AUTOMATIC SWITCH FOR HITCH LINE OF INDOOR CRANE TYPE LOAD SWITCH

摘要

An ASS(Automatic Section Switch) for a defective section in an indoor crane-type load switch is provided to integratedly configure a cold current-type fuse portion or the fuse portion with an LA(Lighting Arrester) in compact size, thereby easily obtaining a space when being installed in a power board, and easily exchanging a fuse. An ASS comprises as follows. The first fixing contact(113) of the first insulator(112) and a mobile contact(115) of the second insulator(114) are installed at certain intervals on a frame(110). The second terminal(116) of the mobile contact(115) and one end of a protective metal pipe(117) are inserted into other side of the second insulator(114). At the back of the second insulator(114), the third insulator supporting other end of the metal pipe(117) is installed. A power fuse(200) and an LA are integratedly installed near to the frame(110) to the maximum.