New Zealand Gazette – 1999 – No. 124

Page 2976

✨ Electricity Fault and Interruption Statistics

NEW ZEALAND GAZETTE

No. 124

Total number of faults per 100 circuit kilometres of prescribed voltage electric line together with a breakdown according to nominal line voltages

	1999	1998	1997	1996
33kV	2.7	2.2	4.3	2.9
22kV	5.8	3.2	4.8	3.6
11kV	9.3	9.7	7.6	7.8

Total number of faults per 100 circuit kilometres | 8.1 | 8.2 | 6.9 | 6.8 |

Total number of faults per 100 circuit kilometres of underground prescribed voltage electric line together with a breakdown according to nominal live voltages

	1999	1998	1997	1996
33kV	0	0	0	0
22kV	0	0	0	0
11kV	0	0	0	0

Total number of faults per 100 circuit kilometres | 0 | 0 | 0 | 0 |

Total number of faults per 100 circuit kilometres of overhead prescribed voltage electric lines

	1999	1998	1997	1996
33kV	2.7	2.2	4.3	2.9
22kV	5.8	3.2	4.8	3.6
11kV	9.3	9.7	7.6	7.8

Total number of faults per 100 circuit kilometres of overhead prescribed voltage electric lines | 8.1 | 8.2 | 6.9 | 6.8 |

INTERRUPTION INDICES

SAIDI

Class	Description	1999	1998	1997	1996
A	planned interruption by Transpower	64.8	0	0	25.9
B	being a planned interruption by the principal line owner (other than Transpower)	119.8	157.4	82.7	68
C	being an unplanned interruption originating within the works of the principal line owner, where those works are used for carrying out line business activities	220.8	295.6	113.4	82.6
D	being an unplanned interruption originating within the works of Transpower, where those works are used for carrying out line business activities	88.1	0	0	23.3
E	being an unplanned interruption originating within works used, by the principal line owner, for the generation of electricity	0	0	0	0
F	being an unplanned interruption originating within works used, by persons other than the principal line owner, for the generation of electricity	0	0	0	0
G	being an unplanned interruption caused by another line owner	0	0	0	0
H	being a planned interruption caused by another line owner	0	0	0	0
I	being an interruption not referred to in any of paragraphs (a) to (h)	0	0	0	0

Total number of Interruptions | 493.4 | 453 | 196 | 200 |

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VUW Te Waharoa — NZ Gazette 1999, No 124

NZLII — NZ Gazette 1999, No 124

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✨ LLM interpretation of page content

🏗️ Reliability Performance Measures for Electricity Interruptions (continued from previous page)

Domain🏗️ Infrastructure & Public Works
KeywordsElectricity, Faults, Interruptions, Reliability, Performance Measures, Statistics

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