NECA's Revised Standard for Installing and Maintaining Switchboards

The National Electrical Contractors Association (NECA) published NECA 400-2007, Standard for Installing and Maintaining Switchboards(ANSI). This American National Standards Institute (ANSI)-approved standard describes the installation and maintenance procedures for dead-front distribution switchboards rated 600 volts or less. It includes detailed information about installation, inspection and energizing the equipment, as well as maintenance and recommendations for management of adverse circumstances. Installation and maintenance guidance is complemented by illustrations and useful industry references.

“The photos and illustrations are the best thing about this book,” said Caity Byrne, NECA’s associate director of standards. “They really bring the Code rules and maintenance best practices alive in a way that plain text just can’t do.”

NECA 400-2007 is the second edition of a standard originally published in 1998. It has been updated to reflect current National Electrical Code rules for switchboards and to reference NFPA 70E, Standard for Electrical Safety in the Workplace.

NECA members and chapter offices may download a free copy of NECA 400-2007, Standard for Installing and Maintaining Switchboards(ANSI) in PDF format. Visit for ordering information.    EC


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