| 摘要 |
PROBLEM TO BE SOLVED: To provide a field apparatus which can be turned on/off in power supply at the upper side of a power supply line apart form the field apparatus, and allows turning-on and off of the power supply to be viewed or confirmed. SOLUTION: The field apparatus comprises, at least a power supply terminal base which connects power cables contained in a field apparatus case; a cable entry part, arranged at a part of the field apparatus case and inserted with the power cables; and a cable ground which is arranged outside the field apparatus case and at a position closest to the cable entry part, and guides the power cables. A switching means for short-circuiting or releasing the power cables is arranged at a proper position for guiding the power cables of the cable ground. COPYRIGHT: (C)2008,JPO&INPIT
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