Protection measures for the hottest lightning prot

2022-08-11
  • Detail

Lightning protection, high-voltage line and hot gas pipe protection measures

I. lightning protection safety measures:

technical problems of hardness tester conversion 1 Improve the lightning protection awareness of site managers and construction personnel. Because the construction is closely related to the weather. Construction management personnel and workers should pay attention to weather forecast and other meteorological information in advance. In case of thunderstorm, the construction shall be stopped, and all personnel on the construction site shall evacuate the unfinished buildings, and try to avoid sheltering in the temporary shed

2. Take practical and effective preventive measures according to the weather conditions and the actual situation of the construction site. When thunderstorms come, construction personnel should stay away from some metal objects on the construction site, and do not take shelter in isolated sheds; If there is no place to hide, you can take shelter from the rain within the cone at an angle of 45 degrees with the top of the lightning arrester; Don't stand high, don't hold an umbrella or hold metal objects. Instead, find a dry and low-lying place to squat down with your feet together to avoid stepping voltage

3. Do a good job in lightning protection at the construction site. Ground the main reinforcement of the concrete column of the building structure framework to prevent lightning strike during construction; Metal doors and windows shall be connected with the main reinforcement of the concrete frame

4. Carry out safety education for construction personnel entering the site and publicize various precautions

5. All construction personnel must wear safety helmets when entering the site, fasten safety belts when working on the roof, and check whether the safety belts are safe and effective, and whether they are damaged. Qualified safety belts must be used

6. The safety belt must be fixed on a solid building and watched by a specially assigned person

7. The materials on the construction site shall be stacked neatly, with clear classification and specification identification, and shall not occupy the construction road and operation area. Temporary facilities must be set up according to the plane layout, electric welding machines and tools must be arranged, and flat steel, angle steel and various materials must be stacked in order

II. Safety measures against high voltage:

1 The steel column on one side of the project is close to the high-voltage line, and the experimental force that the sample can bear is as small as a few 10cn (such as spandex for textile), and the horizontal distance is about M. therefore, the project department establishes the high-voltage line as a major hazard source, and formulates safety technical measures for major hazard sources according to the specifications and construction schemes. Hang safety warning signs at main construction sites, operation points and dangerous areas

2. When the hoisting operation is close to the high-voltage line, hoist from the side behind the high-voltage line, and then slowly and smoothly move to the designated position. Under the command of a specially assigned person, pay special attention to keeping a safe distance of more than 3m between the hoisted object and the high-voltage line. The operators must remind and care for each other

3. There must be a specially assigned person to patrol and monitor the safety dynamics of all links of the operation, and the whole process must be monitored if there is any non-compliance with the safety specifications, especially when it is close to the high-voltage line

4. Post high voltage line danger warning signs

5. During the hoisting operation, the dangerous area shall be delimited, obvious safety signs shall be hung, the hoisting operation area shall be closed, and special personnel shall be assigned to strengthen the safety alert to prevent other personnel from entering the hoisting dangerous area. During the hoisting construction, a special person shall be assigned to listen to the weather forecast at a fixed point. When the wind speed reaches 15m/s (above level 6), the hoisting operation must be stopped, and the preventive inspection before and after the typhoon and thunderstorm weather must be done well

6. Operators must check their bodies before construction, and personnel suffering from diseases not suitable for working at heights shall not be arranged for working at heights. Operators must work with certificates, and hoisting hook personnel must be relatively fixed. The rigging shall be complete, standardized and effective. It can be used only after passing the inspection before and during use. Unified orders, clear command and close cooperation must be given during hoisting operation. During the hoisting of components, when the components are off the ground, the hoisting shall be suspended, and the slings, fixtures, etc. shall be comprehensively checked to ensure that all aspects are safe and reliable before hoisting

7. The hoisted components shall be assembled on the ground as far as possible, and the assembly platform shall be well prepared to ensure its strength. The assembled components shall be taken with reliable anti dumping measures. When working at heights in connection processes such as electric welding and high-strength bolts, edge protection and reliable safety measures must be set. During operation, the safety belt must be fastened and anti-skid shoes must be worn. If it is necessary to walk on the component, the steel wire rope must be hung on the component in advance, and the steel wire rope must be tightened with basket bolts to ensure safety. And hang the safety belt buckle on the safety rope when operating and walking. Operators shall pass through the specified passages and walkways, and shall not climb in non specified passages

8. It is forbidden to throw any objects at high altitude, and the transmission objects shall be fastened with ropes. Screws, nuts, hand tools, welding rods, cutting blocks, etc. in high-altitude operations must be placed in intact tool bags, and the tool bags must be tied and fixed. They must not be placed at will to prevent objects from falling and hitting

9. The construction site shall be neat and clean. Equipment, materials and accessories shall be stacked at the designated place and walked on the designated road. It is not allowed to pass through dangerous areas, and it is not allowed to pass under lifting objects, and keep a distance from running machines. Cut off the power supply before or after work, check the operation place, and leave after confirming safety

10. Carry out safety education for construction personnel entering the site and publicize various precautions

11. All construction personnel must wear safety helmets when entering the site, fasten safety belts when working on the roof, and check whether the safety belts are safe and effective, and whether they are damaged. Qualified safety belts must be used

12. The safety belt must be fixed on a solid building and watched by a specially assigned person

13. Before construction, check whether the working surface is flat, whether the scaffold is firm, whether there is a probe board, and bind it firmly before construction

14. During the hoisting operation, the rope must be checked for damage, and it can be used only after there is a reliable tension, and the workers cannot feel the feeling of strangulation when pulling

15. Before hoisting, the site shall be cleaned to ensure an effective working surface, and guardrails shall be set up to prevent miscellaneous personnel from entering the transportation site. The caregiver must be highly vigilant and observe the surrounding conditions

16. No construction is allowed in the weather above grade IV wind and rainy days

III. safety measures for heat resistant gas pipe:

1. The steel column on one side of the project is close to the hot gas pipe, and the horizontal distance is about M, so there are safety hazards in the construction process. Therefore, the project department also sets up the hot gas pipe as a hazard source, and formulates safety technical measures for the hazard source according to the specifications and construction schemes. Hang safety warning signs at main construction sites, operation points and dangerous areas

2. When the lifting operation is close to the hot gas pipe, it shall be commanded by a specially assigned person, and special attention shall be paid to maintaining a distance of more than 2m between the lifting object and the hot gas pipe. The operators must remind each other and care about each other, and miscellaneous personnel shall stay away from the source of danger

3. there must be a special person to patrol and monitor the safety dynamics of all links of operation. If there is any place that does not conform to the safety specifications of electromechanical and electrical appliances during liquidation, it must be monitored in the whole process, especially when it is very close to the hot gas pipe

4. put up warning signs of hot gas pipes

Copyright © 2011 JIN SHI