Someone mentioned that SS splash backs should be earthed, are there any
sensible reasons for this really being necessary?
I certainly didn't earth mine and since the hob isn't installed *into*
in and is not touching it (20mm gap) and no cables run behind it, I
can't see the point.
Noting that the SS extractor hood I fitted came with dire warnings and
specifically *forbids* it being earthed...

In article ,
Lee writes:
Someone mentioned that SS splash backs should be earthed, are there any
sensible reasons for this really being necessary?
I certainly didn't earth mine and since the hob isn't installed *into*
in and is not touching it (20mm gap) and no cables run behind it, I
can't see the point.
Noting that the SS extractor hood I fitted came with dire warnings and
specifically *forbids* it being earthed...

There's no requirement for earth bonding in a kitchen.
Having said that, I have earth bonded around my stainless
steel kitchen sink. The sink is probably earthed through
the plumbing anyway, but the bonding makes sure that it
and the tap and the local socket earths are all bonded,
so there should be no electrocution risk between them.

As for what's safest - that's a difficult call.
If there's no way the panel can ever become live, it's
better to leave it floating. If there's any chance it
could become live (screw into buried cable, etc), then
it's better to earth it. The cooker hood is probably
designed such that it can't become live, by double
insulating.

There is no one right answer.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]

In article ,
Andrew Gabriel wrote:
In article ,
Lee writes:
Someone mentioned that SS splash backs should be earthed, are there any
sensible reasons for this really being necessary?
I certainly didn't earth mine and since the hob isn't installed *into*
in and is not touching it (20mm gap) and no cables run behind it, I
can't see the point.
Noting that the SS extractor hood I fitted came with dire warnings and
specifically *forbids* it being earthed...

There's no requirement for earth bonding in a kitchen.
Having said that, I have earth bonded around my stainless
steel kitchen sink. The sink is probably earthed through
the plumbing anyway,

the modern thing to do is to use plastic plumbing.



but the bonding makes sure that it
and the tap and the local socket earths are all bonded,
so there should be no electrocution risk between them.

[Snip]

--
From KT24

Using a RISC OS computer running v5.18

On 17/06/14 13:38, charles wrote:
In article ,
Andrew Gabriel wrote:
In article ,
Lee writes:
Someone mentioned that SS splash backs should be earthed, are there any
sensible reasons for this really being necessary?
I certainly didn't earth mine and since the hob isn't installed *into*
in and is not touching it (20mm gap) and no cables run behind it, I
can't see the point.
Noting that the SS extractor hood I fitted came with dire warnings and
specifically *forbids* it being earthed...

There's no requirement for earth bonding in a kitchen.
Having said that, I have earth bonded around my stainless
steel kitchen sink. The sink is probably earthed through
the plumbing anyway,

the modern thing to do is to use plastic plumbing.


Eeewww...



but the bonding makes sure that it
and the tap and the local socket earths are all bonded,
so there should be no electrocution risk between them.

[Snip]

On 17/06/2014 13:13, Andrew Gabriel wrote:
In article ,
Lee writes:
Someone mentioned that SS splash backs should be earthed, are there any
sensible reasons for this really being necessary?
I certainly didn't earth mine and since the hob isn't installed *into*
in and is not touching it (20mm gap) and no cables run behind it, I
can't see the point.
Noting that the SS extractor hood I fitted came with dire warnings and
specifically *forbids* it being earthed...

There's no requirement for earth bonding in a kitchen.
Having said that, I have earth bonded around my stainless
steel kitchen sink. The sink is probably earthed through
the plumbing anyway, but the bonding makes sure that it
and the tap and the local socket earths are all bonded,
so there should be no electrocution risk between them.

As for what's safest - that's a difficult call.
If there's no way the panel can ever become live, it's
better to leave it floating. If there's any chance it
could become live (screw into buried cable, etc), then
it's better to earth it. The cooker hood is probably
designed such that it can't become live, by double
insulating.

There is no one right answer.


Thanks, as usual clear and straightforward reply.

