Splicing Power Bus in Type 3R Enclosures
To splice the power bus:
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Remove the two left bolts from each splice assembly. Then loosen, but do not remove, the two right bolts of each splice assembly. If the bus has optional 85,000 A bus bracing supplied (see 85,000 A Bracing Option), also loosen the center nut of each splice assembly.
NOTE: Do not remove the two right bolts or the center bolt (if applicable) from the splice assemblies. Doing so will permit splice bars or spacers (if applicable) to fall from the splice assembly. If this occurs, reassemble the splice bars and spacers (if applicable) in the proper order before continuing.85,000 A Bracing Option
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Slide the splice assembly to the left until the two left holes are in line with the corresponding holes in the horizontal bus in the left section.
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Re-install the two left bolts through the splice assembly and into the horizontal bus.
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Torque the splice connection bolts at horizontal bus connections to 31–32 lb-ft. (41.87–43.22 N•m). Torque 85 kA support nuts (if applicable) to 68–72 lb-ft. (92.2–97.6 N•m).
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Return to step 1 for all phases and the neutral bus (if supplied).