yes
you should add Supplementary Bonding to each metallic service that enters the bathroom, and the earthwire of each electrical service that enters the bathroom. this is probably radiator flow and return, hot water, cold water, light circuit. may include immersion heater circuit, electric shower circuit, shaver point circuit, electric heater circuit, central heating pump, cylinder thermostat, iron soil pipe, metal waste pipe. the purpose is that even if e.g. you sit, wet and naked, on an iron bath and touch a metal tap with one foot and a metal radiator with the other, while changing a bulb in a metal light fitting, you cannot get an electric shock as they are all bonded with copper wire, which will carry any fault current and hold them all at the same potential. by doing this in the bathroom, it will keep you safe even if there is a fault elsewhere in the house. Wet, naked skin gives a much higher risk of fatal shock than in other parts of the house, if there should be a fault
There are conditions when you do not have to do this, but unless you have a new, modern and good, electrical installation these will not all apply so it is easier just to do the bonding.
Bond the pipes where they enter the bathroom, or immediately outside (e.g. in an adjacent airing cupboard). you only need to bond each metal pipe once (e.g. you bond the hot pipe once, you do not have to bond it at the bath tap, and the basin tap, and the shower tap) and each circuit once (e.g. at the light switch, and not at all ten of your downlighters)
You get a more reliable connection if you use a single piece of G&Y, stripping off the insulation at each clip and running round all the connections. rather than several short pieces, in case one of the joints becomes detached.
More information in the Wiki - //www.diynot.com/wiki/electric...l_bonding:supplementary_equipotential_bonding
You also have to do Main Bonding of the incoming services (Gas, Water, Oil) where they enter your house - see Wiki
This work is not notifiable and you are allowed to do it yourself. You can pay an electrician if you prefer, but most of the cost will be his time clambering about on the floor and getting dirty, which is not skilled work. Testing it however does need equipment which you are unlikely to own. But I would guess that about 99% of houses have bonding which has not been professionally tested.
you should add Supplementary Bonding to each metallic service that enters the bathroom, and the earthwire of each electrical service that enters the bathroom. this is probably radiator flow and return, hot water, cold water, light circuit. may include immersion heater circuit, electric shower circuit, shaver point circuit, electric heater circuit, central heating pump, cylinder thermostat, iron soil pipe, metal waste pipe. the purpose is that even if e.g. you sit, wet and naked, on an iron bath and touch a metal tap with one foot and a metal radiator with the other, while changing a bulb in a metal light fitting, you cannot get an electric shock as they are all bonded with copper wire, which will carry any fault current and hold them all at the same potential. by doing this in the bathroom, it will keep you safe even if there is a fault elsewhere in the house. Wet, naked skin gives a much higher risk of fatal shock than in other parts of the house, if there should be a fault
There are conditions when you do not have to do this, but unless you have a new, modern and good, electrical installation these will not all apply so it is easier just to do the bonding.
Bond the pipes where they enter the bathroom, or immediately outside (e.g. in an adjacent airing cupboard). you only need to bond each metal pipe once (e.g. you bond the hot pipe once, you do not have to bond it at the bath tap, and the basin tap, and the shower tap) and each circuit once (e.g. at the light switch, and not at all ten of your downlighters)
You get a more reliable connection if you use a single piece of G&Y, stripping off the insulation at each clip and running round all the connections. rather than several short pieces, in case one of the joints becomes detached.
More information in the Wiki - //www.diynot.com/wiki/electric...l_bonding:supplementary_equipotential_bonding
You also have to do Main Bonding of the incoming services (Gas, Water, Oil) where they enter your house - see Wiki
This work is not notifiable and you are allowed to do it yourself. You can pay an electrician if you prefer, but most of the cost will be his time clambering about on the floor and getting dirty, which is not skilled work. Testing it however does need equipment which you are unlikely to own. But I would guess that about 99% of houses have bonding which has not been professionally tested.
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