non-metallic flex conduit max. length
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Re: non-metallic flex conduit max. length
Check Article 356 Liquidtight Flexible Nonmetallic Conduit: Type LFNC.
(Also known as LNMC)
Lengths over 6 feet are allowed of type LFNC-B only if supported every 3 feet and within 1 foot of boxes. Make sure you buy type "B", not "A" or "C".
Earl
Check Article 356 Liquidtight Flexible Nonmetallic Conduit: Type LFNC.
(Also known as LNMC)
Lengths over 6 feet are allowed of type LFNC-B only if supported every 3 feet and within 1 foot of boxes. Make sure you buy type "B", not "A" or "C".
Earl
Re: non-metallic flex conduit max. length
Why would you want to run flex for 75 feet? There is no way that the run will look good. You can put all the supports in you want and it will still sag and dip. As I read through these posts I am beginning to wonder if anyone still runs conduit? Are we really becoming a trade that doesn't have any skills left? You say this is a 480 volt motor so I am guessing that this is in an industrial or commercial application, it would seem prudent on your part to run the conduit if for nothing else to insure the adequate protection of the conductors feeding this motor. I know code allows the use of all the different kinds of flexible cable in many differant applications, but I often wonder if we quit running conduit are we just ropers? Are our buildings going to become glorified romex houses?
I read through the posts and wonder if everybody is just wanting to get the job done and do it as cheap and fast as they can to collect a pay check on Friday and not worry about the next guy or the the?cost of adding additional circuits at a later date.
Sorry to sound like this but it seems as if no one wants to take the time and effort to make a job look good any more.
Why would you want to run flex for 75 feet? There is no way that the run will look good. You can put all the supports in you want and it will still sag and dip. As I read through these posts I am beginning to wonder if anyone still runs conduit? Are we really becoming a trade that doesn't have any skills left? You say this is a 480 volt motor so I am guessing that this is in an industrial or commercial application, it would seem prudent on your part to run the conduit if for nothing else to insure the adequate protection of the conductors feeding this motor. I know code allows the use of all the different kinds of flexible cable in many differant applications, but I often wonder if we quit running conduit are we just ropers? Are our buildings going to become glorified romex houses?
I read through the posts and wonder if everybody is just wanting to get the job done and do it as cheap and fast as they can to collect a pay check on Friday and not worry about the next guy or the the?cost of adding additional circuits at a later date.
Sorry to sound like this but it seems as if no one wants to take the time and effort to make a job look good any more.
wayne123
Senior Member
- Location
- North Carolina
Re: non-metallic flex conduit max. length
Amen, caj1962!! We really need comments like this on this site!!
Amen, caj1962!! We really need comments like this on this site!!
Re: non-metallic flex conduit max. length
caj1962 and wayne123:
You guys are jumping the gun. Don't assume that this guy is being lazy or doesn't want the job to look good. Don't overlook the potential reasons for him installing the flex for 75 feet.
atalo is a maintenance technician in what I would assume would be industrial??? When I worked for an engineering firm, there were many times we would receive specs. requiring the use of metallic and non-metallic conduit. This was tipically for the automotive industry because of their frequent modifications and short-short install time frames usually during holidays. Now, this very well may not be the case with atalo, but my point to you guys is that you should not jump the gun and maybe try and answer his questions before attempting to badger him.
Most of everyone on this forum, especially myself, is here to learn more than to teach. My intentions are not to offend you guys so please excuse me if you take it in that manor.
This is atalo's first post. I would hate for it to be his last. lol...
caj1962 and wayne123:
You guys are jumping the gun. Don't assume that this guy is being lazy or doesn't want the job to look good. Don't overlook the potential reasons for him installing the flex for 75 feet.
atalo is a maintenance technician in what I would assume would be industrial??? When I worked for an engineering firm, there were many times we would receive specs. requiring the use of metallic and non-metallic conduit. This was tipically for the automotive industry because of their frequent modifications and short-short install time frames usually during holidays. Now, this very well may not be the case with atalo, but my point to you guys is that you should not jump the gun and maybe try and answer his questions before attempting to badger him.
Most of everyone on this forum, especially myself, is here to learn more than to teach. My intentions are not to offend you guys so please excuse me if you take it in that manor.
This is atalo's first post. I would hate for it to be his last. lol...
