from same un interrupted pipes no more than 1m away. in fault conditions surely the shower and tap must be at same potential? plus the shower pipes aren't accessible.
so I want to bond the basin h&c to the radiator pipe (or does it need to be both radiator pipes? can't be rad as its a towel rail rad)
then to earth of shaver unit (i understand the purpose of connecting to the power circuit or lights but don't get why would need to connect to both as both circuits are already connected via the earth in CU) am I wrong here?
Finally I'm planning to use 4mm2 does the supplementary bond have to be unbroken.
Please correct me if I'm wrong anywhere
thanks sorry about the essay
Rob