Jim W in Tampa
Senior Member
- Location
- Tampa Florida
If you had 30 inches between two light fixtures would you be required to strap it if there is nothing to strap it to ?Does a connecter count as being within the 3 foot rule ?
Not saying your wrong but is a steel box not a support ?Gmack said:I would have to disagree with this whole idea as being NEC compliant.
A connector is not a "support". NEC requires "fastened" as a support.
Gmack said:I would have to disagree with this whole idea as being NEC compliant.
A connector is not a "support". NEC requires "fastened" as a support.
Warehouse i am doing has 8 foot flor strips mounted to perlins.Spacing between a few leaves me with about 30 inches and no perlin or anything to fasten to.They are 20 feet up and unlikely to ever be in harms way.Inspector will be out monday for wall inspection and i will ask him if he has an issue with this.Just seems that this is a very strong section with a connector on each end.All the others had a perlin in the middle to strap tnly other choice would look ugly and stupid but i could put back to back 90's and go into fixtures from side.Looks are a big issue on this job.Will take picture monday if i remember my camGmack said:Gentlemen, Im only saying that the "CODE" does not define a connector equal to/as or a support. "Securely fastened in place" is another "code" issue.
Maybe give some application where this makes more sense. Why 30 inches between fixtures/luminaries, back to back bends?
Why do that ?
Jim W in Tampa said:This does bring up the question of lets say 2 inches of emt connecting 2 boxes.According to nec a strap is still needed ?
From a practical or common sense viewpoint I agree with you, however the code requires this nipple to be securly fastened.I say no way.
Don(A) Securely Fastened EMT shall be securely fastened in place at least every 3 m (10 ft). In addition, each EMT run between termination points shall be securely fastened within 900 mm (3 ft) of each outlet box, junction box, device box, cabinet, conduit body, or other tubing termination.
don_resqcapt19 said:Trevor,
I say no way.From a practical or common sense viewpoint I agree with you, however the code requires this nipple to be securly fastened.
Don(A) Securely Fastened EMT shall be securely fastened in place at least every 3 m (10 ft). In addition, each EMT run between termination points shall be securely fastened within 900 mm (3 ft) of each outlet box, junction box, device box, cabinet, conduit body, or other tubing termination.
It is, by the connectors. Certainly if we can have 6' of MC cable supported by an MC connector, an EMT nipple would be supported by the connectors in a far superior fashion.
In general connectors are not considered to be raceway supports. There is a specific rule that lets the MC connector support a fixture whip. The code rule would have to be changed to let the EMT connector support the raceway. I think that someone has submitted a proposal for the 2008 code to address this issue.It is, by the connectors. Certainly if we can have 6' of MC cable supported by an MC connector, an EMT nipple would be supported by the connectors in a far superior fashion.
The permission to use the connector as a support is very specific. Without such a permission a connector is not a raceway support.330.30(C) ... (2) Is not more than 1.8 m (6 ft) in length from the last point of cable support to the point of connection to a luminaire (lighting fixture) or other piece of electrical equipment and the cable and point of connection are within an accessible ceiling. For the purpose of this section, Type MC cable fittings shall be permitted as a means of cable support.