FIELD: electrical engineering; automobile industry. SUBSTANCE: insulator is made in the form of cylinder with two through holes and slot on one of its ends; slot volume equals external volume of spiral. Slot is used for locking spiral to ensure tight assembly of set of insulators. Cylinder length is 10- 50 mm. Insulator is made of glass ceramic. EFFECT: improved thermal capacity and operating reliability of insulator. 2 dwg
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