ARTICLE 330 – METAL-CLAD CABLE: TYPE MC

330.12  Revise item (1) as follows:

330.12  Use Not Permitted.  Type MC cable shall not be used under either of the following conditions:

   (1)   Where Subject to Physical Damage

   Informational Note: See the 2016 San Francisco Electrical Code Section 300.4 (I) Subject to Physical Damage.

   …

   Exception: Type MC Cable #4 AWG or larger, installed in a lockable room dedicated solely to an electrical service and distribution equipment and accessible only to qualified personnel, shall be considered to have equivalent protection from physical damage when installed in a neat and workman like manner, properly supported, and securely fastened in place.

330.40  Revise this section as follows:

330.40  Boxes and Fitting.Fittings used for connecting Type MC cable to boxes, cabinets, or other equipment shall be listed and identified for such use. An approved insulating bushing shall be installed between the conductors and the sheath of MC Cable where the manufacturer recommends their use.

330.108  Revise this section as follows:

330.108  Equipment Grounding Conductor.Where Type MC cable is used to provide an equipment grounding conductor, it shall comply with 250.118(10) and 250.122. An equipment grounding conductor, sized as required by Table 250.122, shall be provided within the cable assembly.