Article 800.133 (A)(1)(c) Exception No. 1 says circuit separation can be provided "by a permanent barrier or listed divider."
Article 800.133 (A)(2) Exception No. 2 says circuit separtion can be provided "by a continuous and firmly fixed nonconductor, such as porcelain tubes or flexible tubing, in addition to the insulation on the wire."
My question is: Inside enclosures, what UL listing on the barrier or flexible tubing would be required to meet this requirement?
Listed flexible non-metalic tubing would be allowed. Also, I am assuming slotted plastic wire duct such as "Panduit" would be allowed.
However, I don't know if "split loom" corrugated flexible tubing would be approved for meeting the separation requirement. Split loom is similar to NMT except it is split all along its side to allow installation without de-terminating the cable.
Does anyone have any comments on this?
Article 800.133 (A)(2) Exception No. 2 says circuit separtion can be provided "by a continuous and firmly fixed nonconductor, such as porcelain tubes or flexible tubing, in addition to the insulation on the wire."
My question is: Inside enclosures, what UL listing on the barrier or flexible tubing would be required to meet this requirement?
Listed flexible non-metalic tubing would be allowed. Also, I am assuming slotted plastic wire duct such as "Panduit" would be allowed.
However, I don't know if "split loom" corrugated flexible tubing would be approved for meeting the separation requirement. Split loom is similar to NMT except it is split all along its side to allow installation without de-terminating the cable.
Does anyone have any comments on this?