I have a friend that wants an outlet added underneath his stairs for some
network equipment and such.
There happens to be a single outlet on the opposite wall, only about 6" away
from where the new one will be. I said it should be no problem at all, upon
further invesigation I see that this single outlet is on the "basement
lighting" circuit. I'm all set to add this box with some extra flex 12/2 w/
ground, a new work metal box and the outlet. I have the box mounted to the
My questions are:
Is it ok to add another outlet to the lighting circuit (considering there is
already one) and can I use metalic flex from a plastic box to a metal one.
Or would romex be better. The would both hook up the same way. (not using
the flex as a ground)I'm not worried about too much curent draw as the only
things underneath the stars will be a router and a DSL modem.
The only caution I see is about the metalic cable in a plastic box. They
usually don't have a way to terminate metal clad cables and there is no way to
ground armored cable. Use Romex.
The load is not an issue on a general lighting circuit code wise and as you
pointed out, from a practical matter a router is trivial.
Where I live you can have only 12 outlets/fixtures on each circuit, and of
course if the circuit has special demands you may be allowed fewer. Count
how many devices are already on the circuit to be sure the extra plug meets
code. If you already have 12, you could remove one of the other plugs and
cover the created junction box with a blank plate. If you do that, remember
the created junction box must be easily accessible, you can't hide it behind
As of 1999,
NEC does not have a limit on the number of outlets allowed on a circut.
You *ARE required to provide 3 watts of power per square foot of
occupiable space, which for large rooms means you have to provide
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