20130123 毎日一題
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単台交流エレベーターの供給導体の連続動作時の定格電流の選定:( )。A. メーカー表示の連続動作定格電流の1.1倍以上でなければならないB. メーカー表示の連続動作定格電流の1.25倍以上でなければならない
C. メーカー表示の連続動作定格電流の1.5倍以上でなければならない
D. メーカー表示の0.5時間(または1時間)動作定格電流の0.9倍
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