β¨ Reliability Performance Measures
22 MAY
NEW ZEALAND GAZETTE
1411
3.3 RELIABILITY PERFORMANCE MEASURES
For the 12 months ended 31 December 2001
Schedule 1 β PART 4
Unplanned Interruptions in Distribution Systems
a) The measure of unplanned interruptions (other than those directly resulting from unplanned interruptions of a transmission system) calculated by the formula a/b where:
a = the sum obtained by adding together the number of customer-hours lost during each interruption; and
b = the total number of customers being supplied by means of the system.
| System | Unplanned interruption measure (within distribution system) Jan01-Dec01 | Apr00-Dec00 |
|---|---|---|
| Alfriston | - | 0.3333 |
| Ashhurst | # | 0.0078 |
| Auckland Central | 0.0013 | 0.0013 |
| Bruce McLaren | - | - |
| Dannevirke | # | - |
| Drury | 0.0167 | - |
| Feilding | # | 0.0009 |
| Foxton | # | - |
| Hastings | # | 0.0006 |
| Hunua | - | - |
| Kakariki | # | - |
| Kairanga | # | - |
| Kingseat | - | - |
| Levin | # | 0.0007 |
| Longburn | # | - |
| Mangatainoka | # | - |
| Oroua Downs | # | - |
| Pahiatua | # | - |
| Palmerston North | # | 0.0022 |
| Pukekohe | - | - |
| Ramarama | - | - |
| Takapau | - | - |
| Tuakau | - | - |
| Waiuku | - | - |
| Wellington | 0.0105 | 0.0053 |
On systems where the number of customers affected has been recorded, the duration of each interruption is not recorded and the local engineer has estimated the average length of the interruptions.
Data indicated by # has been amalgamated into the Wellington system.
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Online Sources for this page:
VUW Te Waharoa —
NZ Gazette 2002, No 51
Gazette.govt.nz —
NZ Gazette 2002, No 51
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π
Energy Delivery Efficiency Performance Measures and Statistics
(continued from previous page)
π Trade, Customs & IndustryEnergy Efficiency, Gas Systems, Performance Measures, Statistics, Gas Conveyance, Customer Counts, Reliability, Interruptions