New Zealand Gazette – 2006 – No. 143

Page 4147

✨ Electricity Reliability Statistics

20 NOVEMBER 2006 NEW ZEALAND GAZETTE, No. 143

4147

4 Fault Restoration Times (Class C) interruptions not restored within:

|           | 2006  | 2005  | 2004  | 2003  |
|----------------|-------|-------|-------|-------|
| 3 Hours   | 18.63% | 24.86% | 17.29% | 24.57% |
| 24 Hours  | 0.00% | 0.00% | 0.00% | 1.71% |

5 Number of faults per 100 km of prescribed voltage line

(a) Total number of faults

| Voltage   | 2006  | 2005  | 2004  | 2003  |
|------------|-------|-------|-------|-------|
| 66 kV     | 1.7   | 0.6   | 0.0   | 3.1   |
| 33 kV     | 1.0   | 2.8   | 3.5   | 1.3   |
| 22 kV     | 11.8  | 7.7   | 18.0  | 16.3  |
| 11 kV     | 8.4   | 7.3   | 8.1   | 14.0  |
| **Total** | **8.1**| **6.5**| **7.8**| **11.0**|

(b) Target for (next year)

| Voltage   | Target |
|------------|--------|
| 66 kV     | 1     |
| 33 kV     | 3     |
| 22 kV     | 8     |
| 11 kV     | 10        |
| **Total** | **6** |

| Voltage   | Target |
|------------|--------|
| 66 kV     | 1     |
| 33 kV     | 3     |
| 22 kV     | 8     |
| 11 kV     | 10        |
| **Total** | **6** |

6 The total number of faults per 100km of prescribed voltage underground line

| Voltage   | 2006  | 2005  | 2004  | 2003  |
|------------|-------|-------|-------|-------|
| 66 kV     | 0     | 0     | 0     | 0     |
| 33 kV     | 0     | 0     | 0     | 0     |
| 22 kV     | 0     | 0     | 0     | 0     |
| 11 kV     | 1.9   | 1.0   | 3.2   | 2.2   |
| **Total** | **1.7**| **0.9**| **1.0**| **0.7**|

7 The total number of faults per 100km of prescribed voltage overhead line

| Voltage   | 2006  | 2005  | 2004  | 2003  |
|------------|-------|-------|-------|-------|
| 66 kV     | 1.7   | 0.6   | 0.0   | 3.2   |
| 33 kV     | 1.0   | 2.9   | 3.6   | 1.4   |
| 22 kV     | 11.8  | 8.5   | 18.2  | 16.4  |
| 11 kV     | 8.4   | 9.0   | 8.5   | 14.7  |
| **Total** | **8.1**| **7.7**| **8.7**| **12.2**|

8 SAIDI for the total number of interruptions

| 2006      | 2005      | 2004      | 2003      |
|-----------|------------|------------|------------|
| 150.20    | 132.69    | 198.63    | 318.86    |

9 SAIDI targets (next year)

Class B - Planned by Line Owner: 93
Class C - Unplanned by Line Owner: 57

VUW Te Waharoa — NZ Gazette 2006, No 143

Gazette.govt.nz — NZ Gazette 2006, No 143

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✨ LLM interpretation of page content

🏭 Reliability Performance Measures (continued from previous page)

Domain🏭 Trade, Customs & Industry
KeywordsReliability, Fault Restoration Times, Class C, Faults per 100 km, Voltage Lines, SAIDI

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