New Zealand Gazette – 1997 – No. 114

Page 2673

✨ Electricity Reliability Performance Measures

2 SEPTEMBER NEW ZEALAND GAZETTE 2673

MAINPOWER NEW ZEALAND LTD

DISCLOSURE RELIABILITY PERFORMANCE MEASURES TO BE
DISCLOSED BY LINE OWNERS (OTHER THAN TRANS POWER)
PURSUANT TO REGULATION 16 AND PART IV OF THE FIRST
SCHEDULE OF THE ELECTRICITY (INFORMATION DISCLOSURE)
REGULATIONS 1994
For The Year Ended 31 March 1997

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

Interruption Class	Number of Interruptions
	1997	1996	1995
MainPower	Planned Shut-Down (Class B)	194	220
	Unplanned Interruption (Class C)	552	437
Trans Power	Planned Shut-Down (Class A)	1	1
	Unplanned Interruption (Class D)	7	-
Generation ECNZ	Unplanned Interruption (Class E)	-	-
Generation Other	Unplanned Interruption (Class F)	-	-
Other	Other Interruptions (Class G)	-	-
	Unplanned Interruption (Class G)	-	-
Total	Interruptions	754	658

The total number of faults per 100 circuit kilometres of prescribed voltage electric line.

16.54 Faults 13.29 Faults 11.92 Faults

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 nominal line voltages.

Nominal Voltage	Faults per 100 km
	1997	1996	1995
33 kV	48.85	-	93.02
11 kV	10.66	6.97	4.69
TOTAL	11.68	6.77	7.56

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 nominal line voltages.

Nominal Voltage	Faults per 100 km
	1997	1996	1995
33 kV	6.98	3.63	7.70
11 kV	17.37	14.11	12.26
TOTAL	16.60	13.32	11.92

The SAIDI for the total of interruptions: 281.85 415.58 351.33

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VUW Te Waharoa — NZ Gazette 1997, No 114

NZLII — NZ Gazette 1997, No 114

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✨ LLM interpretation of page content

🏭 Disclosure of Reliability Performance Measures and Statistics (continued from previous page)

Domain🏭 Trade, Customs & Industry
KeywordsReliability, Electricity Distribution, Performance Measures, Statistics, Mainpower New Zealand Ltd

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