Re: non-metallic flex conduit max. length
Another reason for the "cable" installations is "Value Engineering". The owner wants ways to save money and more and more the MC, AC installation is questioned, offered, and sometimes accepted. Many people will happily scrimp on wiring (and other hidden parts of a building) in order to keep the grossly overpriced interior decorations. :roll:
Roger
Another reason for the "cable" installations is "Value Engineering". The owner wants ways to save money and more and more the MC, AC installation is questioned, offered, and sometimes accepted. Many people will happily scrimp on wiring (and other hidden parts of a building) in order to keep the grossly overpriced interior decorations. :roll:
Roger
Re: non-metallic flex conduit max. length
Roger, while I do understand value engineering, I also hate it with a passion. The install price looks very good and the bottom dollar always wins out. But is it really the best price? 15 minutes after the check is signed and someone wants an additional outlet or light fixture, it ends up costing the customer a ton of money. While the suits and ties that count the beans and pat themselves on the back "saving money" have no clue of the added cost of maintenance and renovations. I have never been on a job where it all went as designed or speced. There are always adders and change orders. What I see are the ropers that want to nothing but mc cable work get the job for a little of nothing and then slam dunk the change orders so that the final price far exceeds the cost of those of us that want to do the job right from the start.
My point is to slam those that utilize MC cable or other flexible raceways, but to state that those things have a place. Short runs rework where flexibility is needed, but not the whole building. You can take a guy off the street and in fifteen minutes have him running MC cable like a pro. He will have no clue as to what or why he is running it and may not even know the proper way to terminate it at the ends. At the end of the day his new job title is electrician and that is what upsets me. Those of us that have paid our dues learning skills that take years to perfect. The skills that are not taught in many places anymore. The skills that "neat and workmanlike manner mean something. Not how many feet of MC cable can you throw the bar joists in a days time.
If I sound a little disgruntled about flexible cable and the like I appologize, but the more I read this forum it is becoming very evident to me that I must be a dinosaur and should get ready for my rocking chair. I talk to a lot of contractors and see a lot of work that is happening in my area go in and it is very evident that the skill of the tradesman is falling off in a hurry. I was recently on a jobsite where 2 different electrical contractors were working and not one other employees had a tape measure or a level in their pouch. When I was a pup coming into the trade we would been run off the job without those tools. It was very evident where they were running pipe that most of them had no clue as to how to make the ends feet together.
Roger, while I do understand value engineering, I also hate it with a passion. The install price looks very good and the bottom dollar always wins out. But is it really the best price? 15 minutes after the check is signed and someone wants an additional outlet or light fixture, it ends up costing the customer a ton of money. While the suits and ties that count the beans and pat themselves on the back "saving money" have no clue of the added cost of maintenance and renovations. I have never been on a job where it all went as designed or speced. There are always adders and change orders. What I see are the ropers that want to nothing but mc cable work get the job for a little of nothing and then slam dunk the change orders so that the final price far exceeds the cost of those of us that want to do the job right from the start.
My point is to slam those that utilize MC cable or other flexible raceways, but to state that those things have a place. Short runs rework where flexibility is needed, but not the whole building. You can take a guy off the street and in fifteen minutes have him running MC cable like a pro. He will have no clue as to what or why he is running it and may not even know the proper way to terminate it at the ends. At the end of the day his new job title is electrician and that is what upsets me. Those of us that have paid our dues learning skills that take years to perfect. The skills that are not taught in many places anymore. The skills that "neat and workmanlike manner mean something. Not how many feet of MC cable can you throw the bar joists in a days time.
If I sound a little disgruntled about flexible cable and the like I appologize, but the more I read this forum it is becoming very evident to me that I must be a dinosaur and should get ready for my rocking chair. I talk to a lot of contractors and see a lot of work that is happening in my area go in and it is very evident that the skill of the tradesman is falling off in a hurry. I was recently on a jobsite where 2 different electrical contractors were working and not one other employees had a tape measure or a level in their pouch. When I was a pup coming into the trade we would been run off the job without those tools. It was very evident where they were running pipe that most of them had no clue as to how to make the ends feet together.
Re: non-metallic flex conduit max. length
I failed to mention in my above post that I agree 101% with neat/clean work. I cannot even consider leaving a job, my job, without it looking just right. I have only been in this field for 12+ years, but I have seen how the industry has become corner-cutting and it infuriates me.
In contrast, the only reason I joined in on this thread is because atalo was not given the benifit of the doubt...that's all.
I failed to mention in my above post that I agree 101% with neat/clean work. I cannot even consider leaving a job, my job, without it looking just right. I have only been in this field for 12+ years, but I have seen how the industry has become corner-cutting and it infuriates me.
In contrast, the only reason I joined in on this thread is because atalo was not given the benifit of the doubt...that's all.
Re: non-metallic flex conduit max. length
Troy, you make a good point. Atalo I hope you don't think anything was directed at you.
