Multiplexed [Tri & Quad] Overhead Service & Secondary Cables.

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bigduvid

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Subject: Multiplexed [Tri & Quad] Overhead Service & Secondary Cables.

Is there any code restriction of using Multiplexed Overhead Cables for feeding a garage from the house or between any two structures as a feeder to a sub panel or dedicated equipment use?

Multiplexed Overhead Cables is not listed in the NEC. There is no UL standard for Overhead Service and Secondary Cables. They meet or exceed the requirements ANSI/ICEA S-76-474. The standard includes sunlight resistant requirements. The standard does not require the conductors or cable to be marked sunlight resistant.
 
bigduvid said:
Subject: Multiplexed [Tri & Quad] Overhead Service & Secondary Cables.

Is there any code restriction of using Multiplexed Overhead Cables for feeding a garage from the house or between any two structures as a feeder to a sub panel or dedicated equipment use?

Multiplexed Overhead Cables is not listed in the NEC. There is no UL standard for Overhead Service and Secondary Cables. They meet or exceed the requirements ANSI/ICEA S-76-474. The standard includes sunlight resistant requirements. The standard does not require the conductors or cable to be marked sunlight resistant.
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310.15(B)(17)table for conductors in free air.
 
310.15(B)(17)table is for single conductors. Mutiplex is a cable.

See 396.10(B)
The NEC handbook states "Some of the triplex and quadplex cable used by the utilities as service-drop cable does not use conductors recognized in Table 310.13 and does not meet the requirements of Article 310. Such triplex and quadplex would, therefore, be acceptable where approved by the authority having jurisdiction......"
 
This has always baffled me

This has always baffled me

There are probably millions of miles of triplex and quadraplex strung in free air in the US (and through out the world). Very little of it is burning down and causing fires or presenting a shock hazard. Most of it is doing this without benefit of what we would consider a proper OCPD.

Yet people get their tights in a twist when some poor schmuck wants to run it between his house and his garage.

Beats me!:?
 
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