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06-09-2008, 08:53 PM
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#1
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Registered Member
Join Date: Feb 2008
Location: orlando florida
Posts: 947
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no lube wire thhn
i have a question , no lube wire we have pulled on two jobs now , it only comes in thhn per factory . but we are pulling this in pvc conduit underground . i am not going to ask my company about this because ,i need my job but is this not a code issue , should this be thwn or in meaning have a W in the insulation as its in a wet or damp area .on one job the inspector checked the type of insulation ,and said it better be damp or wet underground or its coming out ? but seems no one check the insulation on the last two jobs , let me know if iam wrong ? 
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06-09-2008, 09:08 PM
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#2
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Senior Member
Join Date: Dec 2007
Posts: 1,803
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Every underground run I ever ran was THWN. That said, if it fails, it fails and if it causes problems down the road, then it does. If your paygrade doesn't include engineering questions, I'd let it go.
Last edited by waco; 06-09-2008 at 09:09 PM.
Reason: Add suggestion.
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06-09-2008, 09:32 PM
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#3
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Registered Member
Join Date: Feb 2008
Location: orlando florida
Posts: 947
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thanks waco , no iam not going to open my mouth, just looking for info i ask if i dont know i get real interested in learning ,i saw a video on the web .think it was on u tube these electricians were also showing how good no lube wire is to pull in conduit underground actual live video pulling in a feeder in a pullbox underground , i hope there inspector doesnt surf at u tube . and i think it was on this forum i found it .
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06-09-2008, 10:01 PM
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#4
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Electrical Contractor
Join Date: Feb 2008
Location: Chester, VA./
Posts: 195
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THHN is rated THWN, MTW, gas and oil res II and AWM. The reels I buy anyway.
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06-10-2008, 06:26 AM
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#5
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Senior Member
Join Date: Jan 2007
Location: Baltimore, MD, USA
Posts: 3,490
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__________________
John from Baltimore
"One day at a Time"
All responses based on the '08 NEC
It's not my fault, it's not my problem, I'm not your solution. 
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06-10-2008, 09:02 AM
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#6
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Senior Member
Join Date: Dec 2007
Posts: 1,803
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In my experience, wires are marked THHN/THWN/THW-2 when they are equivalent. I know I've had many guys tell me THHN has the same qualifications as THWN, but if the wire isn't so marked, why would anybody believe it?
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06-10-2008, 12:49 PM
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#7
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Electrical Contractor
Join Date: Feb 2008
Location: Chester, VA./
Posts: 195
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No doubt if it's not marked, it has to be as such to be legal. I was just saying all the reels I buy these days does have the labeling.
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06-10-2008, 02:54 PM
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#8
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Senior Member
Join Date: Jan 2007
Location: Baltimore, MD, USA
Posts: 3,490
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Quote:
Originally Posted by wirenut1110
No doubt if it's not marked, it has to be as such to be legal. I was just saying all the reels I buy these days does have the labeling.
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The SimPull is marked, but the standard marking with all the ratings is fainter than the bold white marking that says "SimPull THHN"
It confused me the first time I used it for an underground pull.
__________________
John from Baltimore
"One day at a Time"
All responses based on the '08 NEC
It's not my fault, it's not my problem, I'm not your solution.
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06-10-2008, 07:50 PM
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#9
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Registered Member
Join Date: Feb 2008
Location: orlando florida
Posts: 947
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thanks for the info ,i will check it again on insulation .ya learn something everyday , i emailed south wire to clear up what they say about simpull thhn on there web page , i may have read it wrong , on the simpull stuff ? it all started when i was reading the tech specs on southwires site , i guess i need new glasses.
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