Engineers at Northern Ireland Electricity Networks (NIE Networks) are carrying out inspections to identify areas of the power network which need refurbished and upgraded.
Helicopter patrols are being carried out on over 2,500kms of the electricity network which will allow trained observers to identify and record any signs of damage on the lines and equipment that carry electricity.
Alex Houston, Lines & Cables Investment Engineer at NIE Networks said: "The power network in Northern Ireland has the highest ratio of rural overhead lines per customer in the UK, apart from the remote Scottish Highlands. We employ a helicopter as it is the quickest and most effective way of inspecting the lines and directing refurbishment crews to carry out further detailed checks and repairs.
"This work will help to improve the reliability and quality of service for our customers across Northern Ireland."
The patrols will continue until February 2017.
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