User's Manual

Site Preparation – continued

Apr 2001

4812ET RF and Power Cabinet Hardware Installation Manual

DRAFT

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.

CAUTION

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.

WARNING

Connection Materials

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).

Concrete Pad and Ground

System Installation

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.

NOTE