Interpretation #7056

Published August 14, 2012

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Original Request

Code Version
2010
Code
ELECTRIC
Code Description
Electrical
Chapter
8
Section
cable support
Topic
cable support

Question

We are a low voltage company that installs computer network cables. On a recent inspection, we were told that in addition to supporting the cables from the deck above that we have to tie our supports to the ceiling grid. The ceiling tile guy does not like this and says that the ceiling was not engineered for this purpose. Is this a code requirement?

Answer Published 08/14/2012 at 1:09 PM

No. The code states "Cables and raceways shall not be
supported by ceiling grids." The cable must be fully
supported from the deck above, and may not be tied to the
ceiling grid.

Commentary

NEC 800.24 states, "The installation shall also conform to 300.4(D) and 300.11."