| 摘要 |
PURPOSE: A safety cover device is provided to allow for ease of opening/shutting operation of circuit breaker, while eliminating the possibility of loss of bolt. CONSTITUTION: An iron power distribution board comprises a case, and a door(2) mounted on a front door frame(4) of the case. The case accommodates an internal plate(3), and an internal unit(5) is attached to the internal plate. A safety cover(11) for protecting the internal unit is mounted on the front surface of the internal unit. A hinge bracket(12) is fixed at one side of the internal plate, and a hinge piece(13) is fixed at the hinge bracket. A link is coupled to the hinge piece, and safety cover has one side coupled to the link through a pin. The safety cover is rotatable centering from the pin. A support bracket(17) with a support piece(18) is fixed at the other side of the internal plate.
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