National Electrical Installation Standards

Standards as High as Your Own


Featured Standards

neca 111-2017  cover

NECA 111-2017, Standard for Installing Nonmetallic Raceways (RNC,ENT, LFNC) (ANSI)

Describes installation procedures for nonmetallic raceways of circular cross-section used for electrical power wire and cable, communications wiring, or fiber optic cables.

» Learn More

NECA 305-2018, Standard for Installing Fire Alarm System Job Practices

This Standard describes practices for Installing, testing, and maintaining fire alarm systems. These job practices represent a minimum level of quality for fire alarm system installations.

» Learn More

State Regulationsusa country shape

Find the major provisions of electrical code, enforcement, and contractor/electrician licensing requirements for each state in the U.S.

US Electrical Codes & Regulations by State »
Licensing Information by State ».

NEC Adoption by State

Building Codes Assistance Project Energy Code Adoption

Code Question of the Daytextbook

  • Friday, July 19, 2019
    CQD: 7/19/2019

    Hello all, I have a new storage building at a local high school being fed from an existing panel in the school. The engineer had me pull a grounding conductor in with the feeders, but my inspector is saying I need to bond my neutral at the disconnect for the new building.... my take is that the neutral is already bonded at the main switchgear for the school and bonding the neutral again would cause the grounding conductor to be a parallel run with the neutral back to the panel the building is fed from (not the switchgear). For this on whether or not the neutral should be bonded at the new building and if so, should I eliminate the ground I pulled in with the feeders...

    Fyi the service is  225A 480/277V 3 phase 4 wire, not that that should change anything.

    Thank you,

    Jeremy Buxman

  • Thursday, July 18, 2019
    CQD: 7/18/2019
    View Question and Answer

How's your knowledge?
» Get the Answer!