1, compilation basis
Safety Work Regulations for Electric Power Construction (Overhead Power Lines) (DL5009.2-2004)
Code for Construction and Acceptance of 10kV Overhead Power Lines (GB 50233-2005)
Regulations on Safety, Health and Environment Management of Electric Power Construction
Working Rules for Power Safety of State Grid Corporation (Power Line) (Trial)
2. Project overview
2. 1 construction scope
According to the engineering drawings of 10KV rural power network upgrading project of Xinbahu Zuo Qi Electric Power Company in 2009, the substation exit 1 10kV Forrest Gump line was demolished and recycled.
2.2 Main quantities
Old line: 396 poles, 60 cables, with a total length of 40 kilometers.
2.3 Overview of production line
The connection point of the bridge line is one place: pole 144 is newly built on Forrest Gump line.
The live line of the old line is Forrest Gump LINE NO. -No.. Telephone poles (near forest farms).
3. Preparation and conditions for operation
3. 1 job preparation:
3. 1.65438+ Personnel who have not participated in the disclosure shall not participate in the construction.
3. 1.2 Construction machinery and instruments are fully prepared and have the conditions for use.
3.2 Operating conditions:
3.2. 1 Construction tools and instruments are well prepared, and safety facilities are complete, and they are qualified through inspection.
3.2.2 On-the-spot investigation: Check the topography and geology of the pole position on the spot, and see if there are any obstacles near the pole position, such as power lines, which affect the safety of cable laying and pole dismantling.
4. Labor planning, configuration of main construction machinery and tools
4. 1 labor force plan
In order to reasonably arrange the demolition of the old line, the number of construction personnel is shown in the following table:
Division of posts
Team leader safety officer technology
Quality engineering machinery
On the management of surgical tools and instruments
Zuoyedi noodles
Zuo Ye
Staffing: 1-2, 1, 1, 2, 1, 10.
4.2 Construction machinery
According to the situation of the construction site, we are mainly equipped with 1 8t truck crane, 1 dongfanghong 804 rubber-tyred vehicle and steel pipe rack, 2 small liberation vehicles and 2 pay-off vehicles.
4.3 tools
Requirements for the use of main tools
To cut (wool)
The pulley ① should be lubricated and maintained regularly to ensure flexible rotation.
(2) The hook or lifting ring is deformed, the rim is damaged, and the shaft is worn. It is strictly prohibited.
(3) The hook pulley must have a sealed safety pin buckle.
wirerope
(1) When the noose is plugged, the length of the rope should not be less than 15 times the diameter of the wire rope, and the shortest length should not be less than 300 mm. ..
(2) Wire ropes (sets) in any of the following circumstances shall be scrapped or cut off:
▲ When the number of broken wires of steel wire rope within a pitch exceeds the value in Appendix B.5 of safety regulations.
▲ When the steel wire rope is worn or rusted, the number of scrapped steel wires in Appendix B.5 of safety regulations shall be reduced according to B.6, and scrapped according to the reduced number of broken wires.
▲ The core of the rope is damaged or the strands are squeezed or broken.
▲ Cage deformity, severe kinking or bending.
▲ Severe flattening and reduced cross section.
▲ Burn or electrocautery.
Release ① It is forbidden to deform the U-ring or damage the pin thread.
(2) The shackle shall not be stressed laterally.
(3) The pin shall not be buckled on the movable rigging.
Attached Table: Demolition Table of Old Pipeline Tools and Instruments
Tools and instruments needed for dismantling old pipelines
Serial number name specification unit quantity remarks
1 Winder Table 2
2 u-shaped ring 4
3. Wire pliers handle 5
There are only six wires in four walkie-talkies
Five electroscope 5
6 electroscope 3
7 foot buckle payment 1 1
Note: The specifications and quantity of instruments in the above table should be equipped according to the engineering situation. This table is for reference only.
4, operation process, operation method and requirements
4. 1 workflow
4.2 Operation method
4.2. 1 pulley installation
The model of the thread removal pulley is φ 200× 40. The thread removal pulley should be close to the suspension point of the conductor, and the position should be fixed at the cross arm connection to reduce excessive traction.
Wire removal
In the process of removing stitches, items A and C are removed first, and item B is removed finally. Prevent the pole from being twisted or toppled due to uneven stress. As shown in the figure below:
Item B (Final Demolition)
Item A (can be removed first)
Item C (can be removed first)
Hardware removal
4.2.3. 1 Remove the head vertical iron bottle.