As Troy said earlier don't let this be your last post. You will find topics drift in and out and thread jacks occure but we are all here to learn.
Roger
Troy, you make a good point. Atalo I hope you don't think anything was directed at you.
As Troy said earlier don't let this be your last post. You will find topics drift in and out and thread jacks occure but we are all here to learn.
Roger
Re: non-metallic flex conduit max. length
I would also like to make the statement that Troy and Roger have made. My statements were not direct at anyone or anything but Roger I did read your post and I also believe we speak from the same side of the fence. You all have a great weekend.
I would also like to make the statement that Troy and Roger have made. My statements were not direct at anyone or anything but
Roger I did read your post and I also believe we speak from the same side of the fence. You all have a great weekend. Re: non-metallic flex conduit max. length
I want to thank everyone for the valuable feedback. I sort of suspected that what I was told to do was a little out of line, so the question was as much for my supervisor's benefit as for mine. I am not an electrician by trade, but electrical is part of my job. After looking in the NEC2002, I found Article 348.20A(2), 410.67(c), 356.30(1), and 430.101A.
The comments about the quality of workmanship were much appreciated.
And I will be back...
I want to thank everyone for the valuable feedback. I sort of suspected that what I was told to do was a little out of line, so the question was as much for my supervisor's benefit as for mine. I am not an electrician by trade, but electrical is part of my job. After looking in the NEC2002, I found Article 348.20A(2), 410.67(c), 356.30(1), and 430.101A.
The comments about the quality of workmanship were much appreciated.
And I will be back...
pierre
Senior Member
- Location
- Westchester County, New York
Re: non-metallic flex conduit max. length
If you were to open my copies of the code, 110.12 is crossed out and I printed in bold print 'PRIDE'.
Yes the general quality of the trade is declining, the almighty dollar rules. But...
I am a little older these days , and I believe a little wiser :roll: .
When I was younger I would shoot off at the mouth saying what terrible work, how could someone not know better?
Now I like to ask more questions before I either sound off or try to help someone who really has good intentions, but may not have had the good fortune to have learned from a pro.
In a case such as this there can be physical limitations or financial implications that may make sense for the flex installation and we should explore the reasons.
Poor workmanship is never to be allowed, but give a guy a chance and you may mold another gem such as yourself.
Pierre
If you were to open my copies of the code, 110.12 is crossed out and I printed in bold print 'PRIDE'.
Yes the general quality of the trade is declining, the almighty dollar rules. But...
I am a little older these days
, and I believe a little wiser :roll: .When I was younger I would shoot off at the mouth saying what terrible work, how could someone not know better?
Now I like to ask more questions before I either sound off or try to help someone who really has good intentions, but may not have had the good fortune to have learned from a pro.
In a case such as this there can be physical limitations or financial implications that may make sense for the flex installation and we should explore the reasons.
Poor workmanship is never to be allowed, but give a guy a chance and you may mold another gem such as yourself.
Pierre
Re: non-metallic flex conduit max. length
Hi Guys,
This is my first post, so go easy on me.. LOL..
I really like this Forum, there seems to be a lot of "Ole' Pros" here and I like what is being said about quality and never allowing "Sloppy Workmanship...
The only way that "WE" can avoid the "Bean Counter" interruptions, is to try to set the standard and don't deviate from it... LOL... I know some of you are thinking "This Guy must be a Novice"... I'm not, and I really do avoid the "Bid" syndrome, by promoting quality... Yes I loose a lot of so called bids, but I don't bid for free either... I will do a site Survey for a price, and then apply the fee to the job if I get the contract... I loose 80% of the so called "Bid" jobs, because I won't work for free, but the 20% that I do get, keep us healthy...
Thanx to all of you, including the folks who ask questions... I will be back, because I sense Quality on this Forum...
Hi Guys,
This is my first post, so go easy on me.. LOL..
I really like this Forum, there seems to be a lot of "Ole' Pros" here and I like what is being said about quality and never allowing "Sloppy Workmanship...
The only way that "WE" can avoid the "Bean Counter" interruptions, is to try to set the standard and don't deviate from it... LOL... I know some of you are thinking "This Guy must be a Novice"... I'm not, and I really do avoid the "Bid" syndrome, by promoting quality... Yes I loose a lot of so called bids, but I don't bid for free either... I will do a site Survey for a price, and then apply the fee to the job if I get the contract... I loose 80% of the so called "Bid" jobs, because I won't work for free, but the 20% that I do get, keep us healthy...
Thanx to all of you, including the folks who ask questions... I will be back, because I sense Quality on this Forum...
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