β¨ Reliability Performance Measures
4620
NEW ZEALAND GAZETTE, No. 158
29 NOVEMBER 2006
Reliability Performance Measures (Requirement 21)
| Interruptions | Average Interruption Targets | Interruption Targets | Actual Interruptions | |||
|---|---|---|---|---|---|---|
| 2007/2011 | 2007 | 2006 | 2005 | |||
| Planned interruptions | Class A | 72 | 72 | 1 | 0 | 1 |
| Class B | 89 | 89 | 123 | 115 | 130 | |
| Unplanned Interruptions | Class C | 130 | 130 | 231 | 235 | 247 |
| Class D | 3 | 2 | 2 | |||
| Class E | 0 | 0 | 0 | |||
| Class F | 0 | 0 | 0 | |||
| Class G | 0 | 0 | 1 | |||
| Class H | 0 | 0 | 0 | |||
| Class I | 2 | 0 | 0 | |||
| Total | 326 | 360 | 386 |
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 | ||||
|---|---|---|---|---|---|
| 148 | 1 | ||||
| 231 | 231 | ||||
| 64.07% | 0.43% |
Faults
| Average Faults Targets | Faults Targets | Actual number of faults | |||||
|---|---|---|---|---|---|---|---|
| Faults per 100 circuit kilometres of prescribed voltage electric line | Nominal Voltage | 2007/10 | 2007 | 2006 | 2005 | 2004 | 2003 |
| 50kV | 3 | 3 | 4 | 2 | 2 | 3 | |
| 33kV | 5 | 6 | 9 | 3 | 6 | 11 | |
| 11kV | 7 | 7 | 7 | 8 | 8 | 8 | |
| Total | 5.8 | 5.9 | 7 | 7 | 8 | 12 |
Faults
| Actual number of faults | ||||
|---|---|---|---|---|
| Faults per 100 circuit kilometres of underground prescribed voltage electric line | Nominal Voltage | 2006 | 2005 | 2004 |
| 50kV | 0 | 0 | ||
| 33kV | 0 | 0 | ||
| 11kV | 5 | 8 | 4 | 5 |
| Total | 5 | 8 | 4 | 5 |
Faults
| Actual number of faults | ||||
|---|---|---|---|---|
| Faults per 100 circuit kilometres of overhead prescribed voltage electric line | Nominal Voltage | 2006 | 2005 | 2004 |
| 50kV | 3 | 2 | 2 | 3 |
| 33kV | 9 | 3 | 6 | 11 |
| 11kV | 8 | 8 | 8 | 7 |
| Total | 7 | 7 | 9 | 12 |
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Online Sources for this page:
VUW Te Waharoa —
NZ Gazette 2006, No 158
Gazette.govt.nz —
NZ Gazette 2006, No 158
β¨ LLM interpretation of page content
π
Reliability Performance Measures for Eastland Network Limited
(continued from previous page)
π Trade, Customs & IndustryInterruptions, Faults, Performance targets, Electricity delivery, Efficiency