the bolt head shall be installed on the crossarm side of the pole.
[Fiberglass] [Metal] [Wood] crossarm braces shall be provided on crossarms.
Flat braces may be provided for 2.4 m 8 foot crossarms and shall be 6.4 by
31.8 mm 1/4 by 1-1/4 inches, not less than 700 mm 28 inches in length.
Flat braces shall be bolted to arms with 9.5 mm 3/8 inch carriage bolts
with round or square washers between boltheads and crossarms, and secured
to poles with 50.8 by 101.6 mm 1/2 by 4 inch lag screws after crossarms are
leveled and aligned. Angle braces are required for 3.1 m 10 foot crossarms
and shall be 1.5 m 60 inch span by 457.2 mm 18 inch drop formed in one
piece from 38.1 by 38.1 by 4.8 mm 1-1/2 by 1-1/2 by 3/16 inch angle. Angle
braces shall be bolted to crossarms with 13 mm 1/2 inch bolts with round or
square washers between boltheads and crossarms, and secured to poles with
15.9 mm 5/8 inch through-bolts. Double crossarms shall be securely held in
position by means of 15.9 mm 5/8 inch double-arming bolts. Each
double-arming bolt shall be equipped with four nuts and four square washers.
3.3.1
Line Arms and Buck Arms
Line arms and buck arms shall be set at right angles to lines for straight
runs and for angles 45 degrees and greater; and line arms shall bisect
angles of turns of less than 45 degrees. Dead-end assemblies shall be used
for turns where shown. Buckarms shall be installed, as shown, at corners
and junction poles. Double crossarms shall be provided at ends of joint
use or conflict sections, at dead-ends, and at angles and corners to
provide adequate vertical and longitudinal strength. Double crossarms
shall be provided at each line-crossing structure and where lines not
attached to the same pole cross each other.
3.3.2
Equipment Arms
Equipment arms shall be set parallel or at right angles to lines as
required to provide climbing space. Equipment arms shall be located below
line construction to provide necessary wire and equipment clearances.
3.4
GUY INSTALLATION
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NOTE: Local practice will determine whether guy
strain insulators are provided on guys for wood
poles. Normally where guys are not grounded by
connection to neutrals or overhead grounding
conductors, guys will be insulated (sectionalized)
and are considered ungrounded. Some areas require
insulators on guys exposed to voltages of less than
22.5 kV, but not for greater voltages unless
simultaneously exposed to voltages below 22.5 kV.
Strain insulators will prevent a cathodic couple
between the anchor and ground rod via the guy and
the neutral grounding conductor.
A soil survey should be completed early in the
design to properly select the type of anchor.
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Guys shall be provided where shown, with loads and strengths as indicated,
and wherever conductor tensions are not balanced, such as at angles,
corners, and dead-ends. Where a single guy will not provide the required
strength, two or more guys shall be provided. Where guys are wrapped
around poles, at least two guy hooks shall be provided and pole shims shall
SECTION 16370A
Page 35
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