| 摘要 |
<p>PURPOSE:To perform a switching operation test before a disconnector is built into a tank and simplify mounting on/removing from the tank by removably installing a mounting board on an opening formed on the tank and installing a ground switch and the disconnector on an inner face of the mounting board as well as installing a controller on an outer face of the mounting board. CONSTITUTION:After a ground contact 35, a blade 42, a main circuit connecting contact 38 and a controller 44 are installed on a mounting board 43, a disconnector with a ground switch is tested outside a tank 28. That is, the ground contact 35, the blade 42, a disconnector fixing contact 31 and the controller 44 are installed on the mounting board 43 which is removably attached to a tank opening 29. Therefore the assembly of the disconnector with a ground switch and a switching operation test can be performed outside the tank before the above mentioned devices are built into the tank. Thus time required for assembly and test can be reduced as well as a working space inside the tank is not necessary and a size of the tank can be reduced.</p> |
