This is something I really hadn't thought about before. Let's say we have multiple branch circuits in conduit that also carries an EGC back to the distribution panel.
Typically a junction box either contains splices on the energized conductors (thus requiring that the box be individually bonded with a pigtail connected to the EGC), or the box is simply a pull-through point (thus not requiring the box to be bonded individually with a pigtail).
But what if you have a box where two or more branch circuits enter together through a common conduit, but simply split off into different downstream conduits without any splices in the energized conductors. The only splice within the box is in the EGC because you must split the EGC into each downstream conduit. It seems to me that since the box contains no splices in the energized conductors, then the box itself does not need to be individually bonded to the EGC because it is no different than a straight pull-through.
The reason for this question is both academic as well as practical. If the box just contains some 10 AWG or smaller conductors, I'd just throw on a pigtail without a second thought. But for large conductors, it makes a difference. For example, it could mean the difference between a 3-port or 4-port Polaris connector for the EGCs.
Typically a junction box either contains splices on the energized conductors (thus requiring that the box be individually bonded with a pigtail connected to the EGC), or the box is simply a pull-through point (thus not requiring the box to be bonded individually with a pigtail).
But what if you have a box where two or more branch circuits enter together through a common conduit, but simply split off into different downstream conduits without any splices in the energized conductors. The only splice within the box is in the EGC because you must split the EGC into each downstream conduit. It seems to me that since the box contains no splices in the energized conductors, then the box itself does not need to be individually bonded to the EGC because it is no different than a straight pull-through.
The reason for this question is both academic as well as practical. If the box just contains some 10 AWG or smaller conductors, I'd just throw on a pigtail without a second thought. But for large conductors, it makes a difference. For example, it could mean the difference between a 3-port or 4-port Polaris connector for the EGCs.