Ground Bus Splicing for Bottom-feed ArcBlok 2500 Main Sections
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Remove the cable vault front cover to access the ground bus assembly.
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For splicing to left adjacent section (if applicable):
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Remove the bolts for the ground splice bar located on the left-side of the cable vault and the ground splice bar located on the right-side of the left adjacent section. (see Removing Bolts for Ground Splice Bar).
Removing Bolts for Ground Splice Bar
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Discard the ground splice bar on the right side of the left adjacent section.
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Loosen the ground closing plate hardware on the left side of the cable vault and slide the closing plate forward to reveal open slot in cable vault.
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Slide the ground splice bar located inside the cable vault to the left so that it aligns with the mounting hole of the ground bus in the left adjacent section.
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Re-install one ground splice bar bolt in both sections, (see Re-install Ground Splice Bar Bolt).
Re-install Ground Splice Bar Bolt
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Torque the ground splice bar bolts to 60–75 lb-in. (6.75–8.44 N•m).
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Slide the closing plate against the ground splice bar and tighten the ground closing plate hardware.
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For splicing to right adjacent section (if applicable):
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Remove the bolts for the ground splice bar located on the right-side of the cable vault.
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If applicable, remove the bolts for the ground splice bar located on the left-side of the right adjacent section and discard the ground splice bar.
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Loosen the ground closing plate hardware on the right side of the cable vault and slide the closing plate forward to reveal open slot in cable vault.
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Slide the ground splice bar located inside the cable vault to the right so that it aligns with the mounting hole of the ground bus in the right adjacent section.
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Re-install one ground splice bar bolt in both sections.
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Torque the ground splice bar bolts to 60–75 lb-in. (6.75–8.44 N•m).
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Slide the closing plate against the ground splice bar and tighten the ground closing plate hardware.
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Replace all covers and barriers and close all doors.