Superseded Standard

ANSI/IEEE 28-1974

ANSI/IEEE Standard for Surge Arresters for Alternating Current Power Circuits

This document supersedes IEEE Std 28-1972 (ANSI C62.1-1971) and revises many portions of the previous edition. Three new significant design tests have been added to determine: (1) The highest 1.2 x 50 standard impulse which the surge arrester will allow without sparkover (2) The effect of external contamination on sparkover (3) Surge arrester disconnector characteristics Additional substantive changes include: (1) New definition of prorated section (2) Revision of Table 1 to include a 25 kV distribution surge arrester and special ratings for rotating machine protection (3) Increase in maximum rate-of-rise for front-of-wave sparkover test (4) Expanded range of currents in the discharge voltage test (5) Reduced high current test for station surge arresters to 65 kA (6) Expanded Table 4 to include test values for 550 kV and 800 kV system surge arresters (7) General revision of pressure-relief test

Superseded Standard
Superseded by
Board Approval
ANSI Approved:

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No Superseded Standards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No Inactive-Withdrawn Standards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 to our Newsletter

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