Connection Materials; Concrete Pad And Ground System Installation - Motorola SC 4812ET RF Hardware Installation Manual

Site Preparation
– continued

Connection Materials

Concrete Pad and Ground
System Installation
Apr 2001
SC
TM
Conduits that are pre–installed in a concrete pad below
grade must be capped at the time of conduit installation to
prevent rainwater from collecting in the conduit.
If a precast concrete foundation pad is used, the pad should
be in place before the cables are installed. This will avoid
an unsafe condition caused by personnel reaching under a
pad, as it is lowered, to feed cable through the pad
openings.
This section defines connection materials and specifications and may
vary depending on site–specific requirements. If in doubt, contact
Motorola Cellular Support Center (telephone number is found in the
Foreword of this manual).
The following procedure describes the concrete pad ground system
installation. The following steps are meant to serve as a guideline and
can be impacted by the local codes of the installation site location.
Materials Needed:
CADWELD Joints
8–12 – ground wire to ground rod joints (for 2–6 cabinets)
4 – rebar joints
1 – ground wire to rebar joint
Ground Rods - 8–12 – 5/8" Diameter, 2438 mm (96") long ground
rods (for 2–6 cabinets)
Framing Materials – This list of materials is used to form the pad.
– No. 66–44 wire mesh, or 9.5 mm (3/8") rebar, sized to fit the pad
– Concrete (Must conform to ASTMC94, specification for ready mix
concrete)
It is recommended that the concrete pad maintain a
minimum thickness of 102 mm (4 inches) or the length of
the anchor bolt to be used, whichever is greater.
4812ET RF and Power Cabinet Hardware Installation Manual
CAUTION
WARNING
NOTE
DRAFT
2
51