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E12-422 — Circuit Breaker

Equipment Type
Circuit Breaker
Class Code
E12-422
Description
Circuit breaker, Metal Clad
Failure Rate per Year (failures/year)
0.006422
Failures (count)
4
Mdt Hours (h)
2.37
Mtbf Hours (h)
1,364,063
Mttm Hours (h)
2.38
Mttr Hours (h)
2
Standard
IEEE Std 3006.8-2018 Table 2
Survey
Usace Prep
Unit Years (unit-years)
622.9

Source: IEEE Std 3006.8-2018 Table 2

Circuit_Breaker — class code E12-422 · failure rate per year 0.00642199 failures/year · mtbf hours 1364063 h · unit years 622.9 unit-years · mdt hours 2.37 h | Equipment Failure Rates | Engineering Database