Tuesday, 31 Jan 2023
AER investigation into unplanned power outage in Samail finds widespread issues

AER investigation into unplanned energy outage in Samail finds widespread concerns

A report published by AER states that management of MZEC not only permitted their security guidelines to be broken, they have been also content material to permit their employees to function without having the details necessary to do their job safely and effectively. The investigation concluded that MZEC management of the incident was ineffective and it didn’t seem to be concerned to avoid comparable outages in the future.

On Friday June 15, an unplanned outage occurred at Al Afiyah in Samail. During this outage 453 clients have been off provide from 6am by means of to 7.35pm with more than 2MW of load lost. By five.35pm (11.35 hours into the fault) 70 per cent of the load had been restored and at 7.35pm (13.35 hours into the fault) provide to all clients had been restored.

The investigation found a lack of clarity on the needs and application of the MZEC Electrical Safety Rules amongst MZEC employees and also a lack of encounter and understanding of consumer service concerns by these involved which resulted in the clients becoming off provide longer than ought to have been anticipated,” the investigation report stated.

“It is clear that the failures in the application of MZEC operational safety procedures are evident in this incident but it isn’t just a problem with those who dealt with the unplanned outage but generally there are widespread issues that MZEC should tackle,” AER mentioned.
AER added that the priority need to be for MZEC senior management to embrace the report suggestions and create a robust action strategy to make certain that they are implemented rigorously and without having delay in order to avoid a recurrence of this incident.

“MZEC has around 70 temporary 33kV Primary substations on its network like the one at Al Afiyah and should an unplanned outage occur on any one of these networks there is the possibility that the same outcome could become apparent.”

Investigations revealed that the methodology carried out on website ‘was unfortunately an example of worst practice’. “The operational engineer did not seem to be aware of the best way of restoring these supplies, which may well reflect a gap in his training and development.”

AER stated, “This incident was an example of how not to go about restoring supplies on an unplanned outage and it indicated many examples of poor practice and inconsistency in operation and some dangerous examples of operational work.”

MZEC has been offered 3 months to implement the suggestions by AER and to address failings that led to the deficiencies identified by the investigation.

Information Source: Muscat Daily

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