Ask Experts Questions for FREE Help !
Ask
    Eldeneda1's Avatar
    Eldeneda1 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    May 29, 2007, 08:17 AM
    What size wire?
    For a run of #2 electric wire, in conduit, what size neutral and what size ground wires should I use? It's about a 50 foot run.
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
    Uber Member
    		  
    #2

    May 29, 2007, 11:51 AM
    I come up with, #8 for Ground and #4 for neutral.
    ZCCG's Avatar
    ZCCG Posts: 20, Reputation: 2
    New Member
    		  
    #3

    May 30, 2007, 11:36 AM
    Now you got me wondering...
    I agree with the #8 for ground...
    Why would the Neutral be a different size from the Hot leg.
    Is not current equal in all parts of a series circuit?
    Just wondering...
    I generally would use the same size wire for my hot leg as my neutral leg.
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
    Uber Member
    		  
    #4

    May 30, 2007, 12:04 PM
    Reduced neutrals are allowed for electric ranges and dryers, and can be no smaller than 70% of the circuit rating.

    Neutrals for feeders are not related to the wire size of the ungrounded conductors. Reduced neutrals for feeders are allowed ONLY if the maximum unbalanced current is calculated.

    For a 100 amp service with #2 wire, not worth calculating or taking any chance the calcs are done correctly, and use the same size #2 for the neutral.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Wire size etc [ 3 Answers ]

The other day, I read where a supposedly Electrician, could not find the size wire he needed, i.e., # 2 Copper, for, from meter to Fuse panel.. and, this guy told the owner, he could put one or two, of a smaller size, tie them togather to create a larger size wire to carry the heavier load.. the...

Wire size etc. [ 1 Answers ]

Back to Honduras, where the NEC don't apply.. I am installing a 150 amp service.. and it is about 100 ft from breaker panel to meter, and about 50 ft from meter to utility pole connection.. These people commonly use aluminum, and # 2 awg is the largest I can find.. Does anyone think this is...

Wire size [ 2 Answers ]

I am wiring a barn/shop fed by a 100 amp service. Some of the outlets may be over 70 feet from the panel (all will be 20 amp breakers). Should the wire size I pull in for these outlets be 10awg rather than the normal 12awg? My question relates to voltage drop. The shop is about 50'x 70'. Two big...

Wire size [ 3 Answers ]

What size wire should you use for a 125 amp three phase circuit? How do you figure that for future reference?

4 wire home service entrance wire size [ 1 Answers ]

Mobile home requires 4 wire electrical service entrance wire. Distance is 160 foot from meter to breaker panel. 220V service. What size wire do I use? Can I use diff. size for neutral and ground?

View more questions Search