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E33-130 — Relay

Equipment Type
Relay
Class Code
E33-130
Description
Relay, electromechanical,
Failure Rate per Year (failures/year)
0.000813
Failures (count)
3
Mdt Hours (h)
3.36
Mtbf Hours (h)
10,771,400
Mttm Hours (h)
3.35
Mttr Hours (h)
8
Standard
IEEE Std 3006.8-2018 Table 2
Survey
Usace Prep
Unit Years (unit-years)
3,688.8

Source: IEEE Std 3006.8-2018 Table 2

Relay — class code E33-130 · failure rate per year 0.000813265 failures/year · mtbf hours 10771400 h · unit years 3688.8 unit-years · failures 3 count | Equipment Failure Rates | Engineering Database