EDF Energy operates eight nuclear power stations in the UK, which provide power to approximately a quarter of the country's population.

Chris Stewart works in the System Health department at Torness Power Station, and kindly put together the following text and photos on how they use HAWK Inspection Windows to carry out infrared surveys.

"We use the HAWK Windows to monitor the temperature of our 23.5 kV generator flex connections, which are basically copper braids that connect the generator terminals to the outgoing bus bars, as well as the internal temperature of the duct they sit in."

"We had a situation where we wanted to fit some capacitor couplers inside the duct as part of a condition monitoring programme. An infrared survey of the duct's external temperatures was carried out, as the capacitor had a max temperature rating of 80°C."

"This survey revealed temperatures that were close to the maximum operation limit of the capacitors, so a decision was made to fit HAWK Windows to the access hatch to get an accurate picture of the internal temperatures and spot any overheating."