Harry Bloomfield retched Switch gangs and ways? onto my recliner:

On 25/01/2004 BraileTrail opined:-
Could someone please explain the difference (and significance) of
gangs and ways as they are used in lighting circuits.

Thanks,
BraileTrail

Gang, means the number of switches in one block or switch panel.

Ways is not quite so straight forward or clear cut..... Basically it
means the number of different active positions which can be achieved by
one switch. A normal room light switch can achieve two positions, on or
off, but only one is active. Hence it is called a one way switch. The
type of switch commonly used for stair lighting is called a two way
switch, because it has two possible active positions. Both the 1 way
and 2 way switch are two 'position' switches.

The type of switch used in a photographers dark room, able to switch
between main lighting and safe lights, with a centre off position,
would be a 2 way three position.... 1 Safe light, 2 Off, 3 Normal lights.


Isn't that a bit obvious old chap?


--

Phil K.

http://philkyle2003.reachme.at/