TABLE II
TIE-WIRE REQUIREMENTS
CONDUCTOR
TIE WIRE
Copper (AWG)
Soft-Drawn Copper (AWG)
6
8
4 and 2
6
1 through 3/0
4
4/0 and larger
2
AAC, AAAC, or ACSR (AWG)
AAAC OR AAC (AWG)
Any size
6 or 4
3.5.4
Armor Rods
Armor rods shall be provided for AAC, AAAC, and ACSR conductors. Armor
rods shall be installed at supports, except armor rods will not be required
at primary dead-end assemblies if aluminum or aluminum-lined zinc-coated
steel clamps are used. Lengths and methods of fastening armor rods shall
be in accordance with the manufacturer's recommendations. For span lengths
of less than 61 m 200 feet, flat aluminum armor rods may be used. Flat
armor rods, not less than 762.0 micrometers by 6.4 mm 0.03 by 0.25 inch
shall be used on No. 1 AWG AAC and AAAC and smaller conductors and on No. 5
AWG ACSR and smaller conductors. On larger sizes, flat armor rods shall be
not less than 1.3 by 7.6 mm 0.05 by 0.30 inches. For span lengths of 61 m
200 feet or more, preformed round armor rods shall be used.
3.5.5
Medium-Voltage Insulated Cables
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NOTE: Provide storm guying in extreme wind loading
districts as defined by IEEE C2 and elsewhere when
more than normal conductor loading occurs.
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Medium-voltage cable messengers shall be attached to poles with clamps
providing a strength exceeding the required messenger strength and with not
less than 15.9 mm 5/8 inch through-bolts. Messengers shall be dead-ended,
grounded, [and] [and storm and] line-guyed at corners and dead-ends, and at
intervals not exceeding 305 m 1000 feet along straight runs.
3.5.6
Low-Voltage Insulated Cables
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NOTE: Due to both space requirements and the
unattractive appearance, line conductors on
secondary racks will be limited to special
circumstances.
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Low-voltage cables shall be supported on clevis fittings using spool
insulators. Dead-end clevis fittings and suspension insulators shall be
provided where required for adequate strength. Dead-end construction shall
provide a strength exceeding the rated breaking strength of the neutral
SECTION 16370A
Page 37
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