Neutral

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steelersman said:
how about some 14-3? Or are you one of those commercial guys that thinks that #12 is the only way to go. :)
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When you run 12-3 your good for almost anything. What if you need 20 amps for that unknown. For same reason i want the extra circuit i also want it to be ready for 20. And yes since turning commercial i simply just prefer 12 over 14.
 
LarryFine said:
I bet you've never asked the POCO to supply you with two 120v services. :grin:
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In most cases they do... they just share the same neutral, and also most often have the other hot opposite it allow you to get 240.... :rolleyes:

Seriously, I do not know where this fear of shared neutral circuits comes from when every service that has a neutral in the first place - is shared?????
 
e57 said:
In most cases they do... they just share the same neutral, and also most often have the other hot opposite it allow you to get 240.... :rolleyes:
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Of course. See below.

Seriously, I do not know where this fear of shared neutral circuits comes from when every service that has a neutral in the first place - is shared?????
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That was my point exactly.
 
e57 said:
In most cases they do... they just share the same neutral, and also most often have the other hot opposite it allow you to get 240.... :rolleyes:

Seriously, I do not know where this fear of shared neutral circuits comes from when every service that has a neutral in the first place - is shared?????
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Yes poco shares neutral and not much we can do about that. But we have the choice to not let it go past our MDP. I have seen more than my share of the damage from the poco losing theres. Electronics today will fry and we are talking major money. A split second loss is enough to plenty. Other than time and material is there a good reason to do it ?
 
Jim W in Tampa said:
Yes poco shares neutral and not much we can do about that. But we have the choice to not let it go past our MDP. I have seen more than my share of the damage from the poco losing theres. Electronics today will fry and we are talking major money. A split second loss is enough to plenty. Other than time and material is there a good reason to do it ?
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Well there is less voltage drop on the neutral wire due to its only carying unbalanced current.
 
Twoskinsoneman said:
Well there is less voltage drop on the neutral wire due to its only carying unbalanced current.
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Yes that's true but if voltage drop is the problem in a house then the home run must be a mighty long one. And that should be handled same as we do in commercial by upsizing wire.
I am not saying i would not do it a track home . There we all know we either are low bid or no job. Simply saying if wiring my own i don't want any shared neutrals but then i would not want romex either.
 
Jim W in Tampa said:
Yes that's true but if voltage drop is the problem in a house then the home run must be a mighty long one. And that should be handled same as we do in commercial by upsizing wire.
I am not saying i would not do it a track home . There we all know we either are low bid or no job. Simply saying if wiring my own i don't want any shared neutrals but then i would not want romex either.
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yes that evil and scary romex should be outlawed. Nobody in their right mind should use that stuff.
 
Jim W in Tampa said:
Yes that's true but if voltage drop is the problem in a house then the home run must be a mighty long one. And that should be handled same as we do in commercial by upsizing wire.
I am not saying i would not do it a track home . There we all know we either are low bid or no job. Simply saying if wiring my own i don't want any shared neutrals but then i would not want romex either.
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Ya know at my work my boss does not allow MWBC due to his lack of confidence in the techs. How ever I thing it's a great technology and do on my own jobs.

You know I bet there is no problem ever caused by MWBCs that can't be explained by either a code violation or installer incompetence.
 
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