392.56 Cable Splices. (2011)

[cripple]

Section 300.15 clearly requires a box or conduit body for all cable systems at each conductor splice point, outlet point, switch point, junction point, termination point, or pull point, unless otherwise permitted in 300.15(A) through (L). All wiring methods in chapter 3 without a removable cover require a box or refer you back to 300.15. Section 90.3 states that the first 4 chapters apply generally and chapters 5, 6, and 7 supplement or modify the general rules.
My question is why is it, that section 392.56 permit splicing of cables in cable tray without using box or conduit body. Section 392.56 has no reference to 110.14 or 300.15. I know that cable tray is not a wiring method and is defined as a structural system used to securely fasten or support cables and raceways systems. Since cable tray requirements are located in chapter 3 it should not modify the general rule or is there something I'm over looking or not grasping.

 

[ceb58]

Section 300.15 clearly requires a box or conduit body for all cable systems at each conductor splice point, outlet point, switch point, junction point, termination point, or pull point, unless otherwise permitted in 300.15(A) through (L). All wiring methods in chapter 3 without a removable cover require a box or refer you back to 300.15. Section 90.3 states that the first 4 chapters apply generally and chapters 5, 6, and 7 supplement or modify the general rules.
My question is why is it, that section 392.56 permit splicing of cables in cable tray without using box or conduit body. Section 392.56 has no reference to 110.14 or 300.15. I know that cable tray is not a wiring method and is defined as a structural system used to securely fasten or support cables and raceways systems. Since cable tray requirements are located in chapter 3 it should not modify the general rule or is there something I'm over looking or not grasping.

I would say the word "accessible" is what is key. Splicing in a cable tray would be accessible. 300.15 is speaking about concealed wiring.

 

[cripple]

392.56 Cable Splices. (2011)

I would say the word "accessible" is what is key. Splicing in a cable tray would be accessible. 300.15 is speaking about concealed wiring.

The accessible mentioned in the Code applies to wiring methods with interior access the only wiring method with interior access are wireways and auxiliary gutters, which have removable covers. Cable tray is a support system not a wiring method. When working with conduits, tubing or cabling systems a box or conduit body is required. 300.15 does not require a box or conduit bodies if the fitting is identified for the use, non which mentioned in 392.8. Looking and reading 392.8 it does say splices are to be made and insulated by an approved method, so I guess it would be up to the inspector on the job.

 

[ceb58]

The accessible mentioned in the Code applies to wiring methods with interior access the only wiring method with interior access are wireways and auxiliary gutters, which have removable covers. Cable tray is a support system not a wiring method. When working with conduits, tubing or cabling systems a box or conduit body is required. 300.15 does not require a box or conduit bodies if the fitting is identified for the use, non which mentioned in 392.8. Looking and reading 392.8 it does say splices are to be made and insulated by an approved method, so I guess it would be up to the inspector on the job.

IMHO you are comparing apples to oranges. The wording in 392.8 (2008) is the same as 392.56 (2011) You cannot compare the wiring method(s) in 300.15 to what is called for in 392.56 They are two different animals.