| 摘要 |
PURPOSE:To execute an operating test from a low radioactivity area and to reduce a radioactivity exposure by using a U-shaped electrode, and also providing an operating test switch. CONSTITUTION:U-shaped electrodes 10, 11 are used, each one end is connected to a relay unit 4, and the other end is connected to an operating test swtich 12 provided in a containing case 5. By forming in this way, when the switch 12 is turned on, the electrodes 10, 11 are short-circuited and conduct, a unit 4 is electrified by a power source 8, an operation pilot lamp 7 is turned on, and the operation can be confirmed. When the switch 12 is turned off, a leakage can be monitored. In this way, the operating test from a low radioactivity area 6 can be executed without damaging a leakage monitoring function. Accordingly, exposure to radioactivity can be reduced. |
