Equipment Failure Rates: Cable
E06-222 to E08-100
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) | mttm hours (h) | mttr hours (h) | standard | survey | unit years (unit-years) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Cable | E06-222 | Cable, ac, 601 kV to 15 kV, | 0.012799 | 1 | — | 684,408 | — | — | IEEE Std 3006.8-2018 Table 2 | USACE PREP | 78.1 |
| Cable | E06-223 | Cable, ac, 601 kV to 15 kV, | 0.019938 | 454 | 4.01 | 439,356 | 3.97 | 5.13 | IEEE Std 3006.8-2018 Table 2 | USACE PREP | 22,770.3 |
| Cable | E07-100 | Cable, aerial, 0 kV to 15 kV, | 0.047162 | 312 | 1.82 | 185,742 | — | 1.82 | IEEE Std 3006.8-2018 Table 2 | USACE PREP | 6,615.5 |
| Cable | E07-200 | Cable, aerial, > 15 kV, per 1.6 | 0.004112 | 127 | 2.08 | 2,130,325 | 0.35 | 2.54 | IEEE Std 3006.8-2018 Table 2 | USACE PREP | 30,884.9 |
| Cable | E08-100 | Cable, dc, insulated, per 305 m | 0.006314 | 3 | 2 | 1,387,400 | — | 2 | IEEE Std 3006.8-2018 Table 2 | USACE PREP | 475.1 |
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