In case of rain, snow and fog, when the wind force is more than several levels, the hoisting operation should be stopped.

In case of rain, snow and fog, the hoisting operation should be stopped when the wind force is greater than level 5.

1. Introduction to hoisting operation:

Hoisting refers to the installation and positioning of equipment with cranes or lifting mechanisms. During overhaul or maintenance, equipment, workpieces, appliances, materials, etc. It is hoisted by various lifting machines and tools to change their positions.

2. Requirements for hoisting operation:

(1) Ro-Ro method should be adopted for the loading and unloading of mobile equipment. The thickness of Ro-Ro rods should be consistent, and the annual length should be 50cm longer than the pallet width. It is forbidden to fill the rolling pin with gloves. When loading and unloading cars, the pipeline slope shall not be greater than 20, the raceway shall be flat and solid, the joints shall be staggered, the rolling speed shall not be too fast, and ropes shall be used if necessary.

(2) In the installation process, measures shall be taken in time when problems are found, and the hoisting shall be continued after treatment.

(3) When lifting large tower equipment with suspenders, multiple hoists must work together, and the lifting speed of each hoist must be roughly the same, so as to ensure that the stress at each lifting point of the tower tends to be roughly uniform and avoid the tower from being deformed due to uneven stress.

Lifting operation steps:

1. Upper discharge equipment:

After all the preparatory work is completed, the mobilization, arrangement and hoisting of the equipment will be organized again. Before the equipment is hoisted, it must be inspected and verified comprehensively and carefully. Check whether the equipment installation datum mark and azimuth line mark are correct; Check whether the lifting lug of the equipment meets the lifting requirements.

2. Connection of lifting rigging:

It mainly includes the lifting lug of pulley, the tension test and direction adjustment of electric hoist, the setting of traction and drag system, etc. Check and confirm before trial hoisting; The general hoisting commander shall disclose the hoisting operation; The main points and contents of arranging supervision positions; Lift and put it down for many times, so that all parts are coordinated and safe; Review the changes of each part, etc.

3, hoisting in place:

The commander-in-chief officially ordered the deputy commander to check the standby situation of each post and check whether the command signal system is normal; Each post reports the preparation situation and informs the podium in time with signals; When the equipment is 500-800 mm away from the temporary support, the equipment shall be officially hoisted and stopped, and further inspection shall be made. Each post should report whether the situation is normal; Remove equipment support and ground sundries, and continue lifting.