stevenal
Electrical
- Aug 20, 2001
- 3,811
Section 5.7 describes power circuit breaker leakage testing. This test is to be performed over a time period "t" "of sufficient length to permit a determination of the pressure drop." We'd like to see close to zero drop of course. C37.04 allows 1% per year, but a year long test seems rather unreasonable. Any idea what length of time is sufficient? Application is a 120 kV SF6 breaker. Thanks.
