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INSTALLATION FUNDAMENTALS
Running Sensor
Cable in New
Construction
Scheduling and
Preparation
Plan to schedule the
sensor wiring after the elec-
trical wiring is finished. That
way you can avoid cable
routes which could
potentially induce interfer-
ence over the Sensor Cable.
The basic rules are:
Never run the Sensor
Cable through the same
hole as an electrical cable.
Never run the Sensor
Cable into the same J-box
as electrical cable.
Avoid running the Sensor
Cable beside the electrical
cable. Keep it at least 3 or
4 feet distant from any
electrical power cable.
As side-by-side wiring is
unavoidable in particular
spots in every house, just
move the Sensor Cable
route away as soon as
possible. If construction
forces a side by side run for
more than ten feet, install
metal conduit or shielded
Sensor Cable. Low-voltage
cables such as doorbells,
intercoms, telephone,
speaker, security, or televi-
sion cannot cause interfer-
ence on your Sensor
Cables, so you can safely
run all of them at the same
time, through the same
holes, side-by-side.
Safety First!
Wear gloves, safety goggles
and head protection when
drilling. Avoid nails, they ruin
bits and they can create
injury. Pay particular atten-
tion when using "hole-hogs"
and other powerful electric
drills; the torque of the drill
when suddenly stopped by
a nail can break a strong
person's wrist.
Drilling
Use a bit that is large
enough for
Figure 23
the cables
you plan to
run. An auger
bit is the
preferred bit
for rough-in
wiring. It will
actually pull
itself through
the wood, so
that the drill
motor, not
you, does
most of the
22
work. You will be drilling a lot
of holes, so this is important.
Always drill the holes in the
center of the stud. If you
have to notch the stud or
drill the hole closer than one
inch from the edge of the
stud, protect the cable with
a nail plate (See Figure 23).
When drilling holes in ceiling
joists, drill in the center of
the joists and try to locate
the hole near the end of the
joist. DO NOT drill through a
"gluelam" or any load
bearing beam without the
direction of your contractor.
Try to line the holes up
perfectly, because it makes
pulling the cable much
easier. A good technique is
to snap a chalk line across
the face of the studs or
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