β¨ Electricity Reliability Performance Measures
3 SEPTEMBER
NEW ZEALAND GAZETTE
2993
Reliability Performance Measures (Schedule 1, Part 5)
Interruptions
| Class | Average Interruption Targets 2002/06 | Interruption Targets 2002 | Actual Interruptions 2001 | 2000 | 1999 | 1998 |
|---|---|---|---|---|---|---|
| Planned Interruptions | ||||||
| Class A | 7 | 1 | 0 | 0 | ||
| Class B | 66 | 100 | 137 | 158 | 376 | 485 |
| Class C | 122 | 170 | 224 | 179 | 140 | 131 |
| Class D | 5 | 2 | 0 | 0 | ||
| Class E | ||||||
| Class F | ||||||
| Class G | ||||||
| Class H | ||||||
| Class I | ||||||
| Total | 373 | 338 | 516 | 616 |
*Proportion of Total Class C Interruptions not restored: (= a/b100/1)**
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 | |
|---|---|---|
| 174 | 224 | |
| 224 | 224 | |
| Proportion (%) | 77.68% | 100.00% |
Reliability Performance Measures (Schedule 1, Part 5)
Faults
| Faults per 100 circuit kilometres of prescribed voltage electric line | Nominal Voltage | Average Faults Targets 2002/06 | Faults Targets 2002 | Actual number of faults 2001 | 2000 | 1999 | 1998 |
|---|---|---|---|---|---|---|---|
| 60kV | 3.1 | 3.5 | 4 | 4 | 5 | 6 | |
| 33kV | |||||||
| 11kV | 6 | 7.5 | 7 | 6 | 6 | 8 | |
| Total | 7 | 6 | 8 | 6 |
Faults
| Faults per 100 circuit kilometres of underground prescribed voltage electric line | Nominal Voltage | Actual number of faults 2001 | 2000 | 1999 | 1998 | 1997 |
|---|---|---|---|---|---|---|
| 60kV | ||||||
| 33kV | 1 | 4 | 9 | 5 | 10 | |
| 11kV | 0 | 4 | 3 | |||
| Total | 1 | 4 | 9 | 5 | 10 |
Faults
| Faults per 100 circuit kilometres of overhead prescribed voltage electric line | Nominal Voltage | Actual number of faults 2001 | 2000 | 1999 | 1998 | 1997 |
|---|---|---|---|---|---|---|
| 60kV | 4 | 4 | 5 | 6 | 7 | |
| 33kV | 8 | 6 | 6 | 6 | 8 | |
| 11kV | 7 | 8 | 8 | 8 | 8 | |
| Total | 7 | 8 | 8 | 8 | 8 |
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Online Sources for this page:
VUW Te Waharoa —
NZ Gazette 2001, No 115
Gazette.govt.nz —
NZ Gazette 2001, No 115
β¨ LLM interpretation of page content
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Electricity System Reliability Statistics
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ποΈ Infrastructure & Public WorksElectricity, Interruptions, Faults, Performance Measures, Statistics