A.動、靜接點(diǎn)安裝牢固,接點(diǎn)片不歪斜,無傷痕,磨耗不超過1/2 B.動接點(diǎn)在靜接點(diǎn)片內(nèi)接觸深度不小于4mm,用手扳動動接點(diǎn),其擺動量不大于2mm C.動接點(diǎn)打入靜接點(diǎn)片時,與靜接點(diǎn)座應(yīng)保持3mm以上間隙,接觸良好 D.啟動片落下前,動接點(diǎn)在靜接點(diǎn)內(nèi)竄動時,接點(diǎn)接觸深度不小于2mm
A.1 B.1.5 C.2 D.2.5
A.X1 B.X2 C.X3 D.X4