| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a shutter apparatus of a distribution board which is excellent in heat radiation of a main circuit disconnection part and effectively prevents electric shock in inspection work and the like. <P>SOLUTION: A fixing frame 1, which houses a drawer type switch 2 and has a main circuit disconnection part 4 at a rear wall 1a, is divided into a switchgear room 6 and a main circuit disconnection part room 7 by an insulation barrier 5, and through windows 5a, through which upper and lower terminals 3a and 3b of the switch 2 penetrate, are formed at the insulation barrier 5. Shutters 8, which move up or down to open or close the through windows 5a, are provided at the main circuit disconnection part room 7 side of the insulation barrier 5. Further, a shutter driving mechanism is provided to move the shutters 8 in conjunction with the movement of the switch 2 between a pull-out position and a connection position. Specifically, the shutter driving mechanism closes the shutters 8 when the switch 2 is in the pull-out position and opens the shutters 8 when the switch 2 is in the connection position. <P>COPYRIGHT: (C)2012,JPO&INPIT |
