Network operator TenneT deployed a helicopter today to check the high-voltage lines in the southern part of the province. It is the first time that the company has carried out an inspection in this way.
At a height of less than fifty meters, a helicopter flies from mast to mast between Hoogeveen and Hardenberg in Overijssels. In the near future, six high-voltage connections in the provinces of Groningen, Drenthe and Overijssel will be inspected in this way. “The helicopter is equipped with special cameras and sensors,” says Mark de Weerd from TenneT. “We use this to take photos and scans of the connections. It provides us with detailed information, which allows us to plan our management and maintenance more efficiently.”
Previously, TenneT always carried out inspections from the ground. De Weerd: “Then people went to the high-voltage cables to check them manually.” ‘That can be done more effectively’ was the thought of the grid operator, where the shortage of technical manpower is increasing. The solution was found abroad. Helicopters have been used for these types of inspections in mountainous areas for years. “Thanks to this new method, we can deploy our employees on other important projects,” De Weerd explains.
Residents living near the high-voltage pylons received a letter with an explanation and advice to keep animals indoors. “This is to prevent any unrest among animals,” says De Weerd. “There is noise for a very short period of time. We think the nuisance is not too bad.”
If the results of the test turn out well, TenneT plans to also use helicopters in the rest of the Netherlands.