A.交流照明回路與直流控制回路共用一條電纜 B.直流控制回路與信號回路共用一條電纜 C.跳閘回路與合閘回路共用一條電纜 D.測量電流與保護電流共用一條電纜
A.-5%~5% B.-10%~10% C.-15%~10% D.-10%~5%
A.0.5mm2 B.1mm2 C.1.5mm2 D.2.5mm2