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Is MC Cable with “interlocked jacket rated for” Ducts or Plenums?

April 26, 2017cable ducts jacket MC plenums rated

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Is MC Cable with “interlocked jacket rated for” Ducts or Plenums?

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No – Neither “interlocked jacket armor” or “PVC Jacketed MC Cables” can be installed in a plenum. Interlocked Type MC Cable without an overall nonmetallic jacket can be installed in air-handling areas. Please reference NEC® 300.22(C).