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Incoming three-phase
power from service
entrance or derived
system, appropriate
over-current protection
and suitable ground.
Neutral
0 - -
0 - - - -
Ground
0 - - -
Service
Entrance
Ground or
Suitable
Building
Legend:
Ground
- - - Phase Wires and Neutral
208/240V
---Insulated Green Wire Ground
Figure
1-1.
Power Distribution Systems
Remotely Operated
Power Service
.4""'=c-.t--+--+-
M
a
in
Ci rcuit Breakers of
Appropriate Size
Grounding
Terminal Bar
(Bonded to
Enclosure)
Customer-supplied
receptacl es/connectors
in accordance with
local codes.
~Branch
Circuits
*
For loads
requiring a
neutral. attach
computer/data
processing
equipment only.
1-9
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