BS951 Earth clamps cant be located?

[jimminick]

Hi Guys, I've just been doing a EICR on a old one bed terrace and although there are two 10mm2 main bonding conductors connected to the CU I cannot for the life of me find the earth clamps at the other end and I've never experienced this before? I've traced the gas pipe which enters the building at 1st floor, runs under the floor boards to a gas boiler installed at the top of the landing; with no clamp on visible pipes into the boiler or outside. The water pipe enters the house at ground level front room then runs up decorative boxing to the 1st floor and again runs under floorboards to the bathroom then drops down again to feed the kitchen below. The owner doesn't want either floorboards or boxing removing so I can't investigate further to check them. I have however tested between unconnected ends and both boiler gas pipe as well as kitchen sink water pipes and get a 0.02 ohmn reading for both. Do I just comment on the form to this effect and list it as an agreed limitation or is it actually a fail because i cant visually verify the connections?

Many thanks

 

[Dan]

Hello jimminick, welcome aboard. Enjoy the forum.

 

[pyrosym]

I would mark it as a limitation and note down the reading you get for both. If your not allowed to do the house bashing you'll need x ray vision! Alternatively fit a new bond but same applies no house bashing no new bond!

welcome to the forums

 

[jimminick]

That's what I thought but just wanted a second opinion. Thanks very much for your response :smiley2:

 

[pyrosym]

The reading is below 0.05 Ohm so I would say that it is a C3 just because the connection itself cannot be located though the reading is a pass its non compliant to modern regs. See section 4 of on site guide or chapter 54 of regs for more detail.

 

[MarkieSparkie]

Hi, welcome to the forum.

 

[telectrix]

and a 3rd opinion agrees with the 2nd opinion.

 

[markc123]

And the 4th opinion agrees with the 3rd...

This could go on for a while :d

 

[telectrix]

till lofty tells us it's OK coz someone else will test it.

 

[markc123]

Haha yeah - speaking of lofty, he's been inactive for the last few days. I do hope he hasn't upgraded to 3phase and glued himself across some conductors somewhere.

 

[Ducksy]

What would you do in the case of needing to issue a MWC, lets say adding spur to ring ?

 

[Ducksy]

I'd like to add I always make sure bonding is continuous (find both ends) before any additions but would like to know what every one else does