NEMA publishes standard for Watthour Meter Sockets.
Press Release Summary:
Useful to electric utilities as well as electricity meter and meter socket industries, ANSI C12.7-2014 American National Standard for Requirements for Watthour Meter Sockets covers dimensions and functions of meter test switches for transformer-rated watthour meters when used in conjunction with instrument transformers. Specifically, standard covers sockets rated up to and including 600 V, and up to and including 320 A continuous duty per socket opening.
Original Press Release:
NEMA Publishes ANSI C12.7-2014 American National Standard for Requirements for Watthour Meter Sockets
ROSSLYN, Va., —The National Electrical Manufacturers Association (NEMA) published ANSI C12.7-2014 American National Standard for Requirements for Watthour Meter Sockets. This standard is useful to electric utilities, as well as the electricity meter and meter sockets industries; and covers the dimensions and functions of meter test switches for transformer-rated watthour meters when used in conjunction with instrument transformers.
ANSI C12.7 was developed by the NEMA’s Meter Mounting/Test Equipment Division (8EI-3) and ANSI Accredited Standards Committee (ASC) 12. This standard covers the general requirements and pertinent dimensions applicable to watthour meter sockets rated up to and including 600 V, and up to and including 320 A continuous duty per socket opening.
Revisions to ANSI C12.7 include certain performance requirements covered by the latest revision of Underwriters Laboratories’ safety standard UL 414 Standard on Meter Sockets.
ANSI C12.7-2014 may be downloaded or purchased in hard copy for $82 on the NEMA website.
NEMA is the association of electrical equipment and medical imaging manufacturers, founded in 1926 and headquartered in Rosslyn, Virginia. Nearly 400 members strong, its companies manufacture a diverse set of products including power transmission and distribution equipment, lighting systems, factory automation and control systems, and medical diagnostic imaging systems. Total U.S. shipments for electroindustry products exceed $100 billion annually.
National Electrical Manufacturers Association
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