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80' Tap Rule 80' Tap Rule
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Old 04-04-2007, 06:01 AM   #1
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Default 80' Tap Rule
Pictures could not do justice what I just ran across on a job site. We had a facility where the chiller disconnect (fusible) stationary/movable contacts had a thermal issue and the disconnect needed to be replaced. Went to the job and found the parallel 500 kcmils were bus tapped from a 4000 amp switchboard, conductor length approximately 80 feet. Can't seem to locate that rule in Article 240. CAN ANYONE HELP?
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Old 04-04-2007, 05:35 PM   #2
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Eh, 10, 20, 80, whatever...

Holy smokes.
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Old 04-08-2007, 08:15 AM   #3
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The bus tap, was it before the main service disconnect(s) or after the Main service disconnect(s)?
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Old 04-08-2007, 05:59 PM   #4
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On the load side of a 4000 amp GE HPC fused switch, with GFP.
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