yeap sorry. thats about heating thermostats
2 way switching - connecting lamps at both switches
- Thread starter phatboy
- Start date
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Well, I suppose you could (there's an L, N and switch 'at the first switch'), but the functionality of the circuit as a whole would be 'interesting'
Kind Regards, John
It can be done using two same wattage 110 volt incandescent lamps in series.
That said two same wattage 230 incandescent lamps in series give a nice warm light.
That said two same wattage 230 incandescent lamps in series give a nice warm light.
I've always felt that such an arrangement probably ought to be 'banned', since it can leave one lamp 'out', with both sides of it 'live', if the other lamp blows - but I'm not sure that there actually are any regs which forbid it.
Kind Regards, John
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One lamp has Neutral and Midpoint, the other has MidPoint and Switched Live.
Neither lamp is connected to Live if the switches are in an OFF combination.
When one bulb is removed and there is no load, it won't be mid point, it will be 240V.
Anyway its a stupid idea.
Who's going to want to keep a stock of 110V lamps and remember that room takes special 110 lamps.
Who's going to think a lamp has failed when both stop working at the same time?
We don't even know what sort of lamp fitments the OP wants.
Anyway its a stupid idea.
Who's going to want to keep a stock of 110V lamps and remember that room takes special 110 lamps.
Who's going to think a lamp has failed when both stop working at the same time?
We don't even know what sort of lamp fitments the OP wants.
True, but my point was that if the switches were in an 'ON combination' (and it's not necessarily easy to ascertain which 'combination' the switches are in, when neither lamp is working), both sides of one lamp, and one side of the other would be at full L voltage if one of the lamps were to go o/c.
Kind Regards, John
Bit harsh, it works.
The Wright brothers were considered to have had a stupid idea about flying machines. Some of the best and most useful inventions started life as a "stupid" idea,
and when both lamps stop working, you going to either have to guess which one failed, or change both, and then work out which one was ok, by which time its been giggled about so much, its had it anyway.
Yup.
And since then, through greater knowledge, understanding and experience we have reduced the number of stupid ideas about flying machines in order to make them safer.
Ditto electrical installations.
It certainly can be - provided someone else can do it.
Seems you have to log in separately to the wiki - but username/password does not work, and the 'register' page is blank so no help there.
It sounds as if you are trying to get into some sort of global DIYnot wiki or FAQ. This forum's wiki is simply the first entry on the forums's main page - i.e. 3 or 4 entries above the first new post - you just have to click on it, just as you would click on a post.
Kind Regards, John
There is only one.
The only difference between clicking that link and the tab at the top is where in the Wiki it takes you - the tab at the top takes you to the top level, the link in the Electrics UK forum takes you directly to the Electrics UK section of the Wiki.
OK. Fair enough. I'm never tried the tab at the top - not sure if I ever realised it was there!
Is that if one tries to use the tab? When I'm logged in (which I automatically am,if I'm looking at the page), clicking on the direct link to the Electrics UK wiki simply 'works', with no further logging in or problems?
EDit: just tried, and I encountered no problems with the tab. When already logged in, clicking on the wiki tab gets me to the Electrics UK wiki with just one further click. No 'separate logging in'. No problems. Am I missing something?
Kind Regards, John
Try editing the Wiki.
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