Code Quiz: Medium Voltage Cable Support

Type MV cables terminated in equipment or installed in pull boxes or vaults shall be secured and supported by metallic or nonmetallic supports suitable to withstand the weight by the use of cable ties _________ for securement and support; or other approved means, at intervals not exceeding 5 ft from terminations or a maximum of 6 ft between supports.

A) UV and wet location rated
B) red and black in color
C) listed and identified
D) orange and blue in color

See the answer below.

 

 

 

 

 

 

 

 

Answer: C

As specifically outlined in a new requirement in the 2017 NEC [Sec. 328.30], “Type MV cable terminated in equipment or installed in pull boxes or vaults shall be secured and supported by metallic or nonmetallic supports suitable to withstand the weight by cable ties listed and identified for securement and support, or other approved means, at intervals not exceeding 5 ft from terminations or a maximum of 6 ft between supports.”

Owen is the owner and president of National Code Seminars and the holder of master electrician certifications in 46 states. He can be reached at [email protected]

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