Avaya MCC1 Installation And Upgrades page 348

Install and Connect MCC1 (Multicarrier) Cabinet
Task List: Connect DC Power and Ground
3
Tie wrap the ground wire to the inside wiring cable.
NOTE:
The ground wires are connected to the CBC as instructed in
Cabling.
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Connect DC Battery and Power Cabinet Grounds
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NOTE:
The wire in the next step must be sized for a maximum voltage drop of 0.5 VDC in each
leg of the DC distribution. In this example 1 AWG is used.
1
Measure and cut a minimum of a 1 AWG (#70) (44 mm
ground connection terminal in the DC Battery Cabinet and the Ground Discharge Bar in the DC
Power Cabinet. See
344.
2
Crimp terminal lugs on each end of the wire. Terminal lugs are furnished as part of D-181895, Kit
of Parts.
3
At the DC Power Cabinet, connect the wire to the Ground Discharge Bar.
4
Route the wire through 1 of the holes in the side of the cabinets and terminate it on the Ground
Connection Terminal in the DC Battery Cabinet.
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Connect DC Power Cabinet Approved Ground
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NOTE:
The wire must be at least as large as the largest distribution wire in the system (required by
UL). In this example 1 AWG is used.
1
At the DC Power Cabinet, connect a 1 AWG (#70) (44 mm
Discharge Bar. See
344.
2
Route the ground wire out of the cabinet and terminate it on the approved ground. The approved
ground must be identified with a grounding tag (FORM 15657NR or equivalent). See
Grounds.
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348
Figure 95, Typical Power and Ground for a DC-Powered Cabinet,
Figure 95, Typical Power and Ground for a DC-Powered Cabinet,
Install Telecommunications
2
) wire long enough to reach between the
2
) ground wire to the Ground
SI Installation and Upgrades
on page
on page
Approved
June 2004