FIELD: high-voltage circuit-opening devices. SUBSTANCE: case accommodates contact strip built integral with blow-out coil whose turn-to-turn insulation is made of composite material produced, for example, like case by winding binder impregnated thread. Blow-out coil is noted for reduced size and mass, high strength and dynamic stability, simplified design. EFFECT: reduced resistance of system, reduced mass and size, facilitated manufacture of arc- control device. 2 cl, 1 dwg
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