28-1957 - AIEE American Standards for Lightning Arresters for Alternating Current Power Circuits
Standard Details
These standards apply to lightning protective devices designed to limit repeatedly voltage surges on 50 or 60 cycle per second power circuits by passing surge discharge current and subsequently automatically interrupting the flow of follow current. This standard applies to devices for separate mounting and to those supplied integrally with other equipment
Status
Superseded by
History
Working Group Details