β¨ Electricity System Statistics
3814
NEW ZEALAND GAZETTE
No. 146
Reliability Performance Measures (Schedule 1, Part 5)
| Interruptions | Average Interruption Targets | Interruption Targets | Actual Interruptions | ||||
|---|---|---|---|---|---|---|---|
| Class | 2001/05 | 2001 | 2000 | 1999 | 1998 | 1997 | |
| Planned Interruptions | Class A | 1 | 0 | ||||
| Class B | 156 | 376 | 485 | 481 | |||
| Unplanned Interruptions | Class C | 179 | 140 | 131 | 190 | ||
| Class D | 2 | 0 | |||||
| Total | 338 | 516 | 616 | 671 |
4 Proportion of Total Class C Interruptions not restored: (= a/b*100/1)
where -
a = No. of interruptions not restored within
b = Total number of Class C interruptions
Proportion expressed as a percentage
| Within 3 Hours | Within 24 Hours | |
|---|---|---|
| 47 | 0 | |
| 179 | 179 | |
| 26.26% | 0.00% |
Reliability Performance Measures (Schedule 1, Part 5)
5
| Faults | Average Faults Targets | Faults Targets | Actual number of faults | |||
|---|---|---|---|---|---|---|
| 2001/05 | 2001 | 2000 | 1999 | 1998 | 1997 | |
| Faults per 100 circuit kilometres of prescribed voltage electric line | Nominal Voltage | |||||
| 50kV | 4 | 5 | 6 | 7 | ||
| 11kV | 6 | 6 | 6 | 8 | ||
| Total | 10 | 11 | 12 | 15 |
6
| Faults | Actual number of faults | |||
|---|---|---|---|---|
| 2000 | 1999 | 1998 | 1997 | |
| Faults per 100 circuit kilometres of underground prescribed voltage electric line | Nominal Voltage | |||
| 11kV | 4 | 9 | 5 | |
| Total | 4 | 9 | 5 |
7
| Faults | Actual number of faults | |||
|---|---|---|---|---|
| 2000 | 1999 | 1998 | 1997 | |
| Faults per 100 circuit kilometres of overhead prescribed voltage electric line | Nominal Voltage | |||
| 50kV | 4 | 5 | 6 | |
| 11kV | 6 | 6 | 6 | |
| Total | 10 | 11 | 12 |
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Online Sources for this page:
VUW Te Waharoa —
NZ Gazette 2000, No 146
Gazette.govt.nz —
NZ Gazette 2000, No 146
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Electricity System Statistics
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π Trade, Customs & IndustryEnergy, Electricity, Statistics, Interruptions, Faults, Performance Measures