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E12-221 — Circuit Breaker

Equipment Type
Circuit Breaker
Class Code
E12-221
Description
Circuit breaker, Fixed (includes
Failure Rate per Year (failures/year)
0.000011
Failures (count)
1
Mdt Hours (h)
13.62
Mtbf Hours (h)
75,667,016
Mttm Hours (h)
13.62
Standard
IEEE Std 3006.8-2018 Table 2
Survey
Usace Prep
Unit Years (unit-years)
88,546.5

Source: IEEE Std 3006.8-2018 Table 2

Circuit_Breaker — class code E12-221 · failure rate per year 1.1294e-05 failures/year · mtbf hours 75667016 h · unit years 88546.5 unit-years · mdt hours 13.62 h | Equipment Failure Rates | Engineering Database