milwaukeesteve
Senior Member
- Location
- Milwaukee, WI
Thank you George for those replies. I was wondering when you would weigh in on this one.
I agree with everything you said in your second reply. Everything. I will now expand on the fantastic points you made in that reply.
If we look at the original rule again, 210.4(C), we see, as you stated, that the MWBC SHALL supply ONLY line-to-neutral loads. There, we have covered line-to-neutral. Especially when it uses the words SHALL and ONLY; those are very strong words. (Kind of like the word ALL when dealing with SA recepts on a kitchen countertop, but that is another humdinger of a topic).
Now the exceptions would be exceptions to using ONLY line-to-neutral loads. (I use the word ONLY there because I am following the rule's use of ONLY.) Therefore, the exceptions would be for NON, and I repeat, NON line-to-neutral loads. Again, if the original rule wasn't so emphatic with the SHALL and ONLY, maybe I would consider including line-to-neutral loads within the exceptions, but somehow I can't.
I said I agreed with everything you said in that reply and I did. You even helped me point out my arguement even better. Near the end of your reply though, you showed how you thought that Mike came up with the 'group of loads' concept. Again, I agree with that, but 'group' does not mean 'dual voltage' or 'combined' loads; it just means more than one.
As for the Range/Dryer arguement: first those 120V loads (including the convenience outlets on old ranges) are internally fused. And they are UL listed and approved for that. These are also manufactured items, and not field installed, 'combined load' MWBC's.
I agree with everything you said in your second reply. Everything. I will now expand on the fantastic points you made in that reply.
If we look at the original rule again, 210.4(C), we see, as you stated, that the MWBC SHALL supply ONLY line-to-neutral loads. There, we have covered line-to-neutral. Especially when it uses the words SHALL and ONLY; those are very strong words. (Kind of like the word ALL when dealing with SA recepts on a kitchen countertop, but that is another humdinger of a topic).
Now the exceptions would be exceptions to using ONLY line-to-neutral loads. (I use the word ONLY there because I am following the rule's use of ONLY.) Therefore, the exceptions would be for NON, and I repeat, NON line-to-neutral loads. Again, if the original rule wasn't so emphatic with the SHALL and ONLY, maybe I would consider including line-to-neutral loads within the exceptions, but somehow I can't.
I said I agreed with everything you said in that reply and I did. You even helped me point out my arguement even better. Near the end of your reply though, you showed how you thought that Mike came up with the 'group of loads' concept. Again, I agree with that, but 'group' does not mean 'dual voltage' or 'combined' loads; it just means more than one.
As for the Range/Dryer arguement: first those 120V loads (including the convenience outlets on old ranges) are internally fused. And they are UL listed and approved for that. These are also manufactured items, and not field installed, 'combined load' MWBC's.