Folks:
 
Here is my take on this confusing topic. I welcome being corrected, or even
abused, although there is a charge for the latter.
 
In the US, N-way means the number of switches (locations) which control a
single lamp, *not* the number of positions (poles) of the switch, per sa.
 
So an ordinary single switch-lamp combo is a 1-way, but the 1-way is
understood. Two switches, as at the top and bottom of a flight of stairs would
have each being  a 2-way switch.
 
Speaking of stairs, this reminds me of the disconnect between the US and UK on
the numbering of floors in a building, and the counting of the "stories" in a
building. As I recall, the US likes to use the designation "Ground" for what
the UKites would call the first floor. It is equivalent to us in the US
beginning the count at zero, which should tickle an engineer's fancy.
 
But that's just my opinion, I could be wrong.
 
Regards,
 
Jacob Z. Schanker, P.E.
65 Crandon Way
Rochester, NY 14618
 
Tel: 585 442 3909
Fax: 585 442 2182
[email protected]

 
 
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