Yet another bonding question!

[sjm]

Hi guys just a quick question, hopefully easy to answer.

Stainless steel benches with s/s worktops in a nursing home kitchen. Plastic feet and the benches are not built in or screwed to walls.
I can't see that these benches are extraneous conductive parts, however they appear to be main bonded at present? Should I main bond new units, change all bonding to supplementary or just leave well alone and not bother bonding the new units?
Your advice/opinions would be gratefully appreciated.

Thanks in advance
Steve.

 

[SMB]

Im no expert....but im really fairly sure they don't have to be bonded mate. Someone else will be along soon to give you the definative answer.

Ive seen metal window frames bonded...WHY?

All the best.

 

[cagedanimal2010]

i cant see a reason for them to be bonded.

danny

 

[SirKit Breaker]

I cant see any point in bonding them either. would be different if they had appliances or similar fixed to them, but just used as food preparation etc, seems pointless to me, and probably a pain for them if the need to move them about to clean or whatever. Leave them alone i would say. The plastic feet wii just be there to protect the floor from scratches.

Cheers.......Howard

 

[Engineer54]

Rather than just give my opinion on these stainless steel tables, consider this Why has the manufacturer provided bonding points at each end of these tables. Also, consider where these tables are being utilised and for what purpose.... OH and by the way ...those plastic feet are in many cases (not all) made from conductive material ...purposely

 

[tonys]

Stainless steel benches with s/s worktops in a nursing home kitchen.

What's s/s stand for ? socket outlets ?

 

[cagedanimal2010]

What's s/s stand for ? socket outlets ?

Stainless steel

 

[tonys]

Stainless steel

Thanks

 

[SMB]

Most stainless steel sinks are still supplied with an earth-lug. Im fairly sure they don't need bonding now. Im fairly sure they never needed bonding in the first place.

Quite happy to be informed about the matter though.

 

[pushrod]

If the circuits nearby are protected by rcds then they will almost certainly not need bonding regardless of intended use.

 

[SMB]

Anyone got a cheap GN8 they want to part with?

 

[Engineer54]

That's another problem, all you new sparks are totally wrapped up in the 17th ed, The real world out there is somewhat different!!! The vast majority of the installations out there are not installed to the 17th ed, and many not to the 16th either....

 

[SMB]

Sorry Engineer 54, I didnt mean to alter your blood pressure.

 

[SMB]

The vast majority of the installations out there are not installed to the 17th ed, and many not to the 16th either....

I agree with this bit.

And that might mean we will all be earning some proper money soon.

RCD central.

 

[Deleted member 9648]

In order to be an extraneous part they have to introduce a potential,normally earth. As they are not fixed to anything and within the building they cannot introduce a potential.Therefore they will not require main bonding.
Supplementary bonding is only required in special locations,a kitchen is not a special location so supplementary bonding will not be required...RCD or not.
If someone has bonded them that is either down to a designer or electrician who doesnt know the regulations.