Equipment Failure Rates: Fuse
E17-100A to E17-300
Equipment failure rates, MTBF, MTTR, and downtime statistics for electrical and mechanical plant equipment. Primary data from the USACE PREP reliability database (IEEE Std 3006.8-2018 Table 2), covering ~280 equipment classes. Supplemental data from IEEE motor and transformer surveys.
| equipment type | class code | description | failure rate per year (failures/year) | failures (count) | mdt hours (h) | mtbf hours (h) | mttr hours (h) | standard | survey | unit years (unit-years) |
|---|---|---|---|---|---|---|---|---|---|---|
| Fuse | E17-100A | Fuse, 0 kV to 5 kV | 0.000369 | 0 | — | 32,271,812 | — | IEEE Std 3006.8-2018 Table 2 | USACE PREP | 1,878.8 |
| Fuse | E17-200A | Fuse, > 5 kV ≤ 15 kV | 0.000193 | 0 | — | 61,672,329 | — | IEEE Std 3006.8-2018 Table 2 | USACE PREP | 3,590.5 |
| Fuse | E17-300 | Fuse, > 15 kV | 0.101541 | 483 | 4 | 86,270 | 4 | IEEE Std 3006.8-2018 Table 2 | USACE PREP | 4,756.7 |
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