The cooker hood mentioned is indeed double insulated and since it's
mounted on the panel in question there would have been a conflict of
instruction should the panel have been needed to be earthed

"Andrew Gabriel" wrote in message
...
In article ,
Lee writes:
Someone mentioned that SS splash backs should be earthed, are there any
sensible reasons for this really being necessary?
I certainly didn't earth mine and since the hob isn't installed *into*
in and is not touching it (20mm gap) and no cables run behind it, I
can't see the point.
Noting that the SS extractor hood I fitted came with dire warnings and
specifically *forbids* it being earthed...

There's no requirement for earth bonding in a kitchen.
Having said that, I have earth bonded around my stainless
steel kitchen sink. The sink is probably earthed through
the plumbing anyway, but the bonding makes sure that it
and the tap and the local socket earths are all bonded,
so there should be no electrocution risk between them.

As for what's safest - that's a difficult call.
If there's no way the panel can ever become live, it's
better to leave it floating. If there's any chance it
could become live (screw into buried cable, etc), then
it's better to earth it. The cooker hood is probably
designed such that it can't become live, by double
insulating.

There is no one right answer.

earth bonding shudder- I hate that term.

I cannot find anything that says the splashback should be earthed or be part
of any supplementary bonding.



--
Adam

On 17/06/2014 18:47, ARW wrote:
"Andrew Gabriel" wrote in message
...
In article ,
Lee writes:
Someone mentioned that SS splash backs should be earthed, are there any
sensible reasons for this really being necessary?
I certainly didn't earth mine and since the hob isn't installed *into*
in and is not touching it (20mm gap) and no cables run behind it, I
can't see the point.
Noting that the SS extractor hood I fitted came with dire warnings and
specifically *forbids* it being earthed...

There's no requirement for earth bonding in a kitchen.
Having said that, I have earth bonded around my stainless
steel kitchen sink. The sink is probably earthed through
the plumbing anyway, but the bonding makes sure that it
and the tap and the local socket earths are all bonded,
so there should be no electrocution risk between them.

As for what's safest - that's a difficult call.
If there's no way the panel can ever become live, it's
better to leave it floating. If there's any chance it
could become live (screw into buried cable, etc), then
it's better to earth it. The cooker hood is probably
designed such that it can't become live, by double
insulating.

There is no one right answer.

earth bonding shudder- I hate that term.

+1




--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

On 17/06/14 12:47, Lee wrote:
Someone mentioned that SS splash backs should be earthed, are there any
sensible reasons for this really being necessary?
I certainly didn't earth mine and since the hob isn't installed *into*
in and is not touching it (20mm gap) and no cables run behind it, I
can't see the point.
Noting that the SS extractor hood I fitted came with dire warnings and
specifically *forbids* it being earthed...

Nope - it is not an "extraneous conductive part" and it's a kitchen, not
a bathroom.

Pipes are bonded to other pipes and the CPC within a bathroom or shower
(not kitchen) because they may bring in a potential difference from
another part of the house and because being nude and wet, you are at a
higher risk of even small potential differences.

You would not need to bond a stainless splashback in a bathroom - unless
you felt there was a significant risk of it becoming live (eg wiring
right behind it).

This harks back to the 1970's or so when people were bonding anything
and everything in sight because the concept was not well understood.

On 17/06/2014 13:58, Tim Watts wrote:
On 17/06/14 12:47, Lee wrote:
Someone mentioned that SS splash backs should be earthed, are there any
sensible reasons for this really being necessary?
I certainly didn't earth mine and since the hob isn't installed *into*
in and is not touching it (20mm gap) and no cables run behind it, I
can't see the point.
Noting that the SS extractor hood I fitted came with dire warnings and
specifically *forbids* it being earthed...

Nope - it is not an "extraneous conductive part" and it's a kitchen, not
a bathroom.

Pipes are bonded to other pipes and the CPC within a bathroom or shower
(not kitchen) because they may bring in a potential difference from
another part of the house and because being nude and wet, you are at a
higher risk of even small potential differences.

You would not need to bond a stainless splashback in a bathroom - unless
you felt there was a significant risk of it becoming live (eg wiring
right behind it).

This harks back to the 1970's or so when people were bonding anything
and everything in sight because the concept was not well understood.

