User's Manual

Site Preparation – continued
Apr 2001
53
SC
TM
4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
Grounding Ring:
The following information details installation of the site grounding ring.
Refer to Figure 2-3 for detail dimensions.
Figure 2-3: Grounding Ring Detail
CONCRETE
PAD
GROUNDING RING #3 BSWG
(#2 AWG;35 mm
2
) SOLID
COPPER W/TIN COATING
2438 mm (96”)
GROUND
RODS (8–12)
GROUND TO CABINET (1 PER CABINET) #3 BSWG
(#2 AWG;35 mm
2
) SOLID COPPER W/TIN COATING
GROUND TO ANTENNA
#3 BSWG (#2 AWG; 35
mm
2
) SOLID COPPER
W/TIN COATING
609 mm
(2’ 0”)
GROUND TO REBAR
(CADWELD)
609 mm
(2’ 0”)
REBAR JOINTS
(CADWELD) (4)
609 mm
(2’ 0”)
REBAR
10 mm (3/8”)
MINIMUM.
FRONT
GROUND TO CABINET (1 PER CABINET) #3 BSWG (#2
AWG;35 mm
2
) SOLID COPPER W/TIN COATING
609 mm
(2’ 0”)
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
CONDUIT STUBS ARE
TO BE 25 TO 50 MM (1”
TO 2”) ABOVE
CONCRETE PAD.
CONCRETE
PAD
Figure 2-4: Conduit Stub Height Detail
– Conduits that are Pre–installed must be capped to
prevent moisture from collecting prior to cabinet
installation.
– Used when I/O goes through the bottom of the
cabinet I/O area, i.e. when conduit is set in concrete
pad or floor.
NOTE
2