User's Manual

Cabinet Cabling
– continued
Apr 2001
V05.03
115
SC
TM
4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
Table 5-30: Equipment Required for AC Power
Item Description
G Power cable – Maximum: 300 kcmil.
NOTE
– This maximum is defined by the size wire that the AC Load Center will accept.
– Conduit: Moisture tight type.
– The hole in the cabinet I/O panel is the proper size for a 2” Trade Size conduit.
– Do NOT wear a wrist strap when servicing the power
supplies or power distribution cabling. Serious
personal injury may result.
– Power must be turned OFF at the power meter
breaker box. Serious personal injury may result.
WARNING
For North American models the SC 4812ET Power
Cabinet can only be connected to a split phase 240/120 V
3–wire plus ground supply, or 208 V 3–wire plus ground
supply. The voltage between either L1 and L2 to neutral
and ground CANNOT exceed 120 V. Connection of the
“wild” or “hot” leg (>200 V relative to neutral/ground) of a
delta supply will damage the SC 4812ET Power Cabinet.
Check that the voltage between either L1 and L2 to neutral
and ground does not exceed 120 V, before connecting to
the system.
CAUTION
Procedure
Use Table 5-31 to install the power cables.
Table 5-31: Procedure to Install Power Cables
Step Action
1 Ensure the breaker box at the power meter is OFF.
2 Open Power Cabinet lower rear I/O door.
3 Open AC Load Center access panel.
4 Route the AC power conduit either through the rear panel of the cabinet or through the base of the
cabinet to the ACLC.
5 Route the 208–240 volt AC power wires from the power meter breaker box, through the AC power
conduit, through the rubber boot (See Figure 5-6), and to the AC load center (refer to Figure 5-6).
6 Electrical connections must conform to local electrical construction standards.
5