Bonding in commercial catering kitchen

Your link Graham is an example of the kind I was talking about. Have you ever seen a dishwasher like the example? I you had you would know that all the sections are bolted together so no supplementary bonding is required! We are not discussing items like this, we are simply discussing the rest of the work surfaces, which are NOT integrated with electrical equipment. As they have no electrical connections, why do you want to Earth them? They are NOT extraneous conductive parts, like metal window frames, and we do not Earth these do we? There is a complete disconnect between many regulations, those involved are obviously unable to see the problem. We often find questions here where multiple rules collide from differing sources, it is a minefield for the average tradesman.

David Stone said:

I you had you would know that all the sections are bolted together so no supplementary bonding is required!

David, yes, I have seen this kind of appliance.

I also know (which you do not appear to acknowledge) is that bonding is required by the standard, if the appliance is made to BS EN 60204-1. However, to re-quote myself from an earlier post about the bonding  'BUT that could be effected by physically bolting the table to another part of the machine' - the deciding factor in the standard is whether bonding is removed by disconnecting (for repair, replacement or maintenance) another component of the machine.

David Stone said:

We are not discussing items like this, we are simply discussing the rest of the work surfaces, which are NOT integrated with electrical equipment.

Again, as I said earlier, the original post did not specify. You may want to bound this in an arbitrary way ... I'm not satisfied with that, because that dishwasher has "tables" bolted to it.

David Stone said:

We often find questions here where multiple rules collide from differing sources, it is a minefield for the average tradesman.

Sadly, the world isn't always one-syllable.

David Stone said:

They are NOT extraneous conductive parts, like metal window frames, and we do not Earth these do we?

Are you saying window frames are extraneous-conductive-parts ?

I have seen some pretty crowded commercial kitchens in pubs and restaurants. It can sometimes be difficult to easily move around them as they are filled with metal tables, appliances and other necessary equipment that has increased over the years.

Could Section 706 ever apply to such a kitchen?

Z.

No  Graham, you have misunderstood, it is an example of some random metal not something likely to introduce a potential!

No  Graham, you have misunderstood, it is an example of some random metal not something likely to introduce a potential!

David Stone said:

No  Graham, you have misunderstood, i

Or perhaps the English was not 100 % clear ... apologies, I would have anticipated something like "they, like metal window frames, are not extraneous-conductive-parts". In BS EN 60204-1 terms, these "tables" would be conductive parts of the machine.

Regardless, I have to fight the corner on this particular discussion, as we don't want people removing GNYE wires required by standards such as BS 60204-1 left, right and centre, from reading the thread.

I have not seen B.S. 60204-1. I do not expect that I can afford it.

Z.

Zoomup said:

I have not seen B.S. 60204-1. I do not expect that I can afford it.

Often said, but to be honest I don't accept this as a criticism in the UK. Most local libraries have a facility to access British Standards free of charge.

Some local councils provide read-only access to British Standards for library card holders, which can be accessed from your own home via the local library web-site.

This is definitely the case in Lancashire and Northern Ireland, but I'm sure there are other local authorities too.

So, please look a little more carefully.