4.2.3.2 removed the headframe iron.
4.2.3.3 removed the horizontal arm vertical bottle.
4.2.3.4 removed the cross arm and hoop.
Demolition of pole foundation
4.2.4. 1 The hanging point of the hook should be between 1.5m-2m on the center of gravity of the hoisted object, and the wire rope of the hook should be vertical, and it is not allowed to be pulled obliquely.
4.2.4.2 crane should be lifted slowly and smoothly, but not at high speed.
4.2.4.3: When the pole is basically lifted off the ground, the lifting should be stopped, and all stressed parts should be checked for abnormalities-work can be continued only after it is confirmed that there are no abnormalities.
5, construction safety and environmental protection requirements
5. 1 aerial work
5. 1. 1 Personnel engaged in aerial work must undergo physical examination and training before they can operate.
5. 1.2 Full-time safety guardians must be set up for aerial work, and the safety guardians must always be on site, and may not take up other jobs.
5. 1.3 Operators working at heights must fasten their seat belts, and may not hang them low and use them high. Check whether the safety belt is fastened at any time during construction.
5. 1.4 Tools and materials used by aerial workers should be put in tool bags to prevent falling objects. Objects passed up and down should be hoisted with ropes, and throwing is strictly prohibited. Try to avoid cross-homework. When crossing up and down, be sure to distinguish your own safety ropes, and be careful not to misunderstand others' safety ropes. We should take care of each other and cooperate closely.
5. 1.5 In case of thunderstorm, rainstorm, gale above level 5, it is forbidden to work at heights.
5.2 electric shock prevention
5.2. 1 When removing the thread, it is necessary to use 10kV92 1 Forrest Gump to untie the bridge line of the newly-built line to ensure the safety of the construction line, and assign special personnel to guard the bridge line connection area.
5.2.2 Any operation that needs to touch the conductor must be tested with a test pen to ensure that the construction can continue without electricity.
5.2.3 Take out stitches in thunderstorm weather.
5.2.4 Electrostatic effect should be paid attention to in windy weather, and needle sewing should be stopped when the wind force is greater than level 5.
5.2.5 When working at heights near charged bodies, if the minimum safe distance from charged bodies can't meet the requirements in the table below, it is necessary to contact with power failure or take reliable safety technical measures, and the construction can only be carried out after the approval of the chief engineer.
5.2.6 The installation of grounding device shall meet the following requirements:
5.2.6. 1 The section of safety grounding wire should not be less than 16m2.
5.2.6.2 grounding wire should use braided soft copper wire, and other wires are not allowed.
5.2.6.3 grounding rod should be galvanized, the cross section should not be less than 16m2, and the depth inserted into the ground should be more than 0.6m
When installing the grounding wire in 5.2.6.4, it is necessary to connect the grounding terminal first, and then press the conductor or lightning protection terminal, that is, "install the grounding side first, then install the grounding side", but the opposite is true when disassembling, that is, "disassemble the grounding side first, then disassemble the grounding side".
Minimum safe distance between aerial work and charged body
The term of charged body voltage grade (kV) is ≤10 35110 220 500.
Instruments, installation parts, wires, grounding wires, etc.
Distance to charged body (m)
Distance between operator's moving range and charged body (m) 1.7 2.0 2.5 4.06.0
5.2.7 When working near charged bodies, attention should be paid to ensuring the safe distance between various objects and lines during construction. Lightweight ropes and appliances should be well rooted to prevent them from fluttering in the wind and approaching adjacent live lines.
5.3 Traffic safety
5.3. 1 during the transportation of the pole base, the escort personnel should strengthen the inspection on the way to prevent the binding from loosening, and prevent the pole base from being scratched by trees and obstacles in the street when passing through narrow roads or bends.
5.3.2 Construction personnel shall be transported to and from work by car, and it is forbidden to mix passengers and goods.
5.3.3 Drunk driving, speeding and overloading are strictly prohibited.
5.3.4 Strictly abide by relevant national and local traffic laws and regulations.
5.4 Environmental protection requirements
5.4. 1 Various instruments shall meet the requirements of safety and environmental protection and have good performance.
