What rules should be observed in jacking joint of tower crane?

First of all, the current weather, the wind must not exceed four, including four. (Jacking tower with inner jacket is level 5);

Secondly, if the height of the jacked tower crane exceeds the elevation, it must be attached to the wall;

Third, choose a professional installation team who knows the jacking operation process to carry out jacking work;

Fourth, the added standard section should meet the tower crane standard;

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