| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a gas-insulated safety enclosed switchgear capable of exhibiting the advantage of gas insulation by reducing the depth of the box. SOLUTION: A space P1 in the interphase direction of insulating bushings 7N, 7O, 7P provided parallel the top part of a box is made narrower than the width W of the head part 7a of the insulating bushings 7N, 7O, 7P. Therefore, the side surface of a trapezoidal part formed at the right side of the first phase insulating bushing 7N is opposed and mutually adjacent to the side surface of a trapezoidal part at the left side of the second phase insulating bushing 7O. The third insulating 7P to be provided at the rear of the second insulating bushing 7O is positioned in the same manner.</p> |
