Safety knowledge for high-altitude operations in mobile tower maintenance

1. Common sense of safety inspection for working at heights

1. Any operation at a height where the fall height is 2 meters (including 2 meters) from the reference plane and there is a possibility of falling is called Working at heights.

2. Before working at heights, dangerous points must be analyzed and preventive measures must be formulated. 3. Before working at height, carefully check the safety protection facilities.

For example, check whether the lifting equipment is safe and reliable, and whether the braking, safety devices and protective devices of the lifting machinery are safe and reliable. If any problems are found, they should be dealt with promptly. 4. Safety fences and warning signs should be set up at high-altitude working areas to prevent pedestrians and vehicles from passing and to prevent injuries from falling objects.

5. When working at heights, the safety helmet should always be worn on the head and should not be taken off casually. 6. When working at heights, safety belts must be used. The hooks or ropes of the safety belts should be hung on strong and firm components or on wire ropes specially designed for safety belts.

Do not hang on moving or unstable objects.

2. What safety matters should be paid attention to when working at heights

1. The hook or rope of the safety belt should be hung on a strong and solid component or a wire rope specially used for hanging the safety belt. superior.

Do not hang on moving or unstable objects. 2. Tool bags should always be used when working at heights.

Larger tools should be tied to solid components with ropes and are not allowed to be left lying around to prevent accidents caused by falling from high altitudes. 3. When working at heights, except for relevant personnel, no one is allowed to walk or stay below the work site. Fences or other protective devices should be installed below the work site to prevent injuries from falling objects.

If you are working on a grated platform, planks should be laid to prevent tools and equipment from falling. 4. Tools and materials are not allowed to be thrown up and down. They must be tied firmly with ropes and then hoisted downwards or upwards to avoid injuring workers below or destroying the scaffolding.

5. When working on the upper and lower floors at the same time, strict and solid protective partitions, canopies or other isolation facilities must be erected in the middle, and workers must wear safety helmets.

3. What are the basic provisions for safety measures for working at heights

The basic provisions for safety measures for working at heights are as follows: (1) Safety technical measures for working at heights and the required materials Tools must be included in the construction organization design of the project.

(2) The person in charge of unit project construction shall be responsible for the safety technology of high-altitude operations of the project and establish a corresponding responsibility system. Before construction, safety technical education and briefings should be carried out step by step, and all safety technical measures and personal protective equipment should be implemented. Construction shall not proceed without implementation.

(3) Safety signs, tools, instruments, electrical facilities and various equipment used in high-altitude operations must be inspected before construction to confirm that they are in good condition before they can be put into use. (4) Personnel who climb and suspend operations at heights and those who set up safety facilities for operations at heights must undergo professional technical training and pass professional examinations, hold a certificate to work, and must.

Have regular physical exams. (5) When defects and hidden dangers are found in safety technical facilities for high-altitude operations during construction, they must be solved in a timely manner; when personal safety is endangered, operations must be stopped.

(6) All objects that may fall in the construction site should be removed or fixed first. Materials used in high-altitude operations should be stacked smoothly and not hinder passage, loading and unloading.

Tools should be placed in tool bags; walkways, passage boards and climbing equipment during operations should be cleaned at all times; disassembled objects, remaining materials and waste materials should be cleaned and transported away in a timely manner, and should not be left indiscriminately Set or discard downward. Throwing of passing objects is prohibited.

(7) When working at heights in rainy or snowy days, reliable anti-skid, cold-proof and anti-freeze measures must be taken. All water, ice, frost and snow should be removed promptly.

For high-rise buildings where high-altitude operations are carried out, lightning protection facilities should be installed in advance. In the event of severe weather such as strong winds below Level 6, dense fog, etc., open-air climbing and suspended operations at high altitudes are not allowed.

After snowstorms and typhoons, safety facilities for working at heights should be inspected one by one. If any looseness, deformation, damage or falling off are found, they should be repaired and improved immediately. (8) When the safety protection facilities are temporarily dismantled or changed due to the necessity of the operation, the consent of the person in charge of the construction must be obtained, and corresponding reliable measures must be taken. The operation should be restored immediately.

(9) When erecting and dismantling the protective shed, a warning area should be set up and a dedicated person should be assigned to monitor it. It is strictly prohibited to dismantle the top and bottom at the same time.

(10) For the main force-bearing members of safety facilities for working at heights, the mechanical calculations are based on general structural mechanics formulas, and the strength and deflection calculations are based on current relevant specifications. However, the strength calculations of steel bending members are not considered. Plastic effects, the structure should comply with the requirements of the current corresponding specifications. .

4. What are the main safety precautions for high-altitude operations in communication projects?

1. Prevent personal injury, fall, and slip accidents 1. During winter construction, labor protection should be strengthened and construction personnel should wear Wear gloves, rubber-soled shoes, and add anti-slip measures. Hard-soled shoes are strictly prohibited.

