| 摘要 |
FIELD: electrical engineering. SUBSTANCE: fusible link with infusible tip and compensating spiral is disposed on axis of heat-resistant insulating tube. Infusible tip carries on its end heat-resistant alignment washer which encloses soldered joint. When heater shell temperature rises above permissible value, fusible link melts thereby opening electric circuit due to spreading of fusible link metal and/or compression of compensating spiral which is stretched in static position. EFFECT: enhanced safety in operation. 1 dwg |
