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Still humming a hawing regarding utilization of a main-connected subpanel with multiple dedicated lines extending to outlets vs a single line from the main with 'pigtailed' outlets. Seem to be a pretty even split with some heavyweight opinions from both camps.
If I decided on a single line, for a 70 ft run from the main, I suspect at least 8 ga (6 ga?)wire should be used. If that is the case, is it practical (or possible) to direct that 8 ga on to the outlets? If not, what is the best method of stepping down to a smaller (say, 10 ga) size line?
A qualified electrician will be doing the work, and in fact once he began hearing of the idea of dedicated lines, asked me about this very issue. I just want to have a better grasp on what is best for my situation.
thanks
Follow Ups:
Electrically 12-14 AWG is fine, Sound wise I'd go with 10 AWG which is equivalent to 2.5sq. mm European. why? IMO lower AWG is more powerful\punchy but clogged, higher-open yet slim sounding.
Edits: 02/04/10
70' is nothing. Run number 10awg romex and forget about it. Not even sure the screws on P&S outlets I used are good for #10 but that's what I did. I know by code and mfr rating, you cannot terminate #8 or larger wire on a 15 or 20 amp receptacle. Then you get into joints and splices and what not and defeat the whole purpose of the dedicated run. Unless you are running some humongus mono block power amps, you will not need more than a 20amp breaker and #10 wire for your whole system.
"E pur si muove...And yet it moves"
The likely reason your electrician asked you about running 8ga wire to the outlets is that he's probably figuring out how much extra he's going to charge you for the PITA trouble associated with working with wire that big and stiff. 10ga is a ROYAL PITA to work with inside of junction boxes. I cannot imagine how difficult 8ga would be. You might also want to check your chosen outlets to see if they'll even handle 8ga. IMO, 8ga to the outlets is plain crazy. Go with 12 or 10.
ok i mis read-70 feet is along run --10 gauge or 8 gauge-- TO A SUBPANEL-not a good idea to do it any other way-
if i am reading correctly--you are going to have a sub panel- 10 gauge wire to the sub panel should be fine-8 would be fine also---in the subpanel are a panel to main breaker switch-then there will be 4 or 8 or more breaker switches -from these will go the wire to your receptacles and/or lights -this is something your electrician will decide-one factor being your needs and the other factor what size service you have--for this i would use 12 gauge-as for receptacle's use at least hospital grade-they have a better grounding bar and the tension inside is much stronger-then of course there is oyaide,teslaplex-hubbell etc--by the way the hospital grade most likely would be a hubbell-
Having an expert question your idea doesn't raise a flag that your plan is flawed? Your getting nuts with the wire size.
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