code for straping emt, and rigid from box, and coupling

[zappy]

For emt I thought it was 3' from a box or a coupling. Foreman says it's 5' when it's one solid piece.:? I never heard that before. Plus what the heck does that mean, a full stick? Can you please tell me what the code is and exceptions are. Thank you for your help.

 

[ceb58]

For emt I thought it was 3' from a box or a coupling. Foreman says it's 5' when it's one solid piece.:? I never heard that before. Plus what the heck does that mean, a full stick? Can you please tell me what the code is and exceptions are. Thank you for your help.

[/QUOTE]

358.30

(A) Securely Fastened.​

EMT shall be securely fastened inplace 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, devicebox, cabinet, conduit body, or other tubing termination.

Exception No. 1: Fastening of unbroken lengths shall be permitted to be increased to a distance of 1.5 m (5 ft) where structural members do not readily permit fastening within​

900 mm (3 ft).

A full stick would be just that. One uncut length of conduit.
If you were running on a solid wall you could not use the exception. And it would be for conduit only with out a box or termination.

 

[infinity]

3' or less.

 

[jeremysterling]

The five foot unbroken length rule comes in handy when piping metal buildings that have walls of Z-purlins spaced five feet apart. You set your 1900 box on the purlin and pipe up with no couplings and strap to the next purlin up. Saves you from building some weird strut rack. :thumbsup:

 

[Little Bill]

358.30

(A) Securely Fastened.​

EMT shall be securely fastened inplace 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, devicebox, cabinet, conduit body, or other tubing termination.

Exception No. 1: Fastening of unbroken lengths shall be permitted to be increased to a distance of 1.5 m (5 ft) where structural members do not readily permit fastening within​

900 mm (3 ft).

A full stick would be just that. One uncut length of conduit.
If you were running on a solid wall you could not use the exception. And it would be for conduit only with out a box or termination.

I don't understand what you are saying in the red above.:? You would have to have a box or termination to measure from. If structural members permit, you would support at 3' from the box or termination, if not, you are then permitted to go up to 5'.

 

[EEwannabe]

Clarification on supports for EMT

Clarification on supports for EMT

3' or less.

[/QUOTE
]

In a simialar application, using EMT, 2 outlet boxes with conduit running between and out each side, boxes are both supported at building roof purlins, with 16' of EMT in between which is supported in the center (8' from each box). Does this meet code? Picture above and code doesn't mention "if the box is supported". If it doesn't meet code, how do you make it meet code? This is all of the lighting in a 80,000 sq ft facility.

 

[Little Bill]

3' or less.

[/QUOTE
]

In a simialar application, using EMT, 2 outlet boxes with conduit running between and out each side, boxes are both supported at building roof purlins, with 16' of EMT in between which is supported in the center (8' from each box). Does this meet code? Picture above and code doesn't mention "if the box is supported". If it doesn't meet code, how do you make it meet code? This is all of the lighting in a 80,000 sq ft facility.

No it doesn't meet code, you would have to add a bracket/support within 3' from each box. That has nothing to do with the box support.

 

[kwired]

No it doesn't meet code, you would have to add a bracket/support within 3' from each box. That has nothing to do with the box support.

If boxes are 16 ft apart, make a support right at 3 ft from each box. The remaining 10 feet doesn't require any additional support. Or if there is a support centered between boxes use it and then provide support near box if that is easier and you are still good. Within 3 feet includes a support that is right against the termination fitting.

 

[infinity]

You might be able to use something like this:

http://www.erico.com/products/CADDYcfcComboBoxConHangers.asp

 

[Little Bill]

No it doesn't meet code, you would have to add a bracket/support within 3' from each box. That has nothing to do with the box support.

If boxes are 16 ft apart, make a support right at 3 ft from each box. The remaining 10 feet doesn't require any additional support. Or if there is a support centered between boxes use it and then provide support near box if that is easier and you are still good. Within 3 feet includes a support that is right against the termination fitting.

Can't tell if you're disagreeing with me or not, but isn't that what I just said for the most part?

 

[kwired]

Can't tell if you're disagreeing with me or not, but isn't that what I just said for the most part?

First two sentences are pretty much exactly what you said. The rest is another possibility.