ProfessionalServices
New User
- Location
- Port Washington, WI
- Occupation
- Electrical Manager
Is anybody able to provide code section in the NEC or SPS 316 that states Feeders or Service Entrance Conductors are not permitted to be spliced before a load center or main disconnect.
The following code articles state that is permissible but there seems to be some misalignment on this situation.
Purpose of this is that during a generator installation, contractors may splice service entrance cable that used to be feeding load center, and then extend cables to transfer switch instead of calling for a line drop and replacing SE cables completely due to the SE cables not being permitted for splicing.
312.8(A) Splices, Taps, and Feed-Through Conductors. The 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 % 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 % of the cross-sectional area of that space.
(3) The bending space for conductors 4 AWG and larger complies with 314.28(A)(2).
(4) A warning label complying with 110.21(B) is applied to the enclosure that identifies the closest disconnecting means for any feed-through conductors.
230.46 Spliced and Tapped Conductors. Service-entrance conductors shall be permitted to be spliced or tapped in accordance with 110.14, 300.5(E), 300.13, and 300.15.
Any information you would be able to provide me would be greatly appreciated, if your not able to take the time for this, other contacts with the state or likewise would also be appreciated.
The following code articles state that is permissible but there seems to be some misalignment on this situation.
Purpose of this is that during a generator installation, contractors may splice service entrance cable that used to be feeding load center, and then extend cables to transfer switch instead of calling for a line drop and replacing SE cables completely due to the SE cables not being permitted for splicing.
312.8(A) Splices, Taps, and Feed-Through Conductors. The 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 % 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 % of the cross-sectional area of that space.
(3) The bending space for conductors 4 AWG and larger complies with 314.28(A)(2).
(4) A warning label complying with 110.21(B) is applied to the enclosure that identifies the closest disconnecting means for any feed-through conductors.
230.46 Spliced and Tapped Conductors. Service-entrance conductors shall be permitted to be spliced or tapped in accordance with 110.14, 300.5(E), 300.13, and 300.15.
Any information you would be able to provide me would be greatly appreciated, if your not able to take the time for this, other contacts with the state or likewise would also be appreciated.
