I have discovered that there are two ways to wire a switch for a light
1) pull two NM wires to the switch - one power the other goes to light
2) pull one NM wire to the switch - two wires to the fixture , one
from the switch (mark the white lead with black marker at the ends)
and one from power source.
My question would be which one is more preferable? I would like to
avoid fishing two wires to the switch box. Any advice is welcomed. I'm
Then clearly the second option is the more preferable. :-)
It really doesn't make much of a difference, unless you might at some time
want to install a device, such as a timer switch or combination switch/outlet,
which needs a neutral, in which case you need at least three conductors
(constant hot, switched hot, and neutral). That could be achieved either with
two 2-wire cables or one 3-wire cable.
Doug Miller (alphageek at milmac dot com)
Both methods are permitted. I've seen several DIY sources
expressing a strong preference for (2), which makes little
sense to me at all. I think they're just copying what they
see electricians doing tract houses do. It's a bit faster,
so it lets them do more jobs.
Method (2) may originally have been a carryover from knob & tube
days, where the hot wire tends to route between ceiling
fixtures with the outlets and switches tapped off it, and where
there was less concern about multiple circuits (ganged
switches on different circuits) being in the same box.
I _prefer_, and almost exclusively do method (1), but sometimes
(2) works out better with a reno.
I don't like marking wires either ;-)
Age and Treachery will Triumph over Youth and Skill
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.