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  • Splices in panel

    Does NEC allow splicing of the neutral wires in the electric panel? Thanks

  • #2
    Re: Splices in panel

    I would like to know also, I have seen multiple circuits extended inside a new box on service upgrades.

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    • #3
      Re: Splices in panel

      Yes you can splice in a panel, with some limits. Look at 312.8 of the 2005 NEC.

      "312.8 Enclosures for Switches or Overcurrent Devices."

      steve

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      • #4
        Re: Splices in panel

        I dont have the NEC, Im not an electrician, I was just wondering...But thank you for the answer.

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        • #5
          Re: Splices in panel

          Google "312.8 2005 NEC"

          steve

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          • #6
            Re: Splices in panel

            You certainly CAN splice in a panel with few exceptions.

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            • #7
              Re: Splices in panel

              i've had two different experiences with two different local inspectors. I put two wires into a 15 amp breaker, it was designed to take two, and the inspector told me to splice the two and run one wire to the breaker. A couple of weeks later, three blocks down the street in the same community on the same Square D box, I spliced two wires and ran one to the breaker and a different inspector pointed out the the breaker was designed to take two wires so I should take the splice out. I didn't argue either time. Life is interesting sometimes.

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              • #8
                Re: Splices in panel

                The limitation would be box fill percentage. You cant just splice as many times as you want.

                Disconnects are not to be used as splice points.

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                • #9
                  Re: Splices in panel

                  Originally posted by M.Kinnes View Post
                  Disconnects are not to be used as splice points.
                  Do you have a code reference for that? It would seem that the metal box containing a disconnect is similar to a metal box containing a panelboard and some breakers.

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                  • #10
                    Re: Splices in panel

                    "Does NEC allow splicing of the neutral wires in the electric panel?"

                    You can certainly extend neutral wires with a splice.

                    It might be poor practice to join 2 neutrals and a pigtail for the purpose of avoiding placing 2 neutrals under a single screw.

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                    • #11
                      Re: Splices in panel

                      Originally posted by jdsmith View Post
                      Do you have a code reference for that? It would seem that the metal box containing a disconnect is similar to a metal box containing a panelboard and some breakers.
                      See 430.10
                      Skyline Electric
                      Los Angeles
                      www.SkylineElectricService.com

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                      • #12
                        Re: Splices in panel

                        Originally posted by George Roberts View Post
                        "Does NEC allow splicing of the neutral wires in the electric panel?"

                        You can certainly extend neutral wires with a splice.

                        It might be poor practice to join 2 neutrals and a pigtail for the purpose of avoiding placing 2 neutrals under a single screw.
                        Correct! It could lead to overloading the pigtailed wire.
                        Skyline Electric
                        Los Angeles
                        www.SkylineElectricService.com

                        Comment


                        • #13
                          Re: Splices in panel

                          Originally posted by Skyline Electric View Post
                          See 430.10
                          The question was about panels not motor control centers
                          Seeking to be the best and the safest in the electrical trade.

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                          • #14
                            Re: Splices in panel

                            Originally posted by Skyline Electric View Post
                            Correct! It could lead to overloading the pigtailed wire.
                            What if it was two 14 to one 10
                            Seeking to be the best and the safest in the electrical trade.

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                            • #15
                              Re: Splices in panel

                              "What if it was two 14 to one 10"

                              Actually, I was worried about the neutrals being on opposite legs, the pigtail coming lose, and the two circuits losing the neutral connection.

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