Inactive-Withdrawn Standard

ASA C39.1-1959

ASA American Standard Requirements for Electrical Indicating Instruments Panel, Switchboard, and Portable Instruments

This standard applies to the following kinds of electrical indicating instruments for direct and alternating current, including instruments with prefixes such as micro-, kilo-, etc: (1) Ammeters (2) Voltmeters (3) Wattmeters (4) Varmeters (reactive-volt-ampere meters) (5) Frequency meters (6) Power-factor meters (7) Indicating instruments functioning on the above principles, but indicating derived quantities 1.2 This standard may apply, with suitable exceptions, to instruments constructed for special requirements. For example, ultrasensitive direct-current micro ammeters, high-resistance voltmeters, thermo-milliammeters, thermo-voltmeters of the vacuum-couple type, and instruments with special and unusual ranges. 1.3 This standard does not apply to the following kinds of instruments: (1) Indicating instruments provided with arrangements for curve drawing, contact making, etc (2) Small instruments of types and sizes where the indications are only approximate; for example, small polarized-vane ammeters used on automobiles, battery-charging outfits, etc

Status
Inactive-Withdrawn Standard
Superseding
C39.1-1955
Board Approval
1959-05-11
History
ANSI Approved:
1959-06-01
Published:
1959-06-30

Working Group Details

Other Activities From This Working Group

Current projects that have been authorized by the IEEE SA Standards Board to develop a standard.


No Active Projects

Standards approved by the IEEE SA Standards Board that are within the 10-year lifecycle.


No Active Standards

These standards have been replaced with a revised version of the standard, or by a compilation of the original active standard and all its existing amendments, corrigenda, and errata.


No Superseded Standards

These standards have been removed from active status through a ballot where the standard is made inactive as a consensus decision of a balloting group.


No Inactive-Withdrawn Standards

These standards are removed from active status through an administrative process for standards that have not undergone a revision process within 10 years.


No Inactive-Reserved Standards
Subscribe

Sign up for our monthly newsletter to learn about new developments, including resources, insights and more.