that's right and that's what i hadOne of the few things i remember from electrical school is that 4-90's is the max in a single run. (360 degrees total for all bends)
that's right and that's what i hadOne of the few things i remember from electrical school is that 4-90's is the max in a single run. (360 degrees total for all bends)
when i said that it sounded like rustyshakleford was going to bury the Lbs. if you can get away with the 45 degree instead of a 90 do it. and by the way out of 6 houses on the street he was the only copper service and no issue's 3 other houses aluminum services blew upFrank,
You start by saying leave those 90. Then your burning up a truck pulling thru your 90. So funny.
Hey, as a work buddy says (fellow engineer), "anything worth doing is worth over-doing".ti think your starting to over engineer the simple job of a circuit thru a pipe.
That’s a surprise. Every home I’ve ever owned, including my current house, has aluminum mains. I suspect it’s all they use around here. Unlike the aluminum wiring they tried using in houses in the late 1960’s (much of which failed or caused fires), I’ve never heard of anyone having any problem with aluminum mains, assuming they’re buttered and tightened properly into approved lugs.he was the only copper service and no issue's 3 other houses aluminum services blew up
Assuming you don't count the LB bodies at each end, and do count where the risers to the LB bodies go into the ground, I'll have three 90s and a 45.
Thanks guys. I think we've beaten this problem into submission. For the record, I decided to return the UF-B and go with 8awg XHHW, in 1-1/2" conduit in case I want to add stuff later.As long as you can access the openings in the LB's, they would count as the beginning and end of the run, yours looks good.
Thanks guys. I think we've beaten this problem into submission. For the record, I decided to return the UF-B and go with 8awg XHHW, in 1-1/2" conduit in case I want to add stuff later.
One last question: This joker at stackexchange insists you can't splice in the LB body. Which I want to connect NM from my main load center to the XHHW, at the LB body at the beginning of the run on the side of my crawlspace. When I point out he's wrong, he grudgingly admits, but still insists you'd be a moron to do this (instead of adding a separate junction box, which you need somehow to protect the XHHW going from theLB to this junction box, as I don't think you're allowed to have unprotected XHHW or THHN even in a crawlspace). I think his arguments are silly. What do you guys think:
https://diy.stackexchange.com/questions/123384/pulling-wire-through-emt-and-pvc-conduit
See comments after the "answer".
My LBs are durably and legibly marked at 32 cu-in. So they can have my 2*3+1 of 8awg wire count, with 11 cu-in left over."Conduit bodies shall not contain splices, taps, or devices unless they are durably and legibly marked by the manufacturer with the cubic inch capacity. The maximum number of conductors shall be computed using the same procedure for similar conductors in other than standard boxes"
My LBs are durably and legibly marked at 32 cu-in. So they can have my 2*3+1 of 8awg wire count, with 11 cu-in left over.
I'm curious of people think the objections given to doing this by that Harper guy have any merit, or if he's just trying to argue away the fact that I found a mistake in his "answer".
He’s wrong to have said it’s not permitted by code, but he is right that there are better ways to do it. I also prefer mounting a larger box indoors for the splice, rather than doing in the LB. I actually prefer to put a service loop in the LB, in case I ever need an extra few inches of wire after doing some repair or expansion on that line.I'm curious of people think the objections given to doing this by that Harper guy have any merit, or if he's just trying to argue away the fact that I found a mistake in his "answer".
My LBs are durably and legibly marked at 32 cu-in. So they can have my 2*3+1 of 8awg wire count, with 11 cu-in left over.
I'm curious of people think the objections given to doing this by that Harper guy have any merit, or if he's just trying to argue away the fact that I found a mistake in his "answer".
He’s wrong to have said it’s not permitted by code, but he is right that there are better ways to do it. I also prefer mounting a larger box indoors for the splice, rather than doing in the LB. I actually prefer to put a service loop in the LB, in case I ever need an extra few inches of wire after doing some repair or expansion on that line.
That’s a surprise. Every home I’ve ever owned, including my current house, has aluminum mains. I suspect it’s all they use around here. Unlike the aluminum wiring they tried using in houses in the late 1960’s (much of which failed or caused fires), I’ve never heard of anyone having any problem with aluminum mains, assuming they’re buttered and tightened properly into approved lugs.
From HomeDepot, I'll check later. What have'n't you seen, the cu-in marking ?for my own curiosity what brand Lb are you using? can you take a pic of it? I've never seen this.
So how do you get from the LB to the other box ? You can't just have XHHW or THHN running loose from the LB to the box, even in a crawlspace, can you ?He’s wrong to have said it’s not permitted by code, but he is right that there are better ways to do it. I also prefer mounting a larger box indoors for the splice, rather than doing in the LB.
That’s a surprise. Every home I’ve ever owned, including my current house, has aluminum mains. I suspect it’s all they use around here. Unlike the aluminum wiring they tried using in houses in the late 1960’s (much of which failed or caused fires), I’ve never heard of anyone having any problem with aluminum mains, assuming they’re buttered and tightened properly into approved lugs.
i use aluminum on all my services, now. also but this service like the others is underground. this was twenty years ago and up until then the utility would not hook up underground aluminum they just started doing it at that time i just didn't believe it would work well at that time and the home owner was glad that it was copper
you are also telling me that if you are running a 100 amp sub panel that you would loop #3 copper in that Lb????????????
My sister just had a buried aluminum main fail. 1982 install date. Power company said they are seeing many of these happen locally.That’s a surprise. Every home I’ve ever owned, including my current house, has aluminum mains. I suspect it’s all they use around here. Unlike the aluminum wiring they tried using in houses in the late 1960’s (much of which failed or caused fires), I’ve never heard of anyone having any problem with aluminum mains, assuming they’re buttered and tightened properly into approved lugs.
My sister just had a buried aluminum main fail. 1982 install date. Power company said they are seeing many of these happen locally.
No, not cheap... but it's easy to pull thru.at one point the power company would spec out that 3 inch pipe for what ever size service
so the telephone company with cable was saying the same. i had a problem not with the service but with the requirement of a 3 inch pipe for a RG6 quad shield in a 3 inch pipe. oversize is one thing stupidity is another. 3 inch pvc pipe is not cheap.
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