New Zealand Gazette – 1999 – No. 138

Page 3337

✨ Reliability Performance Measures

4 OCTOBER

NEW ZEALAND GAZETTE

Reliability Performance Measures

1 Number of interruption by class

Class	Description	1999	1998	1997	1996
		number of interruptions
A	Transpower Planned	0	0	0	1
B	ML Ltd Planned	156	155	109	132
C	ML Ltd Unplanned	133	155	157	180
D	Transpower Unplanned	1	2	3	2
E	ECNZ Unplanned	0	0	0	0
F	Other Generation	0	0	0	0
G	Unplanned	0	0	0	0
	Total	290	312	269	315

2 Interruption Targets for the following financial year

Class	Description	2000
		number of interruptions
(a)	B ML Ltd Planned	144
(b)	C ML Ltd Unplanned	156

3 Average interruption targets for the subsequent four years

Class	Description	2001	2002	2003	2004
		number of interruptions
(a)	B ML Ltd Planned	126	140	148	146
(b)	C ML Ltd Unplanned	156	155	144	150

4 Percentage of Class C interruptions not restored within-

Description	1999
(a) Three hours	% of total class interruptions
	23.3%
(b) 24 hours	1.5%

5 Faults (Class C) per 100 kilometres

(a) Total number of faults per 100 km

Voltage	1999	1998	1997	1996
33 kV	2.7	1.5	4.2	0.0
11kV	6.0	2.3	7.9	9.4
6.6kV	0.0	5.9	3.9	0.0

(b) Total number of faults per 100 km following year

Voltage	2000
33 kV	1.2
11kV	7.3
6.6kV	0.0

Voltage	2001	2002	2003	2004
33 kV	1.5	1.9	2.3	1.5
11kV	7.1	6.9	6.2	6.4
6.6kV	2.0	0.0	0.0	0.0

6 Faults (Class C) per 100 kilometres underground

Voltage	1999	1998	1997	1996
33 kV	0.0	0.0	3.0	0.0
11kV	3.0	3.1	9.8	8.1

7 Faults (Class C) per 100 kilometres overhead

Voltage	1999	1998	1997	1996
33 kV	2.7	2.3	2.0	0.0
11kV	6.1	7.3	7.9	9.4
6.6kV	0.0	0.0	3.9	0.0

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VUW Te Waharoa — NZ Gazette 1999, No 138

NZLII — NZ Gazette 1999, No 138

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✨ LLM interpretation of page content

🏭 Reliability Performance Measures

Domain🏭 Trade, Customs & Industry
KeywordsPerformance Measures, Electricity, Interruptions, Faults, Statistics

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