splices and taps allowed?

[jimport]

I know my thoughts but just wanted to see others views on this topic, specifically the issue of whether the space needs to be designated for the purpose of splices and taps or is it just calculating the available volume and using the correct percentage of fill similar to a regular junction box.

http://www.inspectionnews.net/home_...ial-inspection/20993-power-ac-condensers.html

Any data to backup your thoughts would be appreciated.

 

[hurk27]

I know my thoughts but just wanted to see others views on this topic, specifically the issue of whether the space needs to be designated for the purpose of splices and taps or is it just calculating the available volume and using the correct percentage of fill similar to a regular junction box.

http://www.inspectionnews.net/home_...ial-inspection/20993-power-ac-condensers.html

Any data to backup your thoughts would be appreciated.

What can be said?

He dwells upon just the part that fits his theory of code

he wishes to stop at

312.8 Enclosures for Switches or Overcurrent Devices.
- - Enclosures for switches or overcurrent devices shall not be used as junction boxes, auxiliary gutters, or raceways for conductors feeding through or tapping off to other switches or overcurrent devices,

But doesn't acknowledge this part of the same article:

unless adequate space for this purpose is provided. The conductors shall not fill the wiring space at any cross section to more than 40 percent of the cross-sectional area of the space, and the conductors, splices, and taps shall not fill the wiring space at any cross section to more than 75 percent of the cross-sectional area of that space.

The part in red clearly says your allowed up to 75% fill area for splices and taps.

A clear example of Charlies rule

 

[suemarkp]

I agree. If that space has to be listed for use as an external junctioning space, then the GenTran panels would not be able to be retrofitted to any panel -- they require splices in the panelboard which go to overcurrent devices in a separate GenTran enclosure.

 

[LarryFine]

If that space has to be listed for use as an external junctioning space, then the GenTran panels would not be able to be retrofitted to any panel -- they require splices in the panelboard which go to overcurrent devices in a separate GenTran enclosure.

As do most service upgrades.

 

[radiopet]

I know my thoughts but just wanted to see others views on this topic, specifically the issue of whether the space needs to be designated for the purpose of splices and taps or is it just calculating the available volume and using the correct percentage of fill similar to a regular junction box.

http://www.inspectionnews.net/home_...ial-inspection/20993-power-ac-condensers.html

Any data to backup your thoughts would be appreciated.

Is it possible you do not actually understand the application and are actually seeking assistance...either way I think it has been explained well here by others with good enough data.

 

[infinity]

I couldn't view the photo's but it seems, as others have pointed out, that one guy over on that forum is not reading the entire wording of 312.8. A pretty common mistake. IMO it's almost impossible to exceed the 75% in any given enclosure.

312.8 Enclosures for Switches or Overcurrent Devices.
Enclosures for switches or overcurrent devices shall not be used as junction boxes, auxiliary gutters, or raceways for conductors feeding through or tapping off to other switches or overcurrent devices, unless adequate space for this purpose is provided. The conductors shall not fill the wiring space at any cross section to more than 40 percent of the cross-sectional area of the space, and the conductors, splices, and taps shall not fill the wiring space at any cross section to more than 75 percent of the cross-sectional area of that space.