5.4.2 On-site instruments and materials shall be neatly stacked, and shall not be piled up; The scope of centralized construction must be equipped with eye-catching warning signs and colorful flags. You must wear a safety helmet when entering the construction site.
5.4.3 First-aid information should be kept unblocked at any time.
5.4.4 Construction wastes and discarded articles shall be classified and stored in designated places, and properly handled according to regulations.
5.4.5 After the construction, the workplace shall be thoroughly cleaned, so as to "clear the site after work".
5.4.6 The fire control facilities and equipment on the construction site shall be complete and effective.
5.4.7 The electrical equipment in the office, tool room, warehouse, living area and site shall meet the safety requirements, and it is forbidden to connect them without permission to ensure the safe use of electricity.
5.4.8 Vehicles, machines and equipment should be regularly maintained and inspected to avoid environmental pollution or personal injury such as oil leakage. When using, always prepare thick ponchos, oil-absorbing cotton and other preventive items.
5.4.9 Make rational use of the construction terrain, reduce the damage to vegetation and young crops, and minimize the impact of construction on the natural ecological environment.
6, emergency plan and dangerous point prevention
6. 1 purpose
This plan is formulated in order to prevent and control potential casualties or emergencies, make emergency preparations and responses, and minimize possible casualties and property losses.
6.2 scope
This plan is applicable to emergency situations such as casualties that may occur in the construction site of the 10kV Forrest Gump line demolition project undertaken by our company.
6.3 Potential accidents or emergencies
No. Possible injuries caused by potential accidents or emergencies.
1 most people were killed or injured when the pole foundation collapsed.
Personal injury or death caused by falling from a height
Personal injury caused by falling from a height
4. Personal injury or death caused by object strike.
5 electric shock casualties
6 casualties in traffic accidents
6.4 Emergency preparedness
6.4. 1 Set up an emergency leading group, with the leader as the group leader, the operation leader of each construction group as the deputy group leader, and the team members are composed of various safety officers.
6.4.2 The construction team is responsible for perfecting the contact information tables of local governments, police stations, hospitals and other units, as well as companies, managers and key technicians, so as to ensure timely acquisition of relevant information.
6.4.3 Emergency vehicles shall be engineering vehicles equipped by each construction team;
6.4.4 Conduct emergency rescue knowledge training for employees, and organize personnel to conduct drills regularly.
6.4.5 The construction site shall be equipped with necessary emergency tools.
6.4.5. 1 stretcher;
6.4.5.2 medical kit is equipped with necessary first-aid drugs according to emergencies, such as medical gauze and disinfection and anti-inflammatory drugs.
6.4.6 Determination of on-site first aid team personnel
6.4.6. 1 The on-site safety guardian is the first emergency person and must pass the emergency rescue training;
The on-site safety guardian in 6.4.6.2 must have an information contact list, and can contact the outside world in time in case of emergency;
Personnel from the same operation group in 6.4.6.3 joined the first aid group in time to participate in emergency treatment;
6.5 Emergency response
6.5. 1 foundation dumping
6.5. 1. 1 The same group of personnel shall organize personnel to take measures to rescue the personnel buried in the soil;
6.5. 1.2 For the rescued wounded, check whether they are conscious; If not, further check whether they have breathing and heartbeat; Otherwise, implement cardiopulmonary resuscitation immediately;
6.5. 1.3 For the injured with normal breathing and heartbeat, check whether there is a fracture. If there is a fracture, it should be fixed. Never hug or turn over at will to prevent irreparable consequences caused by fracture and nerve amputation.
6.5. 1.4 timely contact with the emergency leading group and the outside world;
6.5. 1.5 Use a temporary stretcher to carry the injured to the intersection where emergency vehicles can reach, and send the injured to the nearest hospital for rescue in time;
6.5.2 Falling from a height
6.5.2. 1 Operators in the same group shouted for help and asked relevant personnel for help.
6.5.2.2 checked the falling people to see if they were conscious. If unconscious, further check whether there is breathing and heartbeat. Otherwise, they will immediately implement cardiopulmonary resuscitation. If the wound of the injured person bleeds, the wound should be immediately pressed to stop bleeding and bandaged with on-site medical articles. If a fracture occurs, it should be fixed, and it is absolutely forbidden to hug or turn over at will to prevent irreparable consequences caused by fracture and nerve amputation.
