In the UK 2 way switching denotes that there are 2 switches controlling one
outlet i.e. a lamp.
If there are more, i.e. on landings of a staircase where there could be
three or more these are usually referred to as intermediate switching.
Hope that helps
> Keith Spicer
> Chief Engineer
> Quality Assurance
> Defence Tactical Communications
> Thales Land & Joint Systems
> Worton Grange
> Reading
RG2 0SB
>
>
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From: Hudson, Alan [mailto:[email protected]]
Sent: 06 December 2005 11:09
To: [email protected]
Subject: RE: home outlet wiring
> From: [email protected]:
> [snip]
> Red wires are also used in wiring of 3-way or 4-way switches.
>
> http://www.handymanwire.com/articles/3wayswitch.html
>
Now *that* confused me! (Although it may be I've taken too much Prozac
today!)
What are being called "3-way" and "4-way" switches I would call both of them
"2-way" switches, as they both only have "On" and "Off" positions.
I suppose I might say "3-terminal" or "4-terminal" switches, or more likely
"single-pole double throw" and "double-pole double throw" (SPDT and DPDT)
but not 3-way and 4-way.
Is it just me and the Prozac having an off day? Are such switches actually
called "3-way" and "4-way" everywhere (including here in the UK)?
If so, I must get out more...
:-)
Regards,
Alan
Regards,
Alan
--
Principal Engineer,
BAE Systems Limited,
Integrated System Technologies,
North Way,
Hillend Ind. Park,
Hillend,
Dunfermline,
Fife KY11 9HQ.
UK
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