1. The component stacking place should be level and solid, and drainage work should be done around it. It is strictly forbidden to accumulate water and soak in the component stacking area;
2. The crane machine foundation must be 15cm higher than the natural ground, and it is strictly prohibited to soak the subgrade with rainwater;
3. It is not advisable to carry out lifting work on rainy days. On rainy days, the surface of the component and the hoisting rope are wetted, resulting in a reduction in the coefficient of friction between the rope and the component, and serious quality safety accidents such as component sliding may occur.
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