DEFINITY Made Easy Tools
Issue 3, December 2001

Install and Connect Multi-Carrier Cabinets   

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Ground AC Load Center More Than 50 ft (15.2 m) from Cabinet

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1. Mount the single-point ground block to any surface between the MCC cabinets and the AC load center single-point ground. The single-point ground block must be mounted to a non-metallic surface.


2. At the bottom rear of the PPN cabinet, connect a 6 AWG (#40) (16 mm 2) CABINET GROUND wire to the cabinet ground block. See Typical Cabinet Grounding Wiring Diagram.


3. Route the opposite end of the wire to the single-point ground block and connect.


4. At the first EPN cabinet (if provided)DC Power Cabinet, connect a the 6 AWG (#40) (16 4 mm 2) CABINET GROUND wire to the cabinet ground terminal blockGROUND DISCHARGE bar.


5. Route the CABINET GROUND wire wire to Control Cabinet and connect to the single-point ground block and connectblock.

6. Repeat connecting each EPN cabinet to the single-point ground block.


7. Connect a 6 AWG (#40) (16 mm 2) ground wire to an unused terminal on the single-point ground block.


8. Route the ground wire to the AC load center ground and connect.

Typical Cabinet Grounding Wiring Diagram

Figure Notes:

1. PPN Cabinet


2. EPN Cabinet (if Installed)


3. 6 AWG (#40) (16 mm 2) CABINET GROUND Wire


4. Single-Point Ground Block


5. 6 AWG (#40) (16 4 mm ²) Ground Wire to Approved Ground


6. AC Load Center Single-Point Ground


7. Over 50 ft (15.2 m)


8. Cabinet Ground Terminal Block

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Copyright� 2001 Avaya Inc.

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