Everybody knows...

[Fred B]

Just throwing this out there .. wonder why at the Main neutral bar where all the grounds and neutrals can land, why is it grounds can be doubled or tripled up but not neutrals, all are within the same bus bar potential, granted some are carrying current and some aren't. I always use a separate landing hole for my neutrals as taught, maybe the reason is its done that way is for better isolation of the specific circuits neutral for easy access, cant imagine its for heat related issues ..

1. code compliance (408.41). 2 mfg listing, bus might be listed that only 1 wire termination per opening be made, but if multiple is allowed, it vdoes not supercede #1.

 

[GoldDigger]

Just throwing this out there .. wonder why at the Main neutral bar where all the grounds and neutrals can land, why is it grounds can be doubled or tripled up but not neutrals, all are within the same bus bar potential, granted some are carrying current and some aren't. I always use a separate landing hole for my neutrals as taught, maybe the reason is its done that way is for better isolation of the specific circuits neutral for easy access, cant imagine its for heat related issues ..

The difference is simple. Under normal conditions the EGCs do not carry current. The neutrals do.
If you want to remove the EGC for circuit A and it is doubled with the EGC of circuit B, no harm will be done during the temporary disconnection.
If you want to remove the neutral for circuit A and it is doubled with the neutral for circuit B, you must de-energize both circuits, especially if B is an MWBC.
The safety issues and potential damage from disconnecting the neutral of an energized circuit are substantial.
Unless there is an active ground fault at the time, temporarily disconnecting the EGC of an energized circuit is relatively safe.