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DEFINITY Enterprise Communications Server Release 6
Installation and Test for Multi-Carrier Cabinets
555-230-112
Issue 5
May 1998
Install and Connect Cabinets
Page 1-24Approved Grounds
1
Approved Floor Grounds
Approved floor grounds are those grounds on each floor of a high-rise building
suitable for connection to the ground terminal in the riser closet and to the
cabinet equipment single-point ground terminal. Approved floor grounds may
include the following:
■ Building steel
■ The grounding conductor for the secondary side of the power transformer
feeding the floor
■ Metallic water pipes
■ Power feed metallic conduit supplying panel boards on the floor
■ A grounding point specifically provided in the building for the purpose
!
WARNING:
If the approved ground or approved floor ground can only be accessed
inside a dedicated power equipment room, then connections to this ground
should be made by a licensed electrician.