Those evil foreigners who are trying to stop us having real English posh rulers to tug our forelocks to all use 230V
Low voltage lighting in 18th edition?
Feb 11, 2017
111 Replies
Of course. What other types of toroids are in use in LV lighting circuits?
No but I'd often wondered why the combined brains of the world could not come up with a better lampholder design than ES or BC, one that does not leave the contacts directly exposed when no bulb is present. I'm sure there were many such designs proposed back when tomorrows World was on the telly. When I was young my gran had an electric iron that had a BC male connector on it to plug into a lamp socket. so we have come a long way since then, or have we? Brian
Sugar doughnuts? Magnetic confinement for fusion generators?
I hope that the return to proper, British, 240 volts is an important part of the Brexit negotiations.
It's OK because lamp-holders are all high up so the kids can't stick their fingers in.
There are a number of BC lampholders that are perfectly safe.
One type have springs that have to be depressed to make contact inside the holder. They are not live unless pressed hard.
A better type have a built in 'switch'. The bulb is inserted, then rotated to lock. The rotation operates the switch.
That's a yes then, the lighting tracks were each powered by a toroidal transformer.
Not if they are part of a table lamp.
Roger Hayter explained on 11/02/2017 :
After Brexit, can we all go back to our Imperial 240v please?
I want to continue with the 230V as the stuff will be cheaper than having the limited 240V market.
But we've never changed from 240V, we just *call* it 230V now.
But if they have to mark everything 240V rather than 230V its going to put up the price. Not that paying more has any effect on brexiteers.
I recently bought a batten lampholder that has shielded BC contacts.
Wrong answer. I think I was 6.
NT
It's amazing how many people think we actually have 230v at the socket.
NT
At least we are not on 120V like some poor sods.
Somebody will have :-)
Ditto...
Sports stadia, yeah. At EPL stadiums each luminaire is 2 kW so that's
40A @ 50 V and there are around 200 of these luminairs... For top flight Champions League or FIFA matches the lights must not go out, full stop. Stadiums these days have twinset on site generation which is hot from about three hours before kick off.Any club with any sense has those sets available to the grid under STOR. They are only needed for their primary purpose for 6 hours every week or so...
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