试题与答案

供电质量的法律要求是()。A、供电频率质量,以允许波动的偏差来衡量;  B、供电电压

题型:多项选择题

题目:

供电质量的法律要求是()。

A、供电频率质量,以允许波动的偏差来衡量; 

B、供电电压质量,以电压的闪变、偏离额定值的幅度和电压正弦波畸变程度来衡量; 

C、供电可靠性,以供电企业对用户停电的时间及次数来衡量; 

D、供电电流质量,以供电企业能否满足用户需求来衡量。 

答案:

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