GE Industrial Solutions Entellisys Installation - Manual (Page 26)

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Entellisys Low Voltage Switchgear
Chapter 3. Description
1. Upper section vertical bus-incoming line
2. Lower section vertical bus-load side
3. Barrier between upper and lower vertical
bus sections
4. Incoming bus connections
5. Main horizontal bus connections
Fig. 3-15. Main breaker bus arrangement
Insulated/Isolated Bus System
A bus insulation system, Fig. 3-16, that fully insulates each
phase of the horizontal main bus and isolates each phase of
the vertical bus, is optionally available for Entellisys
switchgear when specified. With the INSULATED/-
ISOLATED BUS system, there are no live connections
accessible in the rear of each section except the cable lugs.
1. Vertical riser bus covers
2. Run-backs to feeder cables
3. Horizontal main bus
4. Lower neutral bus with 4 th wire
sensors
Fig. 3-16. Insulated/Isolated-Bus system
4
1
3
2
5
1
2
3
4