The following terms and definitions apply to this document. 4.5 The personnel entering the job site should wear the safety helmet that meets the requirements of GB2811 correctly. When working, the workers should abide by the safety technical operation rules of this type of work, dress and wear the corresponding personal protective equipment correctly according to the regulations, and the multi-type work and multi-level crossover operation should be unified and coordinated.

operators of special operations and special equipment should hold relevant certificates. People with occupational contraindication should not take part in the corresponding homework.

note: occupational contraindication is based on GBZ/T157—29.

the operation supervisor should stick to his post. If it is really necessary to leave, there should be someone to replace the supervisor. 4.6 Before the operation, the operation unit shall go through the operation examination and approval procedures and have the signature of the relevant responsible person for confirmation.

when the same operation involves two or more of hot work, confined space entry, blind plate plugging, high-altitude operation, hoisting, temporary power consumption, ground breaking and circuit breaking, the corresponding operation approval procedures shall be handled in addition to the corresponding operation requirements.

during operation, the examination and approval procedures should be complete, all safety measures should be implemented, and the working environment should meet the safety requirements. See Appendix A and Appendix B for the relevant contents of the operation approval procedures. 4.7 When the production device is abnormal, which may endanger the safety of the operators, the production unit shall immediately notify the operators to stop the operation and evacuate quickly.

when an abnormality occurs in the job site, which may endanger the safety of the operators, the operators should stop the operation and evacuate quickly, and the operation unit should immediately notify the production unit. 5.1.1 Hot work outside the fixed hot work area is generally divided into three levels: secondary hot work, primary hot work and special hot work. In case of festivals, holidays or other special circumstances, hot work should be upgraded and managed.

note: the enterprise shall designate a fixed hot work area and a no-fire area. 5.1.2 Secondary hot work: hot work other than special hot work and primary hot work. Where all production devices or systems are shut down, after the devices have passed the cleaning, replacement and analysis, and safety isolation measures have been taken, the hot work can be managed according to the level of fire and explosion risk and approved by the safety management department of the unit. 5.1.3 Grade I hot work: hot work except special hot work in inflammable and explosive places. The hot work on the pipe gallery in the factory area is managed according to the first-class hot work. 5.1.4 Special hot work: the hot work carried out on inflammable and explosive production devices, pipelines, storage tanks, containers and other special dangerous places in the production and operation state, and the hot work without replacement under pressure shall be managed as special hot work. 8.1.1 The working height h is divided into four sections: 2m ≤h≤5m; 5m < h≤15m; 15m < h≤3m; h> 3m。

8.1.2 There are 11 kinds of objective risk factors that directly cause falling: a) gust wind force is above Grade 5 (wind speed is 8.m/s); B) high-temperature operation of Grade II or above specified in GB/T 42; C) Working environment with average temperature equal to or lower than 5℃; D) Operation with contact cold water temperature equal to or lower than 12℃; E) There are slippery objects such as ice, snow, frost, water and oil in the operation site; F) Insufficient light or poor visibility in the workplace; G) The distance between the working range and the charged body of dangerous voltage is less than that specified in Table 1; H) Swing, the foothold is not flat or only a small plane, that is, a rectangular plane with either side less than 5mm, a circular plane with a diameter less than 5 mm or a plane with other shapes of similar size, so that the operator cannot maintain the normal posture; I) the physical labor intensity of Grade III or above specified i) GB3869; J) Working environment with toxic gas or air with oxygen content lower than 19.5%; K) Working environment that may cause various disasters and accidents and rescue all kinds of disasters and accidents that suddenly occur. 8.1.3 The aerial work without any objective risk factors listed in 8.1.2 shall be classified according to Class A method specified in Table 2, and the aerial work with one or more objective risk factors listed in 8.1.2 shall be classified according to Class B method specified in Table 2.

table 1 distance between operation range and dangerous voltage charged body

table 2 classification of work at heights 8.2.1 operators should wear safety belts that meet the requirements of GB695 correctly.

insulating tools or uniform clothes should be used when working at high places with electricity.

communication tools should be equipped for ⅳ-level work at heights (more than 3m). 8.2.2 Work at heights shall be supervised by designated personnel, and the operators shall not rest in the operation place. 8.2.3 Hanging cages, ladders, baseboards, springboard, etc. that meet the safety requirements of GB26557 and other standards shall be provided according to actual needs, and the erection of scaffolding shall comply with relevant national standards. 8.2.4 When working on light materials such as color steel roof, asbestos tile, corrugated board, etc., solid scaffold boards should be laid and fixed, and anti-skid measures should be taken on the scaffold boards. 8.2.5 When carrying out operations near vent pipelines or chimneys where toxic and harmful gases and dust are discharged, it is necessary to get in touch with the relevant personnel at the operation site in advance and determine the contact information, and equip the operators with necessary protective devices (such as air respirator, filter gas masks or masks) that meet the relevant national standards. 8.2.6 When working in rainy and snowy days, reliable anti-skid and cold-proof measures should be taken; In case of severe weather such as strong wind and dense fog above level 5, aerial work, open-air climbing and suspended aerial work should not be carried out; After snowstorm, typhoon and rainstorm, the operation safety facilities should be inspected and the problems should be dealt with immediately. 8.2.7 Tools, materials and parts used in operation should be put into tool bags, and objects should not be held in hands when going up and down, and tools, materials and other items should not be thrown. When tools and materials that are easy to slide and roll are stacked on scaffolding, anti-falling measures should be taken. 8.2.8 When crossing with other operations, they should go up and down according to the specified route, and should not go up and down vertically. If vertical operations are really necessary, reliable isolation measures should be taken. 8.2.9 If the safety protection facilities are temporarily dismantled or changed due to the necessity of operation, it shall be approved by the operation approver, and corresponding protective measures shall be taken, and it shall be resumed immediately after operation. 8.2.1 If the operator finds any abnormal situation during the operation, he should send a signal in time and leave the site quickly. 8.2.11 When dismantling scaffolding and protective shed, a warning zone should be set up and special personnel should be assigned for monitoring, and the upper and lower parts should not be constructed at the same time.