New Zealand Gazette – 1997 – No. 131

Page 3058

✨ Electricity Reliability Performance Measures

3058 NEW ZEALAND GAZETTE No. 131

Disclosure of reliability performance measures pursuant to regulation 16 of the Electricity (Information Disclosure) Regulations 1994

Total number of interruptions, together with a breakdown of that total according to interruption class

	1997	1996	1995
Classes A, E-G	0	0	0
Class B	181	227	260
Class C	393	325	459
Class D	0	3	0
TOTAL	574	555	719

Total number of faults per 100 circuit kilometres of prescribed voltage electric line

33.70 (1996 - 32.77) (1995 - 50.64)

The total number of faults per 100 circuit kilometres of underground prescribed voltage electric line, together with a breakdown of that total according to different line voltages

	1996	1995
33kV	0	0
11kV	12.5	6.93
Overall	10.0	4.69

The total number of faults per 100 circuit kilometres of overhead prescribed voltage electric line, together with a breakdown of that total according to different line voltages

	1997	1996	1995
33kV	5.56	7.64	3.36
11kV	38.41	37.52	59.40
Overall	34.28	33.10	51.44

The SAIDI for the total of interruptions is calculated in accordance with the following formula:

$$
\frac{a}{b}
$$

Where:

a is the sum obtained by adding together the interruption duration factors for all interruptions

b is the total customers

213.18 (1996 - 333.66) (1995 - 250.91)

The SAIDI for the total of interruptions within each interruption class is calculated in accordance with the following formula:

$$
\frac{a}{b}
$$

Where:

a is the sum obtained by adding together the interruption duration factors for all interruptions within the particular

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VUW Te Waharoa — NZ Gazette 1997, No 131

NZLII — NZ Gazette 1997, No 131

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✨ LLM interpretation of page content

🏭 Disclosure of reliability performance measures pursuant to regulation 16 of the Electricity (Information Disclosure) Regulations 1994 (continued from previous page)

Domain🏭 Trade, Customs & Industry
KeywordsElectricity, Reliability Performance, Interruptions, Faults, SAIDI, Regulations

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