Complete anchor and guy installation, dead end to dead end, and tighten guy
before wire stringing and sagging is begun on that line section. [Provide
strain insulators at a point on guy strand 2435 mm 8 feet minimum from the
ground and 1825 mm 6 feet minimum from the surface of pole.] [Effectively
ground and bond guys to the system neutral.]
3.1.4
Hardware
Provide hardware with washer against wood and with nuts and lock nuts
applied wrench tight. Provide locknuts on threaded hardware connections.
Locknuts shall be M-F style and not palnut style.
3.1.5
Grounding
Unless otherwise indicated, grounding shall conform to IEEE C2. Pole
grounding electrodes shall have a resistance to ground not exceeding 25
ohms. When work in addition to that indicated or specified is directed in
order to obtain specified ground resistance, provisions of the contract
covering changes shall apply.
3.1.5.1
Ground Rod Connections
Make ground rod connections on pole lines by exothermic weld or by using a
compression connector for ground wire or wire to rod connections. Make
exothermic welds strictly in accordance with manufacturer's written
recommendations. Welds which have puffed up or which show convex surfaces
indicating improper cleaning, are not acceptable. No mechanical connectors
are required at exothermic weldments. Compression connectors shall be type
that uses a hydraulic compression tool to provide correct pressure. Provide
tools and dies recommended by compression connector manufacturer. An
embossing die code or similar method shall provide visible indication that
a connector has been fully compressed on ground wire.
3.1.5.2
Grounding and Grounded Connections
a.
Where no primary or common neutral exists, surge arresters and
frames of equipment operating at over 750 volts shall be bonded
together and connected to a dedicated primary grounding electrode.
b.
Where no primary or common neutral exists, transformer secondary
neutral bushing, secondary neutral conductor, and frames of
equipment operating at under 750 volts shall be bonded together
and connected to a dedicated secondary grounding electrode.
c.
When a primary or common neutral exists, connect all grounding and
grounded conductors to a common grounding electrode.
3.1.5.3
Protective Molding
Protect grounding conductors which are run on surface of wood poles by wood
molding [or plastic molding of equal mechanical strength] extending from
ground line throughout communication and transformer spaces.
3.1.6
CONDUCTOR INSTALLATION
3.1.6.1
Line Conductors
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NOTE: Do not use bracketed sentence for Navy
SECTION 16301N
Page 34
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