New Zealand Gazette – 2004 – No. 168

Page 4217

✨ Energy Reliability Statistics

Requirement 21

Disclosure of reliability performance measures

1 Total number of interruptions:

Network or generation owner	Interruption class	Classification of interruptions	2004	2003	2002	2001
Orion	B	Planned shutdowns	241	356	220	162
Orion	C	Unplanned cuts	403	611	404	499
Transpower	A	Planned shutdowns	4	0	0	0
Transpower	D	Unplanned cuts	8	4	2	3

Total interruptions | 656 | 971 | 626 | 664 |

Interruption classes E, F and G do not apply to the company and consequently results are all zero.

2 & 3 Interruption targets:

Network or generation owner	Interruption class	Classification of interruptions	2005	Average 2005 - 2009
Orion	B	Planned shutdowns	385	385
Orion	C	Unplanned cuts	555	555

4 Proportion of Class C interruptions not restored within:

(a) 3 hours 25%

(b) 24 hours 1%

5(a) Faults per 100 circuit-km of electric line:

Voltage	2004	2003	2002	2001
66kV	0.0	4.4	2.9	0.0
33kV	2.0	3.9	3.7	2.8
11kV	7.7	11.6	7.7	9.7
All	7.1	10.9	7.3	9.1

(b) & (c) Target number of faults per 100 circuit-km of electric line:

Voltage	2005	Average 2005 - 2009
66kV	2.0	2.0
33kV	4.0	4.0
11kV	12.0	12.0
All	11.2	11.2

VUW Te Waharoa — NZ Gazette 2004, No 168

Gazette.govt.nz — NZ Gazette 2004, No 168

Parliament House (depicted) was completed in 1918 and remains the primary seat of Parliament.

✨ LLM interpretation of page content

🏭 Disclosure of reliability performance measures (continued from previous page)

Domain🏭 Trade, Customs & Industry
KeywordsReliability performance, Interruptions, Faults, Electricity supply, Network statistics

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