Electricity Fault and Reliability Statistics




Fault Targets per 100 Circuit Kilometre

Number of faults targeted (next year)

2008 2007 2006 2005
33kV 2.6 2.6 2.6 2.6
11kV 9.5 9.5 9.5 9.5
Total 8.5 8.5 8.5 8.5

Average Faults Targets (next and subsequent 4 years)

2008/12 2007/11 2006/10 2005/09
33kV 2.6 2.6 2.6 2.6
11kV 9.5 9.5 9.5 9.5
Total 8.5 8.5 8.5 8.5

Number of Faults per 100 Circuit Kilometre

2007 2006 2005 2004
Overhead
33kV 1.30 0.66 0.66 7.19
11kV 8.40 9.84 9.60 11.70
Total Overhead 7.20 8.44 8.24 11.01

| Underground | | | | |
| 33kV | 5.10 | 7.70 | - | 3.78 |
| 11kV | - | - | 2.65 | - |
| Total Underground | 4.60 | 7.01 | 2.38 | 3.40 |

| Total | 6.90 | 8.19 | 7.23 | 9.7 |

SAIDI

2007 2006 2005 2004
Class A – Planned by Transpower - - - -
Class B – Planned by Electra 18.09 17.56 15.23 9.88
Class C – Unplanned by Electra 69.67 51.43 62.97 107.86
Class D – Unplanned by Transpower 97.50 25.00 5.66 15.63
Class E – Unplanned by embedded generation - - - -
Class F – Unplanned by generation on other network - - - -
Class G – Unplanned by other line owner - - - -
Class H – Planned by other line owner - - - -
Class I – Any other loss of supply - - - -
Total 185.26 93.99 83.86 133.47

SAIDI targets (next year)

2008 2007 2006 2005
Class B – Planned 16 16 16 20
Class C – Unplanned 62 62 62 80
Total 78 78 78 100


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Online Sources for this page:

VUW Te Waharoa PDF NZ Gazette 2008, No 30


Gazette.govt.nz PDF NZ Gazette 2008, No 30





✨ LLM interpretation of page content

🏭 Reliability Performance Measure Targets (continued from previous page)

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Electricity, Reliability, Interruptions, Targets, Performance Measures, Faults