6.5.2.3 contacted the emergency leading group and the outside world in time, and obtained the assistance of 120 emergency center;
6.5.2.4 used a temporary stretcher to carry the injured to the intersection where emergency vehicles can reach;
6.5.2.5 promptly sent the injured to the nearest hospital for treatment;
6.5.3 Falling from a height
6.5.3. 1 Operators in the same group shouted for help and asked relevant personnel for help.
6.5.3.2 examined the wounded. If there is a fracture, it should be fixed. Never hug or turn over at will to prevent irreparable consequences caused by fracture and nerve amputation.
6.5.3.3 used temporary stretchers to transport the injured to the crossroads where emergency vehicles can reach.
6.5.3.4 promptly contacted the emergency leading group and the outside world, and transported the injured to the nearest hospital for treatment.
Object impact
6.5.4. 1 Operators in the same group shouted for help and asked relevant personnel for help.
6.5.4.2 Emergency Team stopped bleeding and bandaged the wound for the injured;
6.5.4.3 contacted the emergency leading group and the outside world in time, and obtained the assistance of 120 emergency center;
6.5.4.4 used a temporary stretcher to carry the injured to the intersection where emergency vehicles can reach; Send the injured to the nearest hospital for treatment in time;
electric shock
6.5.5. 1 immediately notify the owner's project manager to cut off the power supply;
Workers in the same group in 6.5.5.2 shouted for help and sought the help of relevant personnel.
6.5.5.3 rescue team inspected the electric shock personnel. If the electrocuted person has stopped breathing or heartbeat, he should be given cardiopulmonary resuscitation immediately until the electrocuted person wakes up.
6.6.5.4 promptly contacted the emergency leading group and the outside world to send the electric shock personnel to the nearest hospital for rescue;
traffic accident
6.5.6. 1 Passengers should call for help loudly and get help from relevant personnel;
6.5.6.2 rescues the injured and checks whether they are conscious. If not, further check whether they have breathing and heartbeat. Otherwise, immediately implement cardiopulmonary resuscitation.
6.5.6.3 should check whether there is a fracture for the injured with normal breathing and heartbeat. If there is a fracture, it should be fixed. Never hug or turn over at will to prevent irreparable consequences caused by fracture and nerve amputation.
6.5.6.4 contacted the emergency leading group and the outside world in time; Call "120, 122".
6.5.6.5 promptly sent the injured to the nearest hospital for rescue;
Prevention of dangerous points
6.5.7. 1 Before thread cutting, all the threads should be in the pulley, and the part that affects the rotation of the pulley should be removed, and then cut on the end rod of the stay wire after it is normal. Before removing the linear tie rod, temporary stays should be laid to ensure the safety of the rod seat, and then the thread can be removed.
6.5.7.2 wire removal work should have a clear division of labor, and a full-time security officer should be set up at the scene; Signal personnel must stick to their posts, keep the signal unblocked, be serious and responsible, report and deal with problems in time; When crossing roads and other important places, safety signs and flags should be set at prominent positions on the roads, and special personnel should be assigned for on-site supervision.
When 6.5.7.3 takes out the wires, the personnel shall not stand or straddle the inner corner side of the stressed wires, vertically below the unfolded wire coil and the traction rope or overhead line, so as to prevent accidental injury in line operation.
Check that guy before 6.5.7.4 takes out the stitches. If necessary, temporary pull rope should be added.
When 6.5.7.5 winder is working, the rotating speed should not be too fast, and it should be guarded by special personnel. In case of emergency (e.g. the wire gets stuck in the pulley, etc.). ), should immediately stop, in order to reduce the occurrence of accidents.
6.5.7.6 construction personnel should be equipped with safety equipment, and they must wear safety helmets correctly when entering the construction site; Safety belts must be fastened for aerial work, and tools and materials used must be hoisted by ropes. Do not throw them.
Commander 6.5.7.7's command signal must be clear and accurate. And stand in a safe position where the operator can clearly see the command signal. When commanding with the load, the load should be commanded to avoid people and obstacles at any time.
In 6.5.7.8, when the hardware rusts on the rod and it is difficult to work, it can be removed after pulling out the rod seat.
6.5.7.9, before hooking the hook, observe whether there are serious cracks at the bottom of the pole. For the severely cracked strip foundation, put it aside and report the situation to the management.
