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Installation Instructions
17
Figure 12 Typical grounding arrangements
Service
Entrance
Input
J-box
(if used)
Liebert FPC
(with transformer)
N
N
G G G
Service entrance
grounding electrode
system
Local grounding
electrode
conductor per
NEC 250-28
Typical Liebert FPC
with transformer grounding arrangement
Signal reference grid
(if used)
Output
Service
Entrance
Input
J-box
(if used)
Liebert FPC
(without transformer )
N
G
G
Service entrance
grounding electrode
system
Typical Liebert FPC
without transformer grounding
Signal reference grid
(if used)
Output
N
G
N