A.380/220VB.10KVC.5~110KVD.110~220KV
A.橡膠絕緣電力電纜B.阻燃聚氯-乙烯絕緣電力電纜C.塑料絕緣電力電纜D.油浸紙絕緣
A.圖形符號(hào)B.數(shù)字符號(hào)C.項(xiàng)目代號(hào)D.基本文字符號(hào)