7
Instruction Manual
IB015002EN
Effective November 2021
Pow-R-Line CS switchboards
EATON
www.EatonCanada.ca/PRLCS
Figure 12. Joining switchboard sections
Join sections utilizing the carriage bolts and hex nuts with captive
Belleville-type washer through the holes provided . (See
Figure 12
.)
While maintaining level and alignment of the structures, torque each
connection to the values shown in Appendix
Table 2
.
If switchboard sections are outdoor type, re-install roof cap(s) .
Visually inspect the roof cap to ensure a reliable, permanent
watertight fit prior to energizing the switchboard .
Once the switchboard structures are attached, visually inspect the
board for foreign objects and visually inspect the structure for proper
clearances of live parts .
Electrical connection of
switchboard sections
Several methods may be used to make electrical connections
within switchboards . More than one of these methods may be used
in a section and/or switchboard lineup . These include bus splice
plates, factory installed cable and busway connections . Consult the
manufacturer ’s drawings for details for each switchboard section .
Remove structure deadfront covers and side sheets as needed
to access switchboard chassis and components . Retain all cover
mounting hardware and covers for re-assembly . Protect hardware
and parts from moisture, debris and damage .
Splice plates
Splice plates are short pieces of bus bar that join the main bus
running horizontally through multiple section switchboards .
Depending on the configuration and alignment of the switchboard,
the splice plates used for the main cross bus may vary . These plates
may either be flat or “Z” shaped . (See
Figures 13
.)
View “A”
Typical View When More
Than 1 Bar Per Phase
Splice length needs to
go to the front of the unit.
Figure 13. Splice plates
For larger amperage switchboards, multiple splice plates are to be
used on the same phase . Maintain the orientation, by phase and
sequence of the splice plates . The orientation of the splice plates
must remain identical as they were shipped from the manufacturer .
Clearances must be maintained . If unsure about the correct
orientation or questions about the installation, contact Eaton before
installing the splice plates .
Splice plates are used to attach the main horizontal bus between
switchboard sections or shipping splits . While maintaining the
correct phase orientation and sequence, install splice plates with the
carriage bolts and hex nuts with captive Bellville washers supplied
by the manufacturer . Refer to Appendix
Table 2
for torque values .
Carriage bolts must align with the corresponding rectangular holes
in the fixed horizontal bus and the splice plates . If multiple splice
plates are used, install in the same sequence as shipped from the
manufacturer . The neutral (when furnished) and ground bus should
be connected in the same manner .
Inspect splices plates and main fixed horizontal bus prior to
installation . If there is any suspected damage, contact the
manufacturer immediately for replacements . NEVER ENERGIZE ANY
SWITCHBOARD WITH DAMAGED BUS OR COMPONENTS .
