What are your opinions on bonding water pipes if main incoming is plastic?

[Daniel Oake]

You turn up to a property that had recently had an EICR, reporting that the water had no bonding.

The main water stop cock and on-wards was plastic push fits with maybe 400mm lengths here and there (downstairs), but upstairs is still all copper piping behind bath panel and sink pedestals to 2 bathrooms.

Do you test the pipe work that is copper back to the MET to see if it requires bonding or do you just bond a part of the installation with the most copper pipe showing (upstairs bathroom).

I want some opinions on the scenario as i'm just a sparkys mate and going to start my NVQ soon.

 

[rolyberkin]

Oh what a can of worms you have opened!

 

[Strima]

I would run 4mm earth to all pipes, metal window frames, metal sinks, door handles etc all clipped direct to the wall.

 

[Nigel]

In your example I would do the test to confirm if required.

 

[Pete999]

Just bond it

 

[Deleted member 105166]

Daniel, watch this JW video if you've not already seen it.

 

[Daniel Oake]

Daniel, watch this JW video if you've not already seen it.

I'm watching this now but for anyone in future, change the video speed to 1.25 speed for your own sanity lol

 

[Pete999]

Daniel, watch this JW video if you've not already seen it.

Is the OP not talking about The main water bond?

 

[Daniel Oake]

Is the OP not talking about The main water bond?

Yeah the main water Bond

 

[johnduffell]

I would run 4mm earth to all pipes, metal window frames, metal sinks, door handles etc all clipped direct to the wall.

Tut tut did you check if it's pme, 10mm minimum for main bonding

Just bond it

I'd love to see the bonding clamp on the plastic pipe

To answer the original question , "no water bond" is nonsensical in this case, they should be complaining about specific extraneous parts that are not bonded. You could just test whatever you can find and write it down and charge for however long it takes.

 

[Chris Hanson]

Non electrician pennies worth here, I have seen a swimming pool water 'LIVE', Spanish electrician said that the plastic pipes were not conductive yet the sunken pool pump housing was filled with rainwater and NO earth, at least fit a metal gate valve on the incoming mains and bond that as a minimum. Yes I got a full belt off of this one and made me pass a lot of work on since to real sparks.

 

[Timbo]

Non electrician pennies worth here, I have seen a swimming pool water 'LIVE', Spanish electrician said that the plastic pipes were not conductive yet the sunken pool pump housing was filled with rainwater and NO earth, at least fit a metal gate valve on the incoming mains and bond that as a minimum. Yes I got a full belt off of this one and made me pass a lot of work on since to real sparks.

So just earth the pump then? Like it should be.
Gate valves aren't suitable for mains.

 

[Chris Hanson]

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As for the earthing, yes a good idea to earth the pump shame the electrician who installed it never thought of that. The point is that just because the pipes are plastic safe guarding against a short should be installed somewhere in contact with the water.

 

[Timbo]

In your scenario the point of connection to earth was at the pump with the cpc, I wouldn't have thought putting a metal point in the incoming water main for earth bond would be much help for a swimming pool pump in totally plastic pipe.
But the OP gave the impression of a domestic environment.