Power Bus Splicing of 2500 A Bus with 100,000 A Short Circuit Rating
NOTE: On the integral splice bar assembly, located on the left side
of each phase bus, the number of splice bars used on each phase is
one greater than the number of main horizontal bus bars. Splice bars
are held captive on the horizontal bus by a splice bar carrier assembly.
The rear of the carrier assembly includes captive nuts (see Wireway Covers Removed and Horizontal Bus Barriers Open).
Wireway Covers Removed and Horizontal Bus Barriers Open
To splice the power bus:
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Remove all four bolts from each splice assembly.
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Slide the splice assembly (splice bars and carrier assembly) to the left until the two left holes are in line with the corresponding holes in the horizontal bus on the left section.
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Reinstall all four bolts through the splice assembly and into the horizontal bus.
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Torque all bolts on both ends to 31–32 lb-ft. (41.87–43.22 Nm).
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Return to step 1 for all phases and the neutral bus (if supplied).