Code Quiz: Vertical Support Requirements for Cable Routing Assemblies

March 26, 2015

NEC rules on installing communication wires and cables in cable routing assemblies in vertical runs

Fill in the blank with the appropriate answer.

When installing communication wires and cables in cable routing assemblies, vertical runs of the cable routing assemblies shall be supported at intervals not to exceed _______, unless listed for other support intervals, and shall not have more than one joint between supports

A) 2 ft

B) 3 ft

C) 4 ft

D) 10 ft

Find the Answer

Answer: C

The installation methods of communications circuits installed within buildings are outlined in Part V of Art. 800. As noted in Sec. 800.110(C)(2), when installing communication wires and cables in cable routing assemblies in vertical runs, supports shall be installed at intervals not to exceed 4 feet, unless listed for other support intervals, and shall not have more than one joint between supports.

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