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by sparx
Sun Jul 31, 2011 10:46 am
Forum: Electrics Forum
Topic: Cooker circuit installation
Replies: 2
Views: 2771

Hi just read this thread a bit late and Ericmark has given as usual a difinitive reply. Going to your comment re part-p you are right about publicity lacking. As members of the various authorised scemes we have been banging on at our registration bodies about this for several years. As a rule before...
by sparx
Sun Jul 31, 2011 10:17 am
Forum: Electrics Forum
Topic: 2 showers in one property
Replies: 2
Views: 2182

Hi, it does depend upon the size of the supply Co's cut-out fuse, If 100A no problem if marked 60/80A it may only have a 60A fuse. We used to have 3 electric showers in my bungalow here when 2 teenage daughters at home, one each and one for the rest of us!! Never had a problem except for the bills. ...
by sparx
Thu Jul 07, 2011 12:07 am
Forum: Electrics Forum
Topic: low voltage lights
Replies: 3
Views: 2348

hi, 10X50 = 500w plus losses in each transformer which could be 15%
or 75w thus drawing 575W or 575/230=2.5A
by sparx
Wed Jul 06, 2011 11:59 pm
Forum: Electrics Forum
Topic: Electric Fencing Earth Problem. Looking for CSA of Earth?
Replies: 2
Views: 2696

Hi these things run on something like a car HT coil, ie quite high voltage but VERY low current, the proverbial pice of'wet string' will be good enough for the reference earth.
by sparx
Wed Jun 29, 2011 7:41 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic:
Replies: -1
Views:

Hi, only poss. I can think of is if there is a frost stat. as the boiler is outside the heated house & it's set too high. Should be around 5C. OR is it a Y plan system using Honeywell 3 port v/v? if so there has been a problem of some voltage getting onto the orange 'call' wire which H-W have at...
by sparx
Fri Jun 17, 2011 8:36 pm
Forum: Electrics Forum
Topic: Another Junction Box Query
Replies: 3
Views: 3248

Who signed the installation test sheets? You mention 'electrical surveyor' whatever that is!!! did he sign it off? You also say you are the 'Qualifying Supervisor' a term only used by and allowed by Niceic so presume that means you signed off on the poor workmanship (probably unknowingly). The best ...
by sparx
Fri Jun 17, 2011 8:18 pm
Forum: Electrics Forum
Topic: New ceiling light, confused by wiring behind old one!
Replies: 1
Views: 4075

you have just said how the old one was connected, the new one is the same. However having drawn out as you state it can't be correct. It may be there are 2 lights working together, or maybe an extra feed taken off to maybe another light because there should only be 3 cables at a fitting. one is L+N ...
by sparx
Fri Jun 17, 2011 7:46 pm
Forum: Electrics Forum
Topic: Odd problem with fluorescent light strip
Replies: 3
Views: 2649

HI, try turning tube around, end for end.
by sparx
Tue May 31, 2011 7:04 pm
Forum: Electrics Forum
Topic: In Series Ceiling Lights problems
Replies: 3
Views: 3115

Hi, just to be correct your string of lights are wired in parallel not series, otherwise, like xmas tree lights of old, 'one out all out' (Union joke!). Presume 1st jb has feed, switch line and loop on to first light., then into next jb and so on. If so then as first light works the fault must be at...
by sparx
Sun May 29, 2011 8:49 am
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: BOiler or thermostat?
Replies: 2
Views: 2167

Not sure how long you've had wireless system but is the battery good in the thermostat? If turned up/down most wireless sets receivers have a light that comes on to confirm receipt of signal from transmitter, is this working? To prove local wiring ok, I put a normal light switch with wires connected...
by sparx
Sun Mar 06, 2011 4:24 pm
Forum: Electrics Forum
Topic: New house strange light fittings
Replies: 1
Views: 2789

As you may not realise the 'new 3 pin' fittings are a legal requirement under building regs. as they only take low energy lamps & should not be changed. That's the legal bit out of the way .....HIT IT with a small hammer!!!! You're replacing it anyway, it will either loosen or break so with powe...
by sparx
Sat Mar 05, 2011 8:30 pm
Forum: Electrics Forum
Topic: certificate for work completed
Replies: 9
Views: 5956

The electrician MUST give a certificate for the work done, and register the work with the local authority, this is law. No electrician can certify work done by another, nor will the local authority. You need to get the electricians name or company name and which 'part p' scheme he is in, ie niceic/n...
by sparx
Sat Mar 05, 2011 8:17 pm
Forum: Electrics Forum
Topic: What Dimmer Switch/buls
Replies: 2
Views: 2165

8X50=400watts, so dimmer must be rated for that. the voltage won't alter the power which is rated in watts so changing for LV lights won't alter power used, in fact it will use more due to losses in the transformer. why not just change the existing lamps for 20 or 35watt ones? 8X20=160W or 8X35=280W...
by sparx
Sat Jan 15, 2011 7:10 pm
Forum: Electrics Forum
Topic: Loft Lighting
Replies: 11
Views: 8668

Just to add my 2 pennyworth, KB sums it up nicely in his last comment, I would just add that the IET write the regs NOT the bl##dy niceic, who are only one of the many operators of part pants schemes/scams! Frequently the nic voice their opinion of what they would like the regs to say rather than wh...
by sparx
Sat Jan 15, 2011 6:52 pm
Forum: Electrics Forum
Topic: 240V Light Swiches on a 12v system
Replies: 3
Views: 25731

Take care! although as Eric says 6A or even 12A rated switches are for AC where the power goes through zero 100 times per second, so switch only has to break load for a millisecond; not so with DC which will arc and burn contacts unless very quick break action switches are used. Even overrated 20A A...
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