"John Rumm" wrote in message
o.uk...
On 02/09/2012 03:08, wrote:
On Saturday, 1 September 2012 18:23:17 UTC+1, John Rumm wrote:

insisting that supplementary bonding must be visible in the room
etc.

Regarding supplementary bonding being visible: does this mean that
the tagged bonding clamps you get for metal pipes etc have to be in
plain sight according to the regs? I ask because I had this
conversation with someone about equipotential bonding in a bathroom
and I offered the opinion that this was indeed what the regs said. He
said he didn't care what the regs said, it made the finish look sh!t
and he wasn't having it. The bonding tags were duly applied below the
floorboards, out of sight...and not, as far as I knew, to the regs.
FWIW I think he had the right attitude ;0)

There is no requirement for the bonding clamps to be even in the room.
They need to be *close* to the point the potential of which you are trying
to limit for obvious reasons, but can be in adjacent rooms, in cupboards,
under the floor, in the loft space etc. Its the function that is
important. The "do not remove" tags should be visible on/near each
connection though.

If making the connections less visible, then its worth keeping detailed
notes, otherwise there is a danger that someone will assume they are
simply not there at a future inspection.

The alternative to make life simpler is just to follow the 17th edition
requirements (all circuits that enter the zone are 30mA RCD protected, and
the main EQ bonding is in place), then you don't need supplementary
bonding at all.


Just to check something - if I am going for RCBOs as discussed in another
thread, are these O.K. for bathroom areas?
IIRC RCBOs are RCDs and a bit more?

Cheers

Dave R
--
No plan survives contact with the enemy.
[Not even bunny]

Helmuth von Moltke the Elder

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