Taps and Rads earth bonding

[Roadking54]

I've been out of the gave long before plastic water pipes replaced copper.

Q: Is earth bonding to bathroom taps and rads required where the water supply is plastic piping and pushfit connections throughout the house back to the water mains supply? I'm in a new build and a neighbour is selling his house but has been told that the electrical bonding is not up to spec. Basically I can't see anything to "BOND" to. only the small bit of thread on a tap visible above the plastic 22 mm connection for instance.

Thanks all,

 

[Badged01]

I guess your talking about supplementary bonding? If its a new build it should be RCD protected on all circuits? If so supplementary bonding is a thing of the past .......

 

[davesparks]

Seriously? Supplementary bonding is a thing of the past, no testing of exposed metal parts to establish if it is necessary or any of that shebang?

 

[Badged01]

Seriously? Supplementary bonding is a thing of the past, no testing of exposed metal parts to establish if it is necessary or any of that shebang?

Why would you want supplementary bonding if the circuits are RCD protected? Or more importantly what regs demands it?

 

[Roadking54]

The consumer box is split red / green labels with a main switch on the red side with the up & down lights, alarm circuit breakers then the green side has an RCD and the up/ down sockets, cooker, appliances & outside sockets CB's.

My neighbour got a local electrical company to test everything and they ran a white plastic conduit from the outside meter box, all the way around the house up to the bathrooms. It looks like a 10mm earth connected to the incoming earth. Looks really bad and cost him a packet but they said he couldn't sell his house without the work. I told him to call the builders to check the build spec and the sign off for the electrical installation but he'd already coughed up a few hundred quid.

Thanks for the feedback so far.

 

[stevethesparks]

Why would you want supplementary bonding if the circuits are RCD protected? Or more importantly what regs demands it?

701.415.2 vi
&
415.2.2

 

[davesparks]

First thing I noticed about that is they installed white PVC conduit outside, this is not correct as white conduit is not uv star and will degrade in conduit. Only black PVC conduit should be installed externally.
Obviously galvanised conduit is also allowed.

 

[Badged01]

701.415.2 vi & 415.2.2

I suggest you have a good read of those again once you have re-read what my assumption was --- new build with all circuits RCD protected! You may be suprised and learn something

 

[Geoffsd]

My neighbour got a local electrical company to test everything and they ran a white plastic conduit from the outside meter box, all the way around the house up to the bathrooms. It looks like a 10mm earth connected to the incoming earth.

That seems unnecessary.

To what have they connected it in the bathroom?

 

[Engineer54]

The consumer box is split red / green labels with a main switch on the red side with the up & down lights, alarm circuit breakers then the green side has an RCD and the up/ down sockets, cooker, appliances & outside sockets CB's.

My neighbour got a local electrical company to test everything and they ran a white plastic conduit from the outside meter box, all the way around the house up to the bathrooms. It looks like a 10mm earth connected to the incoming earth. Looks really bad and cost him a packet but they said he couldn't sell his house without the work. I told him to call the builders to check the build spec and the sign off for the electrical installation but he'd already coughed up a few hundred quid.

Thanks for the feedback so far.

Sounds very much like your neighbour has been taken for a right royal ride, if he has the same consumer unit as yourself and he's incoming water pipe is plastic.... He may however have some legal recourse. A trip to the CAB may confirm this....