I am planning on converting an existing porch into a downstairs toilet
with wash hand basin.

I have discussed this with the BCO, who initially wanted this to be Part
P approved, but following my query agreed that wiring in this area was
not subject to Part P, I will be wiring lighting into the area myself.
This will be two halogen/LED GU10 downlights with a one way switch
outside the toilet, plus a feed to a lighted wall mirror.

I intend using old 'stock' black/red 1.5mm wiring with the feed taken
from the existing downstairs lighting radial circuit.

I have one question, but would happily receive advice. The question is,
what wiring should be used from the light fittings to the switch?
Historically I would have chosen twin red 1.5mm, what now?

Paul R

Paul R wrote:
I am planning on converting an existing porch into a downstairs toilet
with wash hand basin.

I have discussed this with the BCO, who initially wanted this to be Part
P approved, but following my query agreed that wiring in this area was
not subject to Part P, I will be wiring lighting into the area myself.
This will be two halogen/LED GU10 downlights with a one way switch
outside the toilet, plus a feed to a lighted wall mirror.

I intend using old 'stock' black/red 1.5mm wiring with the feed taken
from the existing downstairs lighting radial circuit.

I have one question, but would happily receive advice. The question is,
what wiring should be used from the light fittings to the switch?
Historically I would have chosen twin red 1.5mm, what now?

Paul R

If you have twin and earth black/red, use that and sleeve the black with
red PVC sleeve as per how you would always have done it (i.e. red is
permanent live and black/red sleeve is switched live).

On Wed, 22 Sep 2010 12:02:50 +0100 someone who may be Paul R
wrote this:-

The question is,
what wiring should be used from the light fittings to the switch?
Historically I would have chosen twin red 1.5mm, what now?

Dave has given a good reply. However, as a broader point brown and
brown coloured cable is available, though TLC only seem to do it in
1.0. http://www.tlc-direct.co.uk/Products/CA1BR.html

Alternatively brown and blue could be used, with the blue sleeved in
brown.


--
David Hansen, Edinburgh
I will *always* explain revoked encryption keys, unless RIP prevents me
http://www.opsi.gov.uk/acts/acts2000...#pt3-pb3-l1g54

On 22/09/2010 12:47, David Hansen wrote:
On Wed, 22 Sep 2010 12:02:50 +0100 someone who may be Paul R
wrote this:-

The question is,
what wiring should be used from the light fittings to the switch?
Historically I would have chosen twin red 1.5mm, what now?

Dave has given a good reply. However, as a broader point brown and
brown coloured cable is available, though TLC only seem to do it in
1.0.http://www.tlc-direct.co.uk/Products/CA1BR.html

Just spotted it at Toolstation

Twin & Earth (6242Y) 2 Brown Cores

Cat no's
21810 1.5mm² x 10m - £8.48
20111 1.5mm² x 25m - £12.98
89801 1.5mm² x 50m - £21.88

--
Adrian C

David Hansen wrote:
On Wed, 22 Sep 2010 12:02:50 +0100 someone who may be Paul R
wrote this:-

The question is,
what wiring should be used from the light fittings to the switch?
Historically I would have chosen twin red 1.5mm, what now?

Dave has given a good reply. However, as a broader point brown and
brown coloured cable is available, though TLC only seem to do it in
1.0. http://www.tlc-direct.co.uk/Products/CA1BR.html

I have banned the brown brown cable from my van. It stops mistakes happening
on first fix.

--
Adam

"ARWadsworth" wrote in message
...
: David Hansen wrote:
: On Wed, 22 Sep 2010 12:02:50 +0100 someone who may be Paul R
: wrote this:-
:
: The question is,
: what wiring should be used from the light fittings to the
switch?
: Historically I would have chosen twin red 1.5mm, what now?
:
: Dave has given a good reply. However, as a broader point
brown and
: brown coloured cable is available, though TLC only seem to do
it in
: 1.0. http://www.tlc-direct.co.uk/Products/CA1BR.html
:
: I have banned the brown brown cable from my van. It stops
mistakes happening
: on first fix.
:

It also makes for slower fault finding, with brown/blue or the
older red/black and (indicating) sleeves it's quick and easy to
see which wire is - should be - the permanent live and switched
live at either end.
--
Regards, Jerry.

Jerry wrote:

"ARWadsworth" wrote in message
...
: David Hansen wrote:
: On Wed, 22 Sep 2010 12:02:50 +0100 someone who may be Paul R
: wrote this:-
:
: The question is,
: what wiring should be used from the light fittings to the switch?
: Historically I would have chosen twin red 1.5mm, what now?
:
: Dave has given a good reply. However, as a broader point brown and
: brown coloured cable is available, though TLC only seem to do it in
: 1.0. http://www.tlc-direct.co.uk/Products/CA1BR.html
:
: I have banned the brown brown cable from my van. It stops mistakes
: happening on first fix.

It also makes for slower fault finding, with brown/blue or the
older red/black and (indicating) sleeves it's quick and easy to
see which wire is - should be - the permanent live and switched
live at either end.

When is there ever any need to know which is which?

On Thu, 23 Sep 2010 13:34:13 +0100 someone who may be Ronald Raygun
wrote this:-

It also makes for slower fault finding, with brown/blue or the
older red/black and (indicating) sleeves it's quick and easy to
see which wire is - should be - the permanent live and switched
live at either end.

When is there ever any need to know which is which?

For a start it is useful when working on ceiling roses. Is that blue
(or black) insulated wire a switched live, or a neutral?


--
David Hansen, Edinburgh
I will *always* explain revoked encryption keys, unless RIP prevents me
http://www.opsi.gov.uk/acts/acts2000...#pt3-pb3-l1g54