GE Industrial Solutions GE Zenith Series DPB - Manual (Page 41)

33 Installation & Operation Manual, GE Series DPB Busway
March 25, 2013, Rev 0 GE Confidential
Series DPB Busway Installation & Operation Manual
Option 1 - TAP OFF BOX MONITORING ONLY
SAFETY WARNING
CAUTION
SEVERE INJURY OR DEATH CAN RESULT FROM ELECTRICAL SHOCK DURING CONTACT WITH
HIGH VOLTAGE CONDUCTORS, MONITORING PCBS, OR RELATED EQUIPMENT. DISCONNECT
AND LOCK OUT ALL POWER SOURCES DURING INSTALLATION AND SERVICE.
END FEED BOX COMPONENTS
The OPTION 1 configuration (Figure 23) enables power monitoring of the branch circuit loads connected to each BCMS-
Equipped Tap Off Box. Busway source power input monitoring is not available since the Input Power Monitor board is not
installed in the End Feed.
The Option 1 configured End Feed Box contains the data acquisition system consisting of an Accumulator PCB, and a Power
Inserter PCB (Figure 24). The power disconnects for the circuit boards are the readily accessible fuses mounted on the
outside of the End Feed Box. Ingress to these circuit boards is by removing the cover on the restricted-access Bus Monitor
Housing.
This should only be done by a qualified electrical technician as removing the cover will expose high voltage
connections on the circuit boards. If the system logic PCBs have been purchased separately, they must be mounted in an
access-restricted, grounded metal box and a readily accessible appropriate upstream power disconnect must be provided.
For details on the circuit board parameters reference Appendix A: Tap Off Box Monitoring Specifications.
Bus Monitor Fuse Access
Power Inserter PCB
Accumulator PCB
Bus Monitor Module (Cover
Removed)
Communications Cable
End Feed
Tap Off Box Tap Off Box Tap Off Box Tap Off Box
Busrail
Figure 23 - Option 1 - Branch Circuits via BCMS-Equipped Tap Off Boxes
Figure 24 - Option 1 - End Feed Box Monitoring Components