Indeed I have seen metal shower rails and wall mounted bath hand
grips with an earth wire attached in the past and wondered if it was
more an ass-covering exercise than anything else.

Lee

In article ,
Lee writes:
Indeed I have seen metal shower rails and wall mounted bath hand
grips with an earth wire attached in the past and wondered if it was
more an ass-covering exercise than anything else.

You need to ask the electrician why he missed out bonding
every link in the bath plug chain.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]

On Tue, 17 Jun 2014 14:14:20 +0000 (UTC),
(Andrew Gabriel) wrote:

In article ,
Lee writes:
Indeed I have seen metal shower rails and wall mounted bath hand
grips with an earth wire attached in the past and wondered if it was
more an ass-covering exercise than anything else.

You need to ask the electrician why he missed out bonding
every link in the bath plug chain.


Are there any statistics for hospital admissions due to lacerations
from the metal warning labels?

--

Graham.

%Profound_observation%

"Tim Watts" wrote in message
...
On 17/06/14 12:47, Lee wrote:
Someone mentioned that SS splash backs should be earthed, are there any
sensible reasons for this really being necessary?
I certainly didn't earth mine and since the hob isn't installed *into*
in and is not touching it (20mm gap) and no cables run behind it, I
can't see the point.
Noting that the SS extractor hood I fitted came with dire warnings and
specifically *forbids* it being earthed...

Nope - it is not an "extraneous conductive part" and it's a kitchen, not a
bathroom.

Pipes are bonded to other pipes and the CPC within a bathroom or shower
(not kitchen) because they may bring in a potential difference from
another part of the house and because being nude and wet, you are at a
higher risk of even small potential differences.

You would not need to bond a stainless splashback in a bathroom - unless
you felt there was a significant risk of it becoming live (eg wiring right
behind it).

This harks back to the 1970's or so when people were bonding anything and
everything in sight because the concept was not well understood.


Due to bad wording of the 15th edition

http://electrical.theiet.org/wiring-...g.cfm?type=pdf

--
Adam

Lee wrote

Someone mentioned that SS splash backs should be earthed,
are there any sensible reasons for this really being necessary?

I certainly didn't earth mine and since the hob isn't installed
*into* in and is not touching it (20mm gap) and no cables
run behind it, I can't see the point.

The point is that if a lead does come adrift and you end
up with a bare end with the mains on it floating around,
if its earthed, that will see the breaker or RCD tripped.

Noting that the SS extractor hood I fitted came with dire
warnings and specifically *forbids* it being earthed...

Presumably because its double insulated. The hob isnt.

On 17/06/2014 18:23, Rod Speed wrote:
Lee wrote
Someone mentioned that SS splash backs should be earthed, are there
any sensible reasons for this really being necessary?

I certainly didn't earth mine and since the hob isn't installed *into*
in and is not touching it (20mm gap) and no cables run behind it, I
can't see the point.

The point is that if a lead does come adrift and you end up with a bare
end with the mains on it floating around, if its earthed, that will see
the breaker or RCD tripped.
Noting that the SS extractor hood I fitted came with dire warnings and
specifically *forbids* it being earthed...

Presumably because its double insulated. The hob isnt.

The splashback is mounted above the worktop, if this hypothetical loose
wire manages to find a way to drill through from the underneath of the
worktop to touch the splash back it won't be the electricity causing the
shock :

Lee

On 17/06/2014 12:47, Lee wrote:

Someone mentioned that SS splash backs should be earthed, are there any
sensible reasons for this really being necessary?

No not usually...

Assuming this is in a kitchen, then (contrary to popular belief) this is
not a location that normally requires supplementary equipotential
bonding, and the possibility of the splash back by itself introducing
any potential (even earth) into the zone seems slim if its not in
contact with any other conductive parts of the building.


I certainly didn't earth mine and since the hob isn't installed *into*
in and is not touching it (20mm gap) and no cables run behind it, I
can't see the point.
Noting that the SS extractor hood I fitted came with dire warnings and
specifically *forbids* it being earthed...

It was probably a double insulated (class II) appliance...


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/