(1)管口应*剌和尖锐楞角，管口宜做成喇叭形。

(1) the pipe mouth should be stabbed and sharp angle, the pipe mouth should be made of horn shape.

(2)电缆管在弯制后，不应有裂缝和显著的凹瘪现象，其弯扁程度不宜大于管子外径10%；电缆管的弯曲半径不应小于所穿入电缆的最小允许弯曲半径。

(2) after the bending of the cable pipe, there should be no cracks and significant concave and deflated phenomena. The degree of bending and flatting should not be greater than the outer diameter of the pipe 10%. The bending radius of the cable shall not be smaller than the minimum allowable bending radius of the cable inserted.

(3)金属管应在外表涂防腐漆或沥表，镀锌管锌层剥落处也应涂以防腐漆。

(3) the metal pipe should be coated with anticorrosion paint or leachmeter on the surface, and the zinc coating should also be coated with anticorrosion paint.