(219) The weather conditions that the tower crane on the construction site must stop working are ().

P226. In case of severe weather such as gale, heavy rain, fog, etc. of level 6 and above, the operation should be stopped and the hook should be raised. Walking tower crane should be clamped with rail tongs. After the rain and snow, the operation can only be carried out after trial hoisting and confirming that the brake is sensitive and reliable.