△U％=1.81％<5％，满足要求。
A.4 B.6 C.10 D.16
A.聚乙烯 B.聚氯乙烯绝缘层 C.聚氯乙烯内保护层 D.阻燃
A.1.77U0 B.1.5U0 C.1.45U0 D.1.35U0
A.应 B.宜 C.必须 D.不应
A.2.5 B.4 C.6 D.10
A.16 B.25 C.35 D.50
A.6860N/cm2 B.8820N/cm2 C.12270N/cm2 D.13720N/cm2
A.15° B.20° C.25° D.30°
A.交联聚乙烯电缆 B.聚氯乙烯电缆 C.矿物绝缘电缆 D.聚乙烯电缆
