我国国家电压等级标准是()。
A.3,6,10,35,(63),110,220,330,500,750kV; B.3.45,6.9,11.5,40.25,(72.45),126.5,253,363,550,825kV; C.3.15,6.3,10.5,37,(66),115,230,345,525,787.5kV; D.2.85,5.7,9.5,33.25,(60),104.5,209,313.5,475,712.5kV。正确答案A
我国国家电压等级标准是()。
A.3,6,10,35,(63),110,220,330,500,750kV; B.3.45,6.9,11.5,40.25,(72.45),126.5,253,363,550,825kV; C.3.15,6.3,10.5,37,(66),115,230,345,525,787.5kV; D.2.85,5.7,9.5,33.25,(60),104.5,209,313.5,475,712.5kV。正确答案A