H - Electricity – 02 – H
Patent
H - Electricity
02
H
H02H 7/20 (2006.01) H01H 33/59 (2006.01) H01H 83/10 (2006.01) H01H 83/20 (2006.01) H01H 85/44 (2006.01) H01T 1/14 (2006.01) H01T 4/08 (2006.01) H02H 3/22 (2006.01)
Patent
CA 2051564
A junction box, for connecting communication lines to an electronic device, protects the electronic device as well as the communication lines from alightning surge, overvoltage, and/or overcurrent. The junction box includes a first pair of sockets for connecting to the communication lines, a second pair of sockets for connecting to the electronic device, a pair of lines connecting the first pair of sockets to the second pair of sockets, and at least one combination of a surge- absorbing element and an associated low-melting-point wire connected in direct thermal contact with a surface of the surge-absorbing element. The surge- absorbing element heats up if the voltage or current across it becomes too high, and that heat melts the associated low-melting-point wire which forms a portion of the pair of lines.
Kumano Keisuke
Kurasawa Koichi
Tanaka Yoshiyuki
G. Ronald Bell & Associates
Mitsubishi Materials Corporation
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