wrote:

Yes, looking at IEE regs amnd 3/April 2000, that seems to be right.
However what set this query off is the diagram on the back of many
light fittings in B&Q & Homebase which show zone 2 as including an area
within 600mm radius of wash basin taps. So, regs changed, or an error
on the boxes?

IIUC the zones concept was not in the 16th edition to start with but was
introduced by an ammendment. It may be that the non current one included
mention of basins. The current one (section 601) defines one of the
"special locations" as "containing a bath or shower" - again no
reference to basins.

Have a look at:

http://www.niceic.org.uk/downloads/NL139supp.pdf

Just to clarify the situation, if the right side of the towel rail were
within 600mm of the shower, but the element was still over 600mm away,
would that setup still be in zone 3?

The short answer is: I don't know for sure.

However logic would suggest that it would count as zone 2 though. Should
it become live due to a fault, the risk of indirect contact would be at
a point less than 600mm to the shower.


--
Cheers,

John.

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