17
C048-741-30 R01, Rev. B (01/2020)
4.8
4.8
Bus Reconfiguration
Bus Reconfiguration
WARNING! ELECTRICAL HAZARD
MULTIPLE POWER SOURCES ARE PRESENT.
ELECTRICAL INSTALLATION SHOULD ONLY BE
PERFORMED BY QUALIFIED PERSONNEL WITH PROPER
TOOLS AND PROTECTIVE SAFETY EQUIPMENT.
MAKE SURE THAT NO-OXIDE COMPOUND IS APPLIED
TO ALL COPPER-TO-COPPER CONNECTIONS.
NOTICE
:
Table 6.
Interconnection Jumper Specifications
TERMINATION
TYPE
HOLE/STUD
SIZE
CENTER
TO
CENTER
RECOMMENDED
TORQUE VALUE
Threaded Insert
3/8 in.
1 in.
350 in·lbs
The Half-BDFB was designed so that its buswork and distribution
panels can be reconfigured at any time later on to meet the desired
needs of the customer. It is possible to reconfigure the buswork to
create a single-bus, dual-bus, or a quad-bus BDFB. Figures 31-33
below represent the different interconnection jumper layouts that can
be achieved by simply adding or removing jumpers. For more detailed
information, refer to Appendix B for bus locations and layout.
To assemble a single-bus configuration, install the hot/return jumpers
between all hot/return buses (see Figure 31). To assemble a dual-
bus configuration, install the hot/return jumpers between hot/return
buses 1-2 and between 3-4
(see Figure 32)
. To assemble a quad-bus
configuration, remove all hot/return jumpers (see Figure 33)
. Refer
to 4.8.1 and 4.8.2 on Page 18 for detailed interconnection jumper
installation instructions.
Figure 31. Single-Bus Jumper
Configuration
Figure 32. Dual-Bus Jumper
Configuration
Figure 33. Quad-Bus
Configuration (No Jumpers)