What makes you think I didn\'t?
Switching Circuit
Oct 10, 2009
174 Replies
Sigh... you still don\'t get it.
From:
http://www.leachintl2.com/english/english2/vol6/properties/how4.htm
"Dry circuit loads: No current is switched. The contacts carry current
only after they are closed or before they are opened. The currents may
be high, as long as they are not switched. Since there is no arcing,
contact resistance is kept low by using gold plating or gold alloy
contacts."
By convention, SPDT wall switches are referred to as "3-way switches."
Apparently, "off" counts as a "way."
Cheers! Rich
I think it\'s because the SPDT switch has three terminals on it, while
the SPST has only two.
Oh, well... :-)
Would make sense because a 4-way switch has four terminals.
Only used in the middle positions between 3-way switches ;-) ...Jim Thompson
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC\'s and Discrete Systems | manus |
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"A house divided against itself cannot stand,"
-Jesus, President Lincoln, President Johnson
Dear Leader Barack Hussein Obama is about to prove it.
Dry circuit loads are not Dry contacts, and it had nothing to do with arching or material used on the contacts.
I'll give up. You don't seem want to accept the facts as they are.
It's like kicking the s*it out of a dead horse.
Have a good day.
Or between 4-way switches. ;-)
They are Democrats of switches, always trying to put things in reverse...
The movie \'Deliverance\' isn\'t a documentary!
No one said they were.
What was said was that dry contacts don\'t switch current into their
loads.
They turn on going both ways.
you=20
3-way=20Because he included your circuit and gave you credit for it in that page. I would thus have expected a different response that reposting your circuit.
Skal
If I hadn\'t followed his link, how would I have been able to determine
what his wiring looked like and suggest a way to get rid of the relay?
The sequence of events was:
1. He posted his link.
2. I followed it, modified the circuit, and posted the mods and some
info about crossposting.
3. Ed posted a fix for my neutral-switching error.
4. The OP read my post, and Ed\'s, and posted them to his site, showing
them as mods to his circuit.
Any other way would be the cart leading the horse, no?
JF
Sure, Democrats love to sell you short. :(
The movie \'Deliverance\' isn\'t a documentary!
"JosephKK"
do you=20
and 3-way=20
good
It seems that i might have missed an update to OP's site, or did the change occur before i saw it the first time?
3-way
Dunno...
You assume the third conductor is ground, but that is not necessarily so. There may be metallic conduit providing ground, or it may be GFCI fed:
House | Garage ---- H-----|GFCI|---+--------------------- | | | | | | / | | +---o o-------------- | | N-----| |------------------------- ----
If the third conductor is ground, he could still re-wire it as above providing all three conductors are insulated. He would have to re-identify the green insulated condutor at both ends with black tape to be code compliant.
Ed
3-way
Well, some comment here. Yes, by today's code it is an error. But it's not like the typical (at least for me) error where I put the &$*%+*! resistor in the wrong place on the schematic or leave the damn thing off altogether, etc. It's a NEC code error because they changed the rules after the game was started. Electrician friends tell me it used to be allowed by code years ago. They call it "Chicago wiring" and say they still run into it on occasion today. I don't know when the rules changed.
Ed
house
electricians
with
There are too many could be ideas. Guessing is not much help. Let OP tell us what is in the ground and how it is hooked up.
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