2. You must wear a safety helmet when entering the construction site. Cold-proof hats cannot replace safety helmets; 3. When working in the open air, you must be equipped with cold-proof supplies. When constructing on the rack, be careful to prevent the "probe board" from stepping on the air and working at high altitudes. Seat belts must be worn, and on horse stools with a height of more than 1.5 meters, one person must operate and one person shall supervise; 4. Personnel working at heights must wear anti-slip shoes, protective gloves and other anti-slip and anti-freeze measures, and must fasten their seat belts; 5. 4 Tower crane installation and jacking operations are prohibited in strong winds above level 1, and lifting operations and high-altitude operations are prohibited in strong winds above land level. On land, when the steel ropes used for binding and lifting steel components in negative temperatures are in direct contact with the components, anti-slip spacers should be installed. Check whether the hoisting wire rope is damaged, whether the U-shaped clamp is locked, and whether the hook insurance is effective; Because the material is brittle and slippery in winter, tools for lifting heavy-tonnage cargo must have a greater safety factor to fully Ensure safety; When encountering bad weather such as rain or snow, the accumulated water and snow at the construction site must be removed in time. It is strictly forbidden to organize construction in rain, snow and windy weather.

2. Prevent fire and poisoning accidents 1. To prevent fires, fire-fighting facilities and equipment should be complete, intact and functional, and flammable and explosive items should not be piled in the computer room (base station); 2. Safety officers should regularly inspect the power supply and fire prevention at the construction site to prevent communication, fire accidents and theft; 3. It is strictly forbidden to use open fires for heating at the construction site, especially at the construction site. Once discovered, heavy fines will be imposed; 4. Working in manholes "One pass, one inspection" should be implemented beforehand: (1) Before manhole operations, the front and rear manhole covers in the working area should be opened and ventilated first. (2) Check whether there are poisonous and harmful gases in the manhole to ensure safety in the well.

5. When working in manholes, "one thing to wear, one thing to look at, two things not allowed, and three things forbidden": (1) Operators should wear safety helmets, waterproof pants and rubber boots. (2) There should be dedicated personnel guarding the outside (top) of the well.

(3) It is not allowed to light a blowtorch in the well; it is not allowed to smoke in the well. (4) Non-operators are prohibited from watching; it is prohibited to bring flammable materials into the manhole; it is strictly prohibited to use flammable materials to clean the cables (gasoline, alcohol, toluene, etc.).

3. Preventing Cybersecurity Accidents in China 1. It is strictly prohibited to use high-heat lamps (such as sun lamps, etc.) for temporary lighting during construction in the computer room, and it is strictly prohibited to use non-construction electric heating appliances such as electric water heaters and electric furnaces; 2. Winter construction The temperature is low, and construction workers have inflexible joints, many clothes, and inconvenient movement. When installing equipment and deploying cables, they should pay attention to the safety of the equipment and the site to prevent any interruption of the site's business due to construction; 5. Optical (electrical) cables Before the cutover, relocation or demolition, detailed cutover, relocation or demolition plans and procedures must be formulated, a thorough analysis must be conducted, on-site resources must be carefully surveyed and the cutover, relocation or demolition data must be verified. After the old plans, steps and methods (including personnel, production equipment, cold protection, anti-freeze, wind protection and other auxiliary tools) for connecting, relocating or dismantling the old ones are determined and approved, technicians (administrator or above) of each participating unit will verify the site again. , it can only be carried out on-site under the command of supervisory technicians stationed on-site to avoid communication accidents such as cutover errors, business interruption or accidental disassembly; land, pipeline optical (electrical) cables in urban areas and towns During construction, safety signs are required to be placed at each wellhead, and people need to be guarded and pay attention to passing vehicles. When the length of a single optical (electrical) cable is long, more migrant workers are required for manual laying. This is necessary during construction on complex road surfaces. Strictly organize and cooperate closely, and be equipped with good communication tools (such as wireless walkie-talkies, speakers, etc.) to coordinate the actions of construction workers to ensure personal safety and the safety of optical (electrical) cables; when constructing on the side of the highway, install as many safety production facilities as possible For signs and slogans, the signs should be connected in series with reflective tapes. During nighttime construction in urban areas, fog lights should be installed as warnings, and personnel should be arranged to cooperate with the traffic department to ease traffic. Before welding bars and steel pipes, test welding should be carried out. After the test welding is passed, Formal welding can be carried out. When butt welding steel pipes, in order to prevent the temperature difference from being too large and affecting the welding quality, protective measures should be taken for the welded joints. When it snows, they should be covered with appropriate items. Uncooled joints after welding are strictly prohibited from touching ice and snow; 9. Strengthen construction quality monitoring. There must be no transverse cracks at the joints. When a joint does not meet the requirements, the batch of joints should be inspected and unqualified products should be removed. After re-welding, a second acceptance inspection should be carried out. The welding should be carried out in a windshield. Construction within the structure will not continue when the temperature is below -20 degrees Celsius. 4. Preventing traffic safety accidents 1. Strengthen the maintenance and upkeep of engineering vehicles to prevent accidents caused by vehicle failures; 2. It is strictly prohibited to drive under the influence of alcohol, drive without a license, and drive while fatigued; 3. In the event of severe ice and snow weather, vehicles are moving Driving distance should be maintained to prevent rear-end collisions.

