Electricity: electrothermally or thermally actuated switches – Electrothermally actuated switches – Fusible element actuated
Patent
1985-11-13
1987-02-03
Broome, Harold
Electricity: electrothermally or thermally actuated switches
Electrothermally actuated switches
Fusible element actuated
337266, H01H 8532
Patent
active
046411208
ABSTRACT:
A safety fuse assembly having a body of insulating material in which a fusible conductor extends embedded in a quenching medium between two electrical contacts. The assembly is provided with an electro-optical indicator connected in parallel with the fusible conductor via a high resistance circuit. To increase the fuse capacity of the safety fuse assembly, the circuit is formed as an electrically conductive, highly resistive thin layer having one or more tapping points and which acts as a voltage or current divider circuit. This makes it possible to maximize the internal volume of the fuse chamber, thereby enabling increases in the length of the fusible conductor and the amount of quenching material, whereby usage of the internal volume of the safety fuse assembly can be optimized.
REFERENCES:
patent: 4527143 (1985-07-01), Thienel
Bonfig Karl-Walter
Himmel Jorg
Kuipers Ulrich
Broome Harold
Parkhurst Todd S.
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