Page 3030 - Week 08 - Thursday, 17 August 2017
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(3) Which Gungahlin suburbs were affected by power outages and the (a) dates each suburb lost power and (b) time period of each outage.
(4) What has been the cause of the outages.
(5) What is being done to ensure Gungahlin residents have access to a reliable source of electricity.
Mr Barr: The answer to the member’s question is as follows:
(1) ActewAGL has provided advice to the Government as and when requested.
(2) 6 June 2017.
(3) & (4) The Gungahlin suburbs affected by power outages, the dates each suburb lost power, the time period of each outage and the cause of the outages are listed in the table below.
|
Date |
Duration of Interruption* |
Suburbs Impacted |
Cause |
|
08/05/17 |
165 minutes |
Amaroo, Bonner, Jacka, Moncrieff, Ngunnawal |
Fault in HV switch gear |
|
15/05/17 |
120 minutes |
Amaroo, Bonner, Jacka, Moncrieff, Ngunnawal |
Network Protection Setting Operation |
|
17/05/17 |
104 minutes |
Gungahlin, Ngunnawal |
Third Party damage |
|
24/05/17 |
119 minutes |
Bonner, Forde, Gungahlin, Ngunnawal, Jacka, Amaroo |
Network Protection Setting Operation |
|
01/06/17 |
72 minutes |
Franklin, Gungahlin, Mitchell, Ngunnawal & Palmerston |
HV Cable fault |
|
02/06/17 |
110 minutes |
Gungahlin, Harrison, Kenny, Kinlyside, Mitchell |
HV Cable Fault |
* Please note duration of interruption represents the longest period any customer was off supply. Customers are normally restored in a staggered manner as fault location work progresses.
(5) ActewAGL Distribution have made immediate changes to reduce the chance of further unplanned interruptions including:
• Repair of the faulted cables;
• To minimise potential load imbalances during the winter peak period planned upgrade works within the area have been suspended until the lower demand period normally experienced in Spring. This includes a protection system upgrade, intended to improve reliability through improved fault location, reducing the duration of interruptions;
• Feeder extension work planned to manage future growth in the Gungahlin area has been brought forward by two years with work now to commence this calendar year. ActewAGL Distribution is also investigating additional feeder augmentation to further secure supply into the future for the area.
• Reviewing our maintenance program and how it relates to these incidents in addition to normal maintenance efficacy reviews.
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