Code Clusters: No Cover Charge


Code Clusters is a fond look back at some of the most interesting and outlandish Code violations published in the pages of EC&M magazine over the past 15 years — the item below is the fourth in a series of 10. Questions? Comments? We’d love to hear your feedback! Post your thoughts in the box below.


NEC Violations Illustrated - Metal BoxNo Cover Charge

All references are based on the 1999 edition of the NEC.

A smaller sized extension ring was installed on a larger sized metal box to gain more space for numerous No. 12 AWG circuit conductors. Obviously, the space this ring provided was insufficient for this overcrowded box. Also, the one screw used to attach the smaller ring left the box improperly grounded. In addition, the connectors (some of which were not designed for use with this wiring method) were loose, and it was impossible to put the cover on the box.

Sec. 300-14 requires at least 6 in. of free conductor, measured from the point in the box where it emerges from its raceway or cable sheath, at each outlet, junction, and switch point for splices or the connection of fixtures or devices. Where the opening to an outlet, junction, or switch point is less than 8 in. (in any dimension), each conductor shall be long enough to extend at least 3 in. outside the opening.

See next violation: The Latest in Low-Budget Utility Pole Design

Hide comments


  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.