Well, I sure hope these switchloop drawings have been helpful and informative for everyone!
As always, feel free to contact me with suggestions, comments and such. Still working on compiling many Schematics that Members have requested (due to lack of data and circuitry resources).
My "To-Do" shelf is now at 50 rows, 5 columns!
A little trivial stuff regarding 3-way and 4-way switches:
A 3-way switch is simply a Single Pole - Double Throw toggle switch;
A 4-way switch is simply a Double Pole - Double Throw toggle switch, wired on "one side" so the travelers will end up to be "crossed-over";
Seen many different switchloop wiring methods done by others. Residential projects have the most variety in complete switchloop connections / wiring designs;
An older thread covered "California 3-way switchloops", and these designs sure do fall into "Different" connection methods!!!
Wiring design on these switchloops is not difficult to achieve - even as "complex" as they may seem. Just place your 3-ways at the ends of the loop's switch control points, then place as many 4-ways between the end points (1 to 1 million individual 4-way switches between the 3-ways).NEC prohibits >1 million 4-way switches
(...joke...).
Bring power in at "the first 3-way", and run through loop to the "last 3-way". From there, run to Luminare(s) which will be controlled.
AC Power can include the Grounded Neutral Conductor running with the switchloop, or simply the Line Ungrounded Conductor run in then out of the loop.
To reduce the created Mag Fields, best to run currents "In Opposite Directions". This would either be by including the Noodle with the switchloop, or by running the switchleg back to the Luminare(s) via same cable / conduit as travelers.
If simple "Pick-Up at end points" methods are used (Line "Hot" only comes to first switch, then switchleg only is run to Luminare from last switch - with Noodle left at light outlet), there is no current flowing in an opposite direction within the switchloop's wiring, so the field's strength is not reduced.
This is in regards to "EMF Related Hazards", and is a very touchy and controversial subject.
Scott s.e.t.
p.s. pay no attention to the following text! Just testing out what extended / alt characters will show up.
!
í
»
_
²
_
°
_
_
²