Where in the code does it require that all egc be tied together at a j box or outlet box?
I can't find it in Articale 250.
Thanks in advance.
You do have to splice all EGCs present in a box together.
250.148.
(Other than IGs)
You do have to splice all EGCs present in a box together.
250.148.
(Other than IGs)
Here is the wording, could you highlight the part that directs you to connect all of them?
250.148 Continuity and Attachment of Equipment Grounding Conductors to Boxes.
Where circuit conductors are spliced within a box, or terminated on equipment within or supported by a box, any equipment grounding conductor(s) associated with those circuit conductors shall be connected within the box or to the box with devices suitable for the use in accordance with 250.148(A) through (E).
Exception: The equipment grounding conductor permitted in 250.146(D) shall not be required to be connected to the other equipment grounding conductors or to the box.
(A) Connections. Connections and splices shall be made in accordance with 110.14(B) except that insulation shall not be required.
(B) Grounding Continuity. The arrangement of grounding connections shall be such that the disconnection or the removal of a receptacle, luminaire, or other device fed from the box does not interfere with or interrupt the grounding continuity.
(C) Metal Boxes. A connection shall be made between the one or more equipment grounding conductors and a metal box by means of a grounding screw that shall be used for no other purpose, equipment listed for grounding, or a listed grounding device.
(D) Nonmetallic Boxes. One or more equipment grounding conductors brought into a nonmetallic outlet box shall be arranged such that a connection can be made to any fitting or device in that box requiring grounding.
(E) Solder. Connections depending solely on solder shall not be used.
Take the two red sections together and there is no way not to connect all the spliced or terminated EGCs together in a metal box.
Take the two red sections together and there is no way not to connect all the spliced or terminated EGCs together in a metal box.
If the EGC is spliced, then yes, it must be connected to the other EGCs that are also spliced in that box.
However, if an EGC and its circuit conductors simply pass through the enclosure it is not required to be connected to any other EGC.
If the EGC is spliced, then yes, it must be connected to the other EGCs that are also spliced in that box.
However, if an EGC and its circuit conductors simply pass through the enclosure it is not required to be connected to any other EGC.
Take the two red sections together and there is no way not to connect all the spliced or terminated EGCs together in a metal box.
Agreed. But lets say the OP has a metal wireway above two panels with multiple conduit entries and nipples into the panels. All conduits meet the requirements of 250.118 yet specs call out a wire EGC also. One circuit has conductors entering the wireway from multiple conduits so a joint is made in the gutter. Those associated EGC's are splices together and pigtailed to the gutter. All other EGC's pass through the wireway unbroken to the ground bars in the panels. Compliant? I believe so.
Agreed. But lets say the OP has a metal wireway above two panels with multiple conduit entries and nipples into the panels. All conduits meet the requirements of 250.118 yet specs call out a wire EGC also. One circuit has conductors entering the wireway from multiple conduits so a joint is made in the gutter. Those associated EGC's are splices together and pigtailed to the gutter. All other EGC's pass through the wireway unbroken to the ground bars in the panels. Compliant? I believe so.
I believe so,,,,,but lets stretch it a bit further.
A switch box in a bathroom has 2 switches fed from 14 guage circuit, and a GFI fed from a 12 guage circuit. By the wording, It would require all grounds to land under a wirenut, and bond the box(if metal)
But what if it's a nonmatellic box, the 14's hit one greenie, and the 12's land under another greenie, and then both go the their prospective devices without ever coming together. Violation?
I believe so,,,,,but lets stretch it a bit further.
A switch box in a bathroom has 2 switches fed from 14 guage circuit, and a GFI fed from a 12 guage circuit. By the wording, It would require all grounds to land under a wirenut, and bond the box(if metal)
But what if it's a nonmatellic box, the 14's hit one greenie, and the 12's land under another greenie, and then both go the their prospective devices without ever coming together. Violation?
What I see missed the most is the connection to the metal box. Most think if it is installed in a metal raceway there is no need to make a connection to the metal enclosure. I believe once you install a wire EGC the metal raceway is just installed as a raceway not the EGC as allowed in 250.118. Thats the way I understand 250.148 (C).