New Zealand Gazette – 2003 – No. 95

Page 2523

✨ Electricity Reliability Performance Measures

Reliability Performance Measures (Schedule 1, Part 5)

SAIDI

	Average			Actual SAIDI
	SAIDI Targets	SAIDI Targets
	2004/08	2004	2003	2002

SAIDI for total number of interruptions = a/b

where -

a = sum of interruption duration factors for all interruptions
b = Total consumers

| | | | 426.91 | 189.78 | 1,043.04 | 235.33 |

SAIDI Targets (=a/b)

| Planned Interruptions | Class B | 40 | 45 | | | |
| Unplanned Interruptions | Class C | 184 | 298 | | | |

where -
Planned Interruptions (pi)

a' = sum of interruption duration factors for all interruptions

| Class B | 993,200 | 1,128,600 | |

Unplanned Interruptions (ui)

| Class C | 4,563,754 | 7,473,840 |

b = Projected total consumers

| | 24,830 | 25,080 |

SAIDI for total number of interruptions within each interruption class (= a/b)

	2003	2002	2001	2000
Class A	23.27	0.00	1.27	1.68
Class B	58.95	75.39	24.12	47.95
Class C	265.54	111.98	642.95	183.43
Class D	61.16	1.91	374.71	2.28
Class E	0.00	0.00	0.00	0.00
Class F	0.00	0.00	0.00	0.00
Class G	0.00	0.00	0.00	0.00
Class H	0.00	0.00	0.00	0.00
Class I	0.00	0.00	0.00	0.00

SAIDI for total of interruptions

where -

a = sum of interruption duration factors for all interruptions within the particular interruption class

| | | 426.91 | 189.78 | 1,043.04 | 235.33 |

| Class A | | 557,769 | 0 | 32,862 | 39,732 |
| Class B | | 1,438,693 | 1,839,160 | 626,231 | 1,138,102 |
| Class C | | 7,213,915 | 2,861,194 | 16,590,867 | 4,346,118 |
| Class D | | 1,545,201 | 48,870 | 9,727,476 | 54,126 |
| Class E | | 0 | 0 | 0 | 0 |
| Class F | | 0 | 0 | 0 | 0 |
| Class G | | 0 | 0 | 0 | 0 |
| Class H | | 0 | 0 | 0 | 0 |
| Class I | | 0 | 0 | 0 | 0 |

b = Total consumers

| | 25,264 | 25,552 | 25,960 | 23,694 |

VUW Te Waharoa — NZ Gazette 2003, No 95

Gazette.govt.nz — NZ Gazette 2003, No 95

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✨ LLM interpretation of page content

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

Domain🏗️ Infrastructure & Public Works
KeywordsElectricity, Faults, Reliability, Performance Measures, SAIDI, Interruptions, Voltage, Circuit Kilometres

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