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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NECA 202-2013 Standard for Installing and Maintaining Industrial Heat Tracing Systems (ANSI)

This standard describes procedures for the installation, testing, and documentation of electrical freeze protection and process heat tracing systems. Heat tracing cable types covered by this publication include: self-regulating, constant wattage, and zone heating cables and mineral insulated (MI) heating cables.NECA 202 is approved as an American National Standard (ANSI).
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NECA/NEMA 605-2005, Recommended Practice for Installing Underground Nonmetallic Utility Duct (ANSI)

Describes the installation, shipping, and handling of underground single bore nonmetallic duct for power, lighting, signaling, and communications applications. Developed jointly with the National Electrical Manufacturers Association, NECA/NEMA 605 is approved as an American National Standard (ANS).

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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, January 30, 2015
    CQD: 1/30/2015

    Non-standard size junction box fill

    Good morning CQD readers. My question is how do you figure the maximum number of conductors, smaller than 4awg, that are allowed in a large junction box. Let's use an18x18x6 for example. That is assuming that there are dedicated neutrals for every circuit conductor, so every conductor is obviously considered current carrying except for the EGC. And for sake of discussion lets consider all of the conductors to be 10awg. I'm looking at 314.16 and am not clear where else to look. Thank you.

    Jason P

  • Thursday, January 29, 2015
    CQD: 1/29/2015
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