New Zealand Gazette – 1999 – No. 180

Page 4286

✨ Electricity Interruption Statistics

4286

NEW ZEALAND GAZETTE

No. 180

Year Ended Year Ended Year Ended Year Ended
31-Mar-99 31-Mar-98 31-Mar-97 31-Mar-96

2 Interruption targets for the following year
(a) Planned interruptions for the line owner - Class B 30
(b) Unplanned interruption targets originating within the works of
the line owner - Class C 60

3 Average interruption targets for the coming year and
subsequent 4 financial years
(a) Planned interruptions for the line owner - Class B 50
(b) Unplanned interruption targets originating within the works of
the line owner - Class C 50

4 The proportion of the total number class C, expressed as a %
(a) not restored within - 3 hours 26%
(b) not restored within - 24 hours 0

5 The total number of faults per 100 circuit kilometres of
prescribed voltage electric line
(a) Total faults per 100km 4.14 5.67 10.71 8.5
(b) The total number of faults targeted for the following financial year:
66kV 4.25
33kV 4
11kV 4
Total 4
(c) Average total number of faults for the coming year and
subsequent 4 financial years:
66kV 4.25
33kV 4
11kV 4
Total 4

6 Total number of faults per 100km of underground
prescribed voltage electric line
Nominal line Voltage:
66kV/50kV 0 0 0 0
33kV 0 0 0 0
11kV 3.7 0 3.53 18.2
Total faults per 100km 3.6 0 3.49 18

7 Total number of faults per 100km of overhead prescribed
voltage electric line
66kV/50kV 4.25 12.67 21.04 25.21
33kV 3.68 6.42 3.17 7.09
11kV 4.2 5.35 11.39 0
Total faults per 100km 4.14 5.67 10.7 8.34

8 The SAIDI for the total number of interruptions 244.4 384.22 435.9 835.42

9 SAIDI targets for the following financial year
(a) Planned Interruption by the line owner - Class B 90
(b) Unplanned Interruption originating from the works of the line
owner - Class C 110

10 Average SAIDI Interruption targets for the following
financial year and subsequent 4 financial years
(a) Planned Interruption by the line owner - Class B 80
(b) Unplanned Interruption originating from the works of the line
owner - Class C 100

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VUW Te Waharoa — NZ Gazette 1999, No 180

NZLII — NZ Gazette 1999, No 180

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🏗️ Westpower Limited Electricity Interruption and Fault Statistics (continued from previous page)

Domain🏗️ Infrastructure & Public Works
KeywordsElectricity, Interruption Targets, Fault Statistics, SAIDI, Performance Metrics

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