| 摘要 |
PROBLEM TO BE SOLVED: To prevent a solderless terminal for feeder cables of two circuits from being physically connected to a detector grounding device under a state in which a short-circuiting bar is connected between terminals connected to a grounding device of the detector grounding device. SOLUTION: A grounding unit 3 of a detector grounding device 1 has two electromagnetic contactors in correspondence with feeder cables of two circuits. An grounding cable 8 is connected to one contact point 3a of the grounding unit 3 through a grounding line connector terminal 6. A leading-in cable 9 of the feeder cable is connected to the other contact point 3b of the grounding unit 3 through the feeder cable connector terminal 7. When the detector grounding for the feeder cable of a single circuit is carried out, a short-circuiting bar 20 is connected between the feeder cable connector terminals 7, 7. The terminal part 22 of the short-circuiting bar 20 is connected to the feeder cable connector terminal 7 together with a solderless terminal 9a of the leading-in cable 9. A connecting part 23 of the short-circuiting bar 20 forms a protrusion piece 23b having its edge raised so as to prevent the solderless terminal 9a or the feeder cable connector terminal 7 from overlapping each other while the protrusion piece being protruded onto the connecting part 23. COPYRIGHT: (C)2009,JPO&INPIT
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