1. The operator of the chimney ring gondolas must be trained and obtain a valid certificate after passing the examination. The gondola must be operated by designated personnel, and it is strictly prohibited to operate the gondola without the permission of trained personnel or supervisors. 2. Workers wear safety helmets and safety belts when working. 3. Operators are not allowed to work when they are drunk, overly fatigued and emotionally abnormal. 4. The double-lifting gondola must be operated by two people, and it is strictly forbidden to lift up by one person. 5. Operators are not allowed to wear hard-soled shoes, plastic-soled shoes, slippers or other slippery shoes for work. It is strictly forbidden to use ladders, slings, shelves and other climbing tools in the suspended platform during operation, and to set up additional lifting tools outside the suspended platform. Tools for operations. 6. Operators must get in and out of the gondola on the ground. They are not allowed to go in and out of the gondola in the air by climbing windows. It is strictly forbidden to climb from one suspended platform to another suspended platform while in the sky.