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by SparkyPaul
Sun Feb 01, 2009 11:39 am
Forum: Electrics Forum
Topic: problem adding new light
Replies: 5
Views: 2552

what do you mean by not work?
does the fuse pop / mcb trip when you turn the wardrobe light off?
by SparkyPaul
Sun Feb 01, 2009 11:36 am
Forum: Electrics Forum
Topic: Fitting a dimmer switch to gu10 mains light fitting with led
Replies: 3
Views: 3941

It will depend how the LEDs are powered
a normal dimmer switch works by clipping the ac sin wave so you may see the leds flickering a bit
by SparkyPaul
Sat Jan 31, 2009 11:00 pm
Forum: Electrics Forum
Topic: Mains wiring
Replies: 7
Views: 3092

for something as big as that I'd aim for somewhere around 40A-45A
the onsite guide is only guidance it isn't set in stone
looks like youre having cold turkey for xmas :lol:
by SparkyPaul
Sat Jan 31, 2009 5:56 pm
Forum: Electrics Forum
Topic: Two brown wires in fitting?
Replies: 1
Views: 5222

take a look at how they are connected in the top and replace it with a piece of normal twin and earth
by SparkyPaul
Sat Jan 31, 2009 5:54 pm
Forum: Electrics Forum
Topic: UNUSUAL WIRING COLOURS IN SECONDHAND ITEM
Replies: 7
Views: 3072

You need an electrician to check what you are doing - dont do anything till they have had a look
those colours sound like they are american but i'm not 100% certain
they use green for earth
black for hot
white for neutral
but like I said get an electrician to take a look first
by SparkyPaul
Sat Jan 31, 2009 2:24 pm
Forum: Electrics Forum
Topic: Help Please - Wiring for 4LT Bar Spotlight (Asda)
Replies: 3
Views: 3450

that is an odd combination of wires
3 earths usually means 3 cables
by SparkyPaul
Sat Jan 31, 2009 2:22 pm
Forum: Electrics Forum
Topic: Light bulbs keep blowing
Replies: 4
Views: 3673

doubt it is anything to do with the load as the load usually brings the voltage down
if you overload the circuit then the mcb should trip or fuse pop
are you using decent branded lamps?
Compact Fluorescent energy saving lamps should last longer and will use less energy
by SparkyPaul
Sat Jan 31, 2009 2:18 pm
Forum: Electrics Forum
Topic: electrical
Replies: 1
Views: 1821

Some of them can there will be an extra terminal in the base with switch live or something like that written on it all you need to do is use the switch live neutral and earth to feed to the other light dont be running twin and earth outside on its own tho it needs to be in conduit or run inside and ...
by SparkyPaul
Sat Jan 31, 2009 12:29 am
Forum: Electrics Forum
Topic: electrical trunking
Replies: 4
Views: 2917

Oval tubing is better
All it is for is to protect from the plasterers trowel damaging the cable Oval also helps if a cable has been damaged to pull another cable through without ripping the wall to bits
by SparkyPaul
Sat Jan 31, 2009 12:27 am
Forum: Electrics Forum
Topic: cable calcs
Replies: 18
Views: 7845

[quote="sparx"]
An overhead line cable of only 16mm2 can carry several hundred amps as heat can dissipate easily
[/quote]
Don't try it tho :lol:
It'll cost you a fortune heating the great outdoors and volt drop might be a tad on the high side
by SparkyPaul
Sat Jan 31, 2009 12:24 am
Forum: Electrics Forum
Topic: Bathroom Mirror with Lights
Replies: 2
Views: 2498

It can be installed outside the zones in a bathroom as long as it is suitable for the environment
See section 701 of the IEE regs
Needs to be notified to your local building control for part p if you live in england or wales too but your electrician should look after that
by SparkyPaul
Thu Jan 29, 2009 10:05 pm
Forum: Electrics Forum
Topic: Mains wiring
Replies: 7
Views: 3092

32A is pushing it a bit
You dont want cold turkey and an upset mrs at xmas do you :lol:
by SparkyPaul
Thu Jan 29, 2009 10:01 pm
Forum: Electrics Forum
Topic: Mira Sport Shower
Replies: 1
Views: 2282

Sounds reasonable to me
How is it wired inside?
by SparkyPaul
Thu Jan 29, 2009 10:00 pm
Forum: Electrics Forum
Topic: Where should the wires go?
Replies: 3
Views: 2822

The wires can go anywhere in the safe zones ie horizontally or vertically between accessories etc If it is twin and earth burried in a wall less than 50mm then it needs to be 30milli amp or less RCD protected too A shower needs to be <=30milliamp RCD protected anyway Is notifiable under part p too f...
by SparkyPaul
Wed Jan 28, 2009 7:45 pm
Forum: Electrics Forum
Topic: cable calculation
Replies: 2
Views: 2698

Start by calculating the design current Select an MCB which is higher than that of the design current Apply the correction factors to the size of the MCB Use this to select a cable from the appendix of the regs Verify the volt drop doesn't exceed the maximum allowed If the cpc is the same size as th...
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