FIELD: power engineering. SUBSTANCE: device has sensing element mounted in case on knife-edge support and kinematically coupled with displacement-to-electric-signal converter incorporating encoding device and associated reader. Sensing element is made in the form of vibrating crosspiece whose smaller arm is linked with line conductor under check and larger arm is connected to encoding device of converter through mechanical digitizer made in the form of sections converting critical values of nonlinearly varying ice loads into linear displacement of encoding device of converter at preset quantization step and checking section made in the form of rocking lever mounted on its case. EFFECT: enlarged measurement range, enhanced reliability of information. 9 dwg
