Splicing feeders in electrical equipment

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shaw0486

Senior Member
Location
baltimore
Where is it in the code that you cant splice feeders in panelboards? Also does anyone know if you can splice a feeder in a transfer switch?
 

jumper

Senior Member
I'm pretty sure there is no section that prohibits splicing any conductors in a panelboard, or a transfer switch.


True AFASIK

312.8 Switch and Overcurrent Device Enclosures with
Splices, Taps, and Feed-Through Conductors. The wiring
wiring space of enclosures for switches or overcurrent devices
shall be permitted for conductors feeding through, spliced,
or tapping off to other enclosures, switches, or overcurrent
devices where all of the following conditions are met:

(1) The total of all conductors installed at any cross section
of the wiring space does not exceed 40 percent of the
cross-sectional area of that space.

(2) The total area of all conductors, splices, and taps installed
at any cross section of the wiring space does not
exceed 75 percent of the cross-sectional area of that
space.

(3) A warning label is applied to the enclosure that identifies
the closest disconnecting means for any feedthrough
conductors.
 

iwire

Moderator
Staff member
Location
Massachusetts
Where is it in the code that you cant splice feeders in panelboards? Also does anyone know if you can splice a feeder in a transfer switch?

When looking for NEC answers you need to think in NEC terminology

It is not possible to splice in a panelboard, a panelboard to the NEC is just the busbars and interior.

A panelboard is installed in a cabinet and cabinets are covered by Article 312, and as was pointed out you can splice in a cabinet.
 
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