Do you see double/triple tapped neutrals? Or neutral and ground under same screw?
Well, this dead horse gets beaten here from time to time, but let me get in a couple more kicks nonetheless…
It’s a code violation, and like others said, NO panel manufacturer allows two neutrals in one hole.
Those who think otherwise are confusing it with some manufacturers allowing two “hot” conductors per breaker terminal.
Like others said, it is dangerous, and in “real life” creates a problem isolating neutral from a circuit being serviced without losing (or getting an arc flash from) another neutral wrongly terminated under the same lug.
Report, report, report, move on, sleep well at night.
Right from NEC:
408.41 Grounded Conductor Terminations
Each grounded* conductor shall terminate within the panelboard in an individual terminal that is not also used for another conductor.*
To forestall a possible misunderstanding, I am emphasizing “ed” in “grounded”.
This means “Neutral”, as opposed to “groundING”, which is the “regular” green or bare grounding conductor.
That is a mess!
Forget about calling it double tap/lug from now on. Use multi tap/lug instead.
A double tap is when you unload (or get) two rounds to the chest (or head).
Most of the time a minor concern if only 2 same AWG conductors.
Your job is to point this out to your client.
- I think otherwise.
- It’s not dangerous to qualified personnel. NFPA 70E and OSHA rules.
I’m open to learning more.
What is a MINOR electrical problem…
Either it is correct or incorrect…
You can’t continue to give incorrect answers on this forum.
New inspectors will be harmed.
I don’t understand why he doesn’t get…
“Each grounded conductor shall terminate within the panelboard in an individual terminal that is not also used for another conductor.”
I agree it’s not permitted, Mike did say “Most of the time a minor concern if only 2 same AWG conductors” so it does sound like he’s expressing his opinion even if it is not code complaint.
Rob gets it. The OP asked minor or major.
Most of the time it is a code violation however not always. Please read the exception in the article that you are citing. Blank statements about it being a hazard or code violation when it is not true 100% of the time is misleading.
You must understand the “why” behind the rule. If there are two neutrals from two circuits terminating on the same lug or hole in the busbar, there is a risk of removing a conductor from a “live” circuit when removing the one from a powered-down one, which is risky for many reasons.
Two per hole GROUND conductors is allowed because normally there is no current on the ground.
NEUTRAL is supposed to carry the current, so no doubling neutrals.
Read below the NEC reference below. By parallel conductors they mean using two paralleled conductors for the SAME circuit. This, in practice, does not apply to residential, because the smallest conductor you can parallel is 1/0 – too big for a branch circuit or a feeder used in resi.
408.41 Grounded Conductor Terminations. Each grounded
conductor shall terminate within the panelboard in an indi-
vidual terminal that is not also used for another conductor.
Exception: Grounded conductors of circuits with parallel
conductors shall be permitted to terminate in a single ter-
minal if the terminal is identified for connection of more
than one conductor.
It’s not that simple. In Ohio his example is allowed to remain and I’ll bet Ohio is not the exception. Fixing the ‘issue’ varies depending on who you ask.
SD doesn’t allow or disallow anything. Code does. Their lugs are rated for two conductors.
Because the whole article applies.
Do you know what a live permit is?
A qualified individual would turn off both circuits. Now go back to the beginning of the NEC.