User's Manual Part 1

Earth Ground Cabling
Jun 2004
4-47
1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU
DRAFT
Objective
The objective of this procedure is to attach the earth ground cabling to
the BTS.
Indoor Grounding
Considerations
Refer to the site documentation for other grounding considerations.
Rack Electrical Isolation on Concrete Slab – The onluy BTS and
cCLPA grounding permitted is through the power cable and chassis
ground connection. If the rack is installed on a concrete slab, it must be
electrically isolated from the slab. The rack should be placed on a
dielectric pad and the seismic mounting bolts should be installed through
the rack with dielectric isolating washers as is done with the BTS frame.
If this method cannot be used, the BTS must be electrically isolated from
the equipment rack.
Cable Description
The following cables in Table 4-23 are necessary to do this procedure.
Table 4-23: Ground Cable and Lug Description and Part Number
Cable Qty. Part Number Description
A 1 Customer
Supplied
Ground cable, 6 -AWG, insulated copper wire.
1 Customer
Supplied
Two Hole, Long Barrel lug connector, 6 AWG, 1/4–inch diameter,
5/8–inch stud hole spacing, 13/32 Tang width (ILSCO P/N
CRB–6L2–14–58)
Customer
Supplied
1–inch, 1–1/2–inch, 1/2–inch, and 3/4–inch metallic sealtight type
conduit or RF Solid Shielded cable – Sufficient quantity to meet the
outdoor site and local code requirements
Required Tools and Materials
The following tools are required to attach ground cabling to the BTS.
S Torque wrench set to 5.0 N–M (44 in–lbs) and 13 mm socket
S Flathead screwdriver bit
S 2 M6x10 screws for ground lug
S Crimping tool
S Anti–Oxidant grease, copper/aluminium mix (Penetrox, part number
P8A)
S Up to 10 of surge arrestors.
Eight of the ten surge arrestor holes on the PDE flange are
double flat sided. Requires a surge arrestor with a shaft that
is flat on the two opposite sides.
NOTE
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