7, civilized construction goal
7. 1 civilized construction goal
7. 1. 1 Be polite and put an end to violations.
7. 1.2 The office and living facilities are complete and orderly.
7. 1.3 The layout of the construction site should be standardized, and the tools and materials should be placed neatly and clearly marked.
7. 1.4 Operate chapter by chapter in sequence.
7.2 civilized construction management measures
7.2. 1 Establish and improve the civilized construction management system and implementation measures, and establish a clear reward and punishment system. Adhere to regular inspection, regular appraisal, clear rewards and punishments, and implement the responsibility system layer by layer, so that the site can maintain a high level of civilized construction.
7.2.2 The foreman in charge of the construction work area must pay attention to civilized construction, and it is forbidden to use the package as escrow. It is necessary to clarify the responsible department of civilized construction. The person in charge of construction should pay equal attention to civilized construction and safe construction, and carefully run through the whole construction process.
7.2.3 The foreman of the work area shall cooperate with the supervision engineer and the owner to conduct regular inspection and supervision on the civilized construction of this project, and find and solve problems.
Attachment 1:
General special card for dangerous point control system
Preventive measures for dangerous points
1. Failure to wear safety helmet correctly when entering the site 1. When entering the site, you should concentrate and walk carefully.
2. Wear a helmet and a hat belt.
3. It is forbidden to sit, step on the helmet or use the helmet for other purposes.
2. Don't wear your seat belt when working high above the ground. For operations over two meters, fasten your seat belt and hang it in a solid and reliable place above.
2. Use the seat belt carefully, check it at any time, and replace it in time if there is any problem.
3. Drink 1 and enter the construction site. Anyone who enters the construction site is forbidden to drink alcohol.
2. No one is allowed to enter the scene after drinking for any reason.
4. Without three-level safety education, I don't know the operation knowledge of safety protection 1. Strictly implement the three-level safety education system of the company, project management department and team.
2. Strict examination system, no fraud.
3. Clear the safety responsibilities and necessary safety knowledge as well as the characteristics of the site.
5. Construction without safety technical measures or disclosure 1. All construction projects must have safety measures, and can only be started after disclosure.
2. Construction personnel have the right to refuse the construction without safety measures or safety disclosure.
3. Construction personnel shall strictly abide by the scheme and safety measures, and shall not change them at will. If there is any mistake in the scheme or measures, it should be resolved through consultation with technicians in time.
6. There are major mistakes in safety technical measures. 1. Editors should have a high sense of responsibility and a rigorous and prudent scientific attitude.
2. The approver should be strict and meticulous, and do a good job in examination and approval.
3. It is strictly prohibited to implement without approval.
7. The safety facilities are not perfect and the working environment is unsafe, and no measures have been taken. 1. Improve the working environment with safety facilities as required; Otherwise, it is forbidden to arrange construction, and workers have the right to refuse construction.
2. The measures taken are reasonable and reliable according to local conditions.
8. Mechanical equipment is not overhauled as planned, and it runs in spite of illness 1. Construction machines and tools should be in good working condition, and it is forbidden to work with diseases.
3. Strictly implement the machinery management system and carry out regular maintenance and repair.
9. Illegal command 1 is strictly prohibited.
2. Everyone has the responsibility and power to stop illegal command.
3. Construction personnel have the right to refuse to direct construction in violation of regulations.
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2. Carry out the construction in strict accordance with the technical disclosure, and do not change it without authorization.
1 1. Irresponsible work and dereliction of duty
1. Staff at all levels should focus on their duties.
2. It is forbidden to be careless and distracted.
12. Improper use of labor protection articles 1. Familiar with the use of labor protection articles and protective articles.
2. Correct use in the building.
3. Regular inspection, maintenance and safekeeping of protective equipment.
13. Unauthorized removal and misappropriation of safety devices and facilities 1. It is strictly prohibited to dismantle and misappropriate safety devices and facilities without authorization.
2. If it needs to be removed due to construction, it shall obtain the consent of the original installation unit.
3. After the construction, restore the original condition.
14. If the dangerous operation project fails to handle the safety construction operation ticket 1 and the adjacent live-line operation, the operation shall be carried out according to the operation procedures and safety technical measures shall be implemented.
2. The staff should be clear about the operation ticket, and the construction should be carried out according to the requirements.