rochaconstruct
Member
Does the flexible conduit connecting the motor at the end of a conduit run need to be included in the total degrees of bends in the run. Is there a code referance for this?
Conduit bends
- Thread starter rochaconstruct
- Start date
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brother
Senior Member
you try NEC 2008 348.26?
stew
Senior Member
- Location
- federal way,washington
flex is not part of the conduit run imho
- Location
- Massachusetts
Flex is a conduit.
You can not have more than 360 degrees between pull points.
You can not have more than 360 degrees between pull points.
So what does the C stand for in things like FMC, LFMC, LFNC and FNMC?
Volta
Senior Member
- Location
- Columbus, Ohio
That is true.
However, one might interpret 300.18 to allow the flex to be not connected at the load end for utilization equipment "where required". The flex then may be considered to be straight, during the installation of conductors, if no obstructions exist.
- Location
- Massachusetts
As I read the 360 requirement I see it as applying at all times, once you connect the far end of the flex you still have to be under 360.
brother
Senior Member
I agree, one still has to be under 360 degrees. If we followed the other peoples logic, the when you do a run of rigid steel conduit and reach 360, you can connect emt to it without a box/elbow, in between and run another 360!! Thats insane.
Volta
Senior Member
- Location
- Columbus, Ohio
Maybe. But in section 348.26 the phrase is "between pull points". If the physical installation constraints require the installation of conductors before the final connection to the utilization equipment, is the load end of the flex not one of the "pull points", even while not connected to the equipment?
If not, where is the load-end pull point?
- Location
- Massachusetts
Sure, but once it is connected the requirement is still 360 before or after the conductors are in place.
IMO You cannot have more than 360 degrees between pull points even if you no longer have to 'pull'.
And I see it like Gus, install a C and move on.
Volta
Senior Member
- Location
- Columbus, Ohio
Sure, me too, as long as it is smaller than AWG 4, anyway.
But it says what it says, and it doesn't say "360 before or after the conductors are in place". It says "between pull points". If the pull cannot be performed with the raceway connected, say to a motor termination enclosure
, then the last bend likely does not exist when pulling.And of course, I don't interpret it this way on my own jobs
, I have my electricians count bends all the way to the ko, unless through an angle connector, as implied by 348.42.What section are you using for this?
- Location
- Massachusetts
Exactly what it says, and once you move the pull point by installing the flex you are violating what it says.
When you are done and look at the raceway between the pull points as they exist at that moment they must be under 360 degrees apart.
stew
Senior Member
- Location
- federal way,washington
I see your point I wire . never have considered this to be in violation but technically it is apparently. I stand humbly corrected
jmargolis79
Member
- Location
- minneapolis
why is it called a "C"? Shouldn't it be a "S" for straight?
brother
Senior Member
its called a 'C' because you see how easier it is to pull.
or cause you tell the inspector: "I know it has 6 90s but 'C' that"
stew
Senior Member
- Location
- federal way,washington
just for drill i never pull wire thru a flex. only up to the last fitting of the conduit and then slide the flex over the wire. never score the wire that way. am I forgiven?
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
Why not? One can argue that disconnecting the flex from the connector produces a pull point.
What sayeth you, Bob?
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