Figure 5-44.Using the star for back-to-back bend.
Figure 5-45.Box offset.
of stub you need, as described previously. To determine
where to place the next stub, you first need an outside-
to-outside measurement. This measurement is the
distance from the back of the first bend to the point
where you want the back of the second bend.
Two methods are used for making the second bend.
The first is to subtract the take-up, use the arrow on the
bender, and pull the bend in the same direction as you
did the first bend. The second method, and probably the
easiest, is to turn the bender around, line up the star on
the bender with your outside-to-outside measurement,
and pull the bend in the opposite direction, as shown in
Table 5-3.Offset Bending Formula
FORMULAAND CONSTANT MULTIPLIER
FOR DETERMINING DISTANCE BETWEEN
BENDS WHEN BENDING OFFSETS
22 1/2°x 22 1/2°
3/16 PER INCH
30° x 30°
1/4 PER INCH
45° x 45°
60° x 60°
3/8" PER INCH
1/2 PER INCH
OFFSET BENDS.An offset bend is two equal
bends in opposite directions. It is used to avoid
contacting a part of the structure or to bring the conduit
out from the structure to match a knockout in a box or
panel. The angle of the bend in an offset depends on
several things; how much offset is needed, how much
room there is where the offset is going to be placed, and
the type of obstacle you are avoiding. Figure 5-45
shows a box offset into a handy box. There is no way to
mark the conduit for a box offset. The amount of bend
and the distance between bends are estimated. The key
to making good box offsets is practice.
Figure 5-46.Bending an offset.