Is used for oil heating in the engine tank to the t° 303 K (30°C) under low of the environment. It is of high mechanical strength (up to 30 g) and heat resistance (under the t° up to 10 PC doesn’t lose thermo stability and doesn’t afford oil leakage).  Two oil electric heaters 7054 provide the heating of 80 l oil in the engine tank “D-27” from -60°C up to +30°C for 40 minutes.