Hi,

I've just had a shed built and the builder has run the lighting for the
shed off the power circuit that
he fed in there. The power circuit looks fine - essentially an
extension of the power circuit in the utility room. The shed has been
built onto the utility room.

I expressed concern, but the builder has assured me that it is
perfectly fine to power a light off a power circuit. Is he right?

many thanks in advance.

On 21 Nov 2006 09:54:26 -0800, "JavaEnquirer"
wrote:


I've just had a shed built and the builder has run the lighting for the
shed off the power circuit that
he fed in there. The power circuit looks fine - essentially an
extension of the power circuit in the utility room. The shed has been
built onto the utility room.

I expressed concern, but the builder has assured me that it is
perfectly fine to power a light off a power circuit. Is he right?

Possibly no problem for him electricky-wise - but if your electric tool slips,
does you some damage and trips the breaker you will be left in the dark...

Geo

JavaEnquirer wrote:
Hi,

I've just had a shed built and the builder has run the lighting for the
shed off the power circuit that
he fed in there. The power circuit looks fine - essentially an
extension of the power circuit in the utility room. The shed has been
built onto the utility room.

I expressed concern, but the builder has assured me that it is
perfectly fine to power a light off a power circuit. Is he right?

many thanks in advance.

Well if it isn't I'd better unplug all my desk lamps and the like...

I think the issue with lighting circuits being 'done different' is that
the loads are fairly predictable, and the requirements for safety are
somewhat less than a ring main. Hence light duty cable ad 6A fused
radial not ring..

The message om
from "JavaEnquirer" contains these words:

I expressed concern, but the builder has assured me that it is
perfectly fine to power a light off a power circuit. Is he right?

Yes, provided it's taken through a fused wossname as the 6A cable for
the lighting circuit won't be sufficiently protected by whatever's
protecting the socket circuit.

--
Skipweasel
Pay no attention to that man behind the curtain.

On 21 Nov 2006 09:54:26 -0800 someone who may be "JavaEnquirer"
wrote this:-

I expressed concern, but the builder has assured me that it is
perfectly fine to power a light off a power circuit. Is he right?

Yes and no.

Without looking up the precise details, if the circuit that supplies
the sockets has a protective device rated at more than ISTR 16A then
some types of lamp holder cannot be used (and if you have some types
of lamp holder it must be less than that).

The cabling to the light should be protected by a suitable
protective device, usually a fused connection unit from which the
lighting is taken.

If the shed is used for more than just lobbing the lawnmower in then
the power supply should be direct from your consumer unit, with a
small consumer unit in the shed for lighting, socket outlets and
whatever. This is to try and avoid you plunging yourself into
darkness when you drill through a cable.


--
David Hansen, Edinburgh
I will *always* explain revoked encryption keys, unless RIP prevents me
http://www.opsi.gov.uk/acts/acts2000/00023--e.htm#54

JavaEnquirer wrote:

Hi,

I've just had a shed built and the builder has run the lighting for the
shed off the power circuit that
he fed in there. The power circuit looks fine - essentially an
extension of the power circuit in the utility room. The shed has been
built onto the utility room.

I expressed concern, but the builder has assured me that it is
perfectly fine to power a light off a power circuit. Is he right?

many thanks in advance.

For storage space only it doesnt matter, but if youre likely to use
power tools there I would object, as you'll be plunged into farkness
the moment your tool develops a dangerous fault, and is doing 20,000
rpm.

PS what is farkness? Well, its like darkness only far darker. Its when
you really can not see a single thing anywhere. Unlike ordinary
darkness, when there are lights on in other rooms and you can see just
about.


NT

wrote


PS what is farkness? Well, its like darkness only far darker. Its when
you really can not see a single thing anywhere. Unlike ordinary
darkness, when there are lights on in other rooms and you can see just
about.


And where the exclamation "oh farking hell" may be frequently heard?

H

HLAH wrote:

[...] where the exclamation "oh farking hell" may be frequently heard?

At Highgrove House, I would imagine.

--
Andy