Code Violations?

6 replies [Last post]
rbarnett's picture
Joined: 2014-03-04

What is the most violated section of the NEC?

Barjack's picture
Joined: 2014-04-29

110.3(B) Installation and Use. Listed or labeled equipment
shall be installed and used in accordance with any instructions
included in the listing or labeling.

inspector141's picture
Joined: 2013-11-22

Grounded and equipment grounding conductors sizes 6 and smaller are required to be continuous in color white or green. Most contractors install sizes 6 and 8 in black insulation and tape white or green, which is a violation of Section 200.6(A) and Section 250.119. However, this seems to be generally accepted with a nod and a wink in the inspection community. Of course, not every inspector or contractor accepts this, but many do.

rbarnett's picture
Joined: 2014-03-04

How about 408.4(A) in reference to Panelboards:

"Every circuit and circuit modification shall be legibly identified as to its clear, evident, and specific purpose or use. The identification shall include an approved degree of detail that allows each circuit to be distinguished from all others."

skd76's picture
Joined: 2013-09-11

Typical plancheck comment: One or more circuit names are used more than once. Identification of all circuits originating in panelboards must be sufficient to identify each circuit separately from all others. Either specific geographical description, unique names appearing on equipment, or otherwise clear and unmistakable descriptions are needed for required circuit identification.

Provide circuit names on all schedules that are unique and readily identify the equipment or area served by that circuit. Offices or rooms that are labeled by individual’s name (“Sam’s office”) or by a vague (“Big Projects room”) are not acceptable. These are transient occupancies.

Repeated references (“furniture”, “lights”, “exhibit” “office”, “lathe”, or “mill”) are also not acceptable. These are non-specific descriptions.

When multiple iterations of similar equipment are the case, provide specific instructions for permanent labeling of equipment to match the circuit naming convention. Method, materials and text. This identification must be in a prominent location and not concealed.

This required identification may be problematic considering how the circuits are named at this point. Perhaps a solution that would post a permanent, protected branch circuit physical map to clarify this for future users? Posted at each electrical panelboard as it applies to that equipment. That sort of mitigation might be possible to satisfy the intent of this rule with an equally safe alternate without requiring a unique naming convention. See the Code, Sec. 408.4 for more information.

Paul Abernathy's picture
Joined: 2012-12-21

The single most violated Code reference has to be 110.3(B), as someone previously stated. More specifically, the underlined mass violation of this rule would be following the manufacturers torque instructions, as we all know every electrician carries a torque screw driver or torque wrench around with them. However, as a wire and cable guy, I know that the reliability of the terminations onto conductors relies heavy on the fact that the lugs and terminals are torqued correctly....and sadly we know they are not.

There is a proposal in the 2017 NEC to require inspectors to verify proper torque on terminations, but sadly I am more than sure this is an unenforceable pipe dream from the submitter. The electrical inspector will simply not be able to enforce this, verify this and we know that electricians (some of them) will ignore this if accepted into the NEC. What the inspector will do is ask to see the torque device at rough in time and verify it's existence but it will not verify it's actual use.

rbarnett's picture
Joined: 2014-03-04

Wow! I'll follow the torque proposal (I mean public input). Can't imagine that going through. But I agree it is an issue and you hit the nail on the head. Those torque specs don't come out of thin air. There's a reason for manufacturers instructions. Heating and cooling of terminals has to loosen those terminations.

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