HIGH-VOLTAGE FUSE Russian patent published in 1997 - IPC

FIELD: electric engineering. SUBSTANCE: device has dielectric core which is covered with fusion element which has contact terminals. In addition device has outer electric insulation housing. Fusion element is made from heavy-melting alloy. Core and outer electric insulation housing are made from heat-proof mica plastic and are pressed to each other so that they cover fusion element. Device may be connected to high-voltage circuit of high-voltage electric heater and be mounted directly in its housing. EFFECT: possibility to operate under temperature up to 1000 C in temperature range of 20 - 100 C. 2 dwg