IL-114-300 equipment will be protected from lightning strikes

2025: Delivery of a batch of arresters for Il-114-300

Roselectronics of the State Corporation Rostec handed over to PJSC UAC a batch of arresters for the developed regional aircraft Il-114-300. The components will protect the aircraft's onboard equipment from lightning strikes and other powerful electromagnetic pulses. Roselectronics announced this on February 26, 2025.

An arrester is an element of an electrical circuit that is designed to combat overvoltage. In fact, the arrester is the weakest point in the electrical circuit, due to which it takes on an electric pulse, protecting expensive equipment from a short circuit. Modern arresters used in electronic equipment are based on semiconductors and metal-oxide varistors.

To protect the on-board electronics of the IL-114-300, uncontrolled R-86 arresters will be used, which are produced by the Plasma Research Institute of Gas Discharge Devices as part of Roselectronics. The devices can withstand a static voltage of 8 to 12 kilovolts, and a dynamic voltage of up to 20 kilovolts. This will allow maintaining the operability of the aircraft equipment at powerful electrical pulses, for example, lightning strikes and inductive lightning overvoltages.

One of the distinctive special arresters R-86 that the discharge develops along the device through the air, and not inside it, which makes it possible to significantly increase the life of the products and increase their reliability. The latter is extremely important in the case of using sensitive aircraft equipment. By the end of 2025, the company plans to transfer another batch of products to the customer, "said Sergei Maksimov, General Director of the Plasma Research Institute.