National Electrical Installation Standards

Standards as High as Your Own


Raising the Bartool belt

What are NEIS? National Electrical Installation Standards (NEIS) are the first and only quality and performance standards for electrical construction. They go beyond the minimum safety requirements of the National Electrical Code (NEC) to define what is meant by installing electrical products and systems in a “neat and workmanlike manner.”

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Featured Standardsplyers with yellow handle


NECA 407-2015, Standard for Installing and Maintaining Panelboards

This standard describes installation and maintenance procedures for panelboards, and special procedures used after adverse operating conditions such as a short-circuit, ground-fault, or immersion in water. This standard applies to panelboards rated 600 Volts AC or less, with main disconnects or lugs rated 1600 Amperes or less, and with feeder or branch circuit overcurrent devices rated 1200 Amperes or less. This publication applies to single panelboards, multi-section panelboards, and load centers that are installed in the fiend and used for distributing power for commercial, institutional, and industrial loads in nonhazardous locations both indoors and outdoors.
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NECA 409 - 2015, Standard for Installing and Maintaining Dry-Type Transformers (ANSI)

Describes installation and maintenance practices for dry-type, two-winding transformers used for supplying power, heating, and lighting loads for commercial, institutional, and industrial use in nonhazardous locations, both indoors and outdoors. NECA 409 is approved as an American National Standard (ANS).
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News & Updateswrench

  • NEW THIS YEAR at the 2015 NECA Safety Professionals Conference

    Friday, May 01, 2015
    NEW THIS YEAR at the 2015 NECA Safety Professionals Conference: HR and the Safety/Risk Management Relationship – Keith Wheeler, SPHR, SHRM-SCP, Electrical Contractors Safety Responsibilities and Strategies – Discussion, and “Safety Training A to Z – From Orientation, through Refreshers, to New Requirements (like GHS)” – Jonathan Klane
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  • 2015 NECA Safety Awards Winners

    Monday, Apr 20, 2015
    NECA Safety is proud to announce the winners of the 2015 Safety Excellence and Zero Injury Awards. Since its inception, the NECA Safety Awards program has continued to grow in applicants and winners. This year seen each NECA District had a winner.
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State Regulationsusa country shape

Find the major provisions of electrical code, enforcement, and contractor/electrician licensing requirements for each state in the U.S. It is based upon information supplied by NECA Chapters.

State Electrical Regulations
State Low Voltage Licensing

Code Question of the Daytextbook

  • Thursday, March 30, 2017
    CQD: 3/30/2017

    Sir, I have worked in the field for many years and mostly on doing rewires and new home construction or additions to existing homes. In normal practice here in Minnesota we are normally using romex for the wiring system and all of it now is NMB so it has better ratings than the old NM. My usual practice is to wire completely using plastic boxes for inside outlets and for flush mounted outlets for the outside. If that is not possible (in doing old work or adding an outlet for outside) then a metal box is cut into the outside wall or a surface mount wp box is used. Along with the "in use cover" required on almost all outside outlets now days, we are also required to use a GFI or receptacle rated for damp locations. I sometimes try to install the GFI receptacle inside to prevent exposure of an expensive item to the weather at all. But in all cases we are to use a receptacle suited for damp locations.

    The whole issue should be made plain by code experts or at least a paragraph in the code book which states once and for all if romex is ever allowed to be enclosed in pipe of any kind. There seems to be as many answers to that question as there are inspectors and code experts.

    Ken Lynes

  • Wednesday, March 29, 2017
    CQD: 3/29/2017
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