Three power distribution series NEIS have recently completed the revision process and have been approved by ANSI. NECA 407-2015 Standard for Installing and Maintaining Panelboards, NECA 408-2015 Standard for Installing and Maintaining Busways, and NECA 409-2015 Standard for Installing and Maintaining Dry-Type Transformers have each been revised and are now available from the National Electrical Contractors Association (NECA).
NECA’s National Electrical Installation Standards (NEIS) are revised on a cyclical basis based on American National Standards Institute’s (ANSI) Essential Requirements for standards developers. NECA is an ANSI-Accredited Standards Development Organization.