The 1990 National Electric Code set forth a new category and organization of multipur- pose cables. These fall into articles 725, 760, and 800. The diagram below summarizes the new categories and organization. Solid lines with arrows indicate substitution may be made in the direction of the arrow. Dashed lines with arrows indicate substitution with restrictions may be made in the direction of the arrow.

Multi-purpose NEC 800 Commun-ications NEC 800 Remote Control NEC 725 Fire Protection NEC 760
Plenum UL 910
Riser UL 1666
General UL 1581
Restricted Residential
National Electric Code
Note that local fire marshals enforce their municipal codes in accordance with their local laws. Awareness of these local codes is essential.