5. Heating and fire prevention in winter 1. The use of coal-fired heating in dormitories during winter construction should prevent carbon monoxide poisoning of dormitory construction workers. Sufficient ventilation conditions should be ensured in the dormitory; ventilation funnels should be installed in each dormitory according to the size of the room. Dimensions: The length is not less than 50cm, the width of the lower opening is not less than 30cm, and the width of the upper opening is not less than 5cm. Each room is equipped with at least three ventilation funnels. 2. Designate a dedicated person to seal the fire before turning off the lights every day. Coal-fired heating facilities are strictly prohibited from being exposed. The stove plate and furnace cover should be tightly buckled. If the stove plate and furnace lid cannot be fully buckled and tightly covered, they should be plastered tightly with loess mud. To prevent gas leakage.

3. When installing the smoke exhaust pipe of heating facilities, the socket of each pipe should be installed in the direction of medium circulation, and the interface should be sealed with tape; the outlet of the smoke exhaust pipe should not be less than 50cm beyond the eaves, and the riser should not be less than 50cm. Less than 2.0m, the distance between the horizontal pipe and the roof of the house must not be less than 50cm, and its orientation must not face the northeast direction where the winter monsoon blows. 4. Clothes and other flammable items must not be dried on the smoke exhaust pipe, and flammable, explosive, or volatile toxic substances must not be piled near heating facilities.

5. The unburned coal removed when sealing the fire should be cleared out of the room, and the unburned coal should be extinguished with clean water. Lu. Carry out safety education to prevent incidents such as burns and gas poisoning, and provide education on medical rescue and emergency response to emergencies.

Qi. It is strictly forbidden to connect electric blankets, electric stoves and other heating facilities in dormitories, offices and warehouses; it is also not allowed to use iodine tungsten lamps for heating indoors or on site.

5. What should be done when working at heights requires the use of mobile ladders

Should: ① Inspect before use, and usually have dedicated personnel responsible for safekeeping, maintenance and repair.

② Before use, the ladder must be placed firmly, and the angle with the ground should be 60° to 70°. The top of the ladder should be securely connected to buildings and structures. ③ When using a ladder on a wooden floor, the corners of the ladder should be equipped with metal anti-slip devices; when using a ladder on a hard and smooth concrete floor, the corners of the ladder should be equipped with rubber-covered fiber anti-slip pads, and there should be a dedicated person to support you when necessary.

④ It is strictly prohibited for two people to stand on the same single ladder at the same time for work. Operators are not allowed to stand at the top of the ladder. When using a leaning ladder, they should be no less than four steps from the top. When using a herringbone ladder, they should be no less than two steps away. step. Ladders and herringbone ladders should be fixed with ropes, and the fixed connection ropes must be checked to be qualified before operation, and other items such as wires must not be used instead.

⑤ It is strictly prohibited to move the ladder when there are people on it. ⑥ When using a ladder near a rotating machine, temporary protective isolation facilities should be installed between the ladder and the rotating part of the machine.

6. What are the safety education contents for workers working at heights

(1) Workers working at heights must pass a physical examination before they can perform construction work;

( 2) When working at heights, you must wear safety belts, non-slip shoes, hang hooks, and have protective facilities such as safety fences and safety nets;

(3) When working at heights in poor conditions, avoid working alone Operate alone;

(4) When working at heights, construction tools and materials must be protected to avoid falling, and it is strictly prohibited to discard waste downwards

(5) When erecting an electric crane When erecting the scaffolding, the operations must be unified and coordinated, and it is strictly prohibited to use accessories whose materials, specifications and defects do not meet the requirements;

(6) When dismantling the scaffolding, it must be dismantled in the reverse order of erection;

(7) It is strictly prohibited for operators to use ropes and cranes as ladders to go up and down, and it is strictly prohibited to work on unfixed scaffolding;

(8) When working at heights at night, adequate lighting equipment is required to avoid collapse. , Clear signs should be set up in hollow areas;

(9) When there are high-voltage wires near high-altitude operations, they should be removed first or protective measures should be taken.