Call for Members (ANS Consensus Bodies) C37 Anticipates New Projects Updating Existing Standards The following ANSI/NEMA standards created by ANSI Accredited Standards Committee 37 (C37) for Switchgear need to be revised and updated:

ANSI/NEMA C37.50-2012, Low-Voltage AC Power Circuit Breakers Used in Enclosures – Test Procedures ANSI/NEMA

C37.51-2003 (R2010), Metal-Enclosed Low-Voltage AC Power Circuit Breaker Switchgear Assemblies – Conformance Test Procedures ANSI/NEMA

C37.54-2002 (R2010), Indoor Alternating Current High-Voltage Circuit Breakers Applied as Removable Elements in Metal-Enclosed Switchgear – Conformance Test Procedures ANSI/NEMA

C37.55-2002 (R2010), Medium-Voltage Metal-Clad Assemblies – Conformance Test Procedures ANSI/NEMA

C37.57-2003 (R2010), Metal-Enclosed Interrupter Switchgear Assemblies – Conformance Testing ANSI/NEMA C37.58-2002 (R2010), Indoor AC Medium-Voltage Switches for Use in MetalEnclosed Switchgear – Conformance Test Procedures ANSI/NEMA

C37.85-2002 (R2010), Alternating-Current High-Voltage Power Vacuum Interrupters – Safety Requirements for X-Radiation Limits While the committee is open to all materially-affected, interested parties,

C37 is actively seeking additional membership from the User and General Interest membership categories. If you are interested, please contact Gary MacFadden at gary.macfadden@nema.org.