3.1.5.10
Lashing Wire
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NOTE: Common lashing machines provide 1 turn per
380 linear mm (15 linear inches) in a single pass,
which is acceptable for locations where loading due
to weather conditions is moderate. Other locations
may require multiple passes with the lashing machine.
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Lashing wire shall be wound tightly around both the communication cable and
messenger cable by machine methods. The lashing wire shall have a minimum
of one turns per 380 linear mm 15 linear inches and not less than the
number of turns per linear distance that is recommended by the cable
manufacturer for the distance between cable support points and the combined
ice and wind loading and extreme wing loading, specified or normally
encountered for the installed location. Lashing clamps shall be placed at
all poles and splices.
3.1.5.11
Stress Loops
Loops shall be formed in the aerial cable at all points of connection and
at all poles to prevent damage from thermal stress and wind loading. The
communication cable shall be protected from chafing and physical damage
with the use of spiral cut tubing and PVC tape, or plastic sleeves. The
ground clearance of installed cabling shall be as shown.
3.1.5.12
Service Loops
Each coaxial cable shall have service loops of not less than 3 meters 10
feetin length at each end. The service loops shall be housed in a service
loop enclosure.
3.1.6
Identification and Labeling
Identification tags or labels shall be supplied for each cable. The
labeling format shall be identified and a complete record shall be provided
to the Government with the final documentation. Each cable shall be
identified with type of signal being carried and termination points. All
labels shall be non-fading when exposed to moisture, sunlight, soil
minerals, chemicals, and other environmental elements.
3.1.7
Aerial to Underground Transitions
Transitions from aerial cable to underground cable shall be as specified in
paragraph CONNECTIONS BETWEEN AERIAL AND UNDERGROUND SYSTEMS in Section
16370A ELECTRICAL DISTRIBUTION SYSTEM, AERIAL.
3.1.8
Loading Conditions
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NOTE: The designer will include the data listing
the loading conditions, including radial thickness
of ice, horizontal wind pressure, and temperature,
for both combined ice and wind loading and for
extreme wind loading encountered at the project site.
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The loading conditions to be encountered at this installation are as
SECTION 16794A
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