National Electrical Installation Standards

Standards as High as Your Own

 

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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

NECA407-15Cover_WEB

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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NECA409R_09

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

  • Friday, December 02, 2016
    CQD: 12/2/2016

    Thank you, for the incredible service you provide. Currently I have a 50 hp motor in an air compressor. It is fed with 3 phase 460 volt. The conductors are 3 each THHN #6 and it is coming off an MCC cabinet with from a 70 amp breaker. Does this meet the NEC requirements? Do I need to change the breaker and the wire size?

    Anthony Tropea

  • Thursday, December 01, 2016
    CQD: 12/1/2016
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