This standard applies to lightning protective devices designed for repeated operations to limit voltage surges on 60 cycle power circuits1 and to interrupt repeatedly power follow current. It applies specifically to lightning arresters of the valve and expulsion types as defined in this standard. Arresters claimed to be in accordance with this standard must meet the tests specified herein.
- Status
- Superseded Standard
- Superseded by
- 28B-1956
- History
-
- ANSI Approved:
- 1943-07-23
- Published:
- 1950-01-31
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