CN107929972B - Rescue method for power transmission line overhead working personnel after pole tower falls down - Google Patents
Rescue method for power transmission line overhead working personnel after pole tower falls down Download PDFInfo
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- CN107929972B CN107929972B CN201711191150.5A CN201711191150A CN107929972B CN 107929972 B CN107929972 B CN 107929972B CN 201711191150 A CN201711191150 A CN 201711191150A CN 107929972 B CN107929972 B CN 107929972B
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
- A62B35/0043—Lifelines, lanyards, and anchors therefore
- A62B35/005—Vertical lifelines
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
- A62B35/0043—Lifelines, lanyards, and anchors therefore
- A62B35/0075—Details of ropes or similar equipment, e.g. between the secured person and the lifeline or anchor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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Abstract
The invention discloses a rescue method for a power transmission line overhead worker, which solves the problem of heavy weight carried by a climbing tower in the prior art, has the beneficial effects of reducing the workload of rescue workers and rapidly realizing rescue, and comprises the following steps: the rescue method for the pole tower of the power transmission line overhead operation personnel after falling down comprises the steps that after the operation personnel fall down from the power transmission pole tower, an auxiliary pedal is taken out, the auxiliary pedal is connected with a stress point of a safety belt, an annular ring is arranged at the bottom of the auxiliary pedal, feet of the person are placed in the annular ring to be supported, and the person is supported; the rescue personnel include two at least people, and one of them rescue personnel climbs to the eminence, makes stranded operation personnel get rid of poverty through pulling the atress transfer, and this rescue personnel accompany stranded operation personnel together to descend through upper segment rescue rope, simultaneously, another rescue personnel set up lower segment rescue rope in the lower position of shaft tower, and the rescue personnel accompany stranded operation personnel secondary decline through lower segment rescue rope.
Description
Technical Field
The invention relates to the field of power transmission lines, in particular to a rescue method for a power transmission line after a pole tower of an overhead operator falls down.
Background
The works such as installation construction, operation maintenance and overhaul of the power transmission line all need the operators to go up and down the pole tower, and the high-altitude operation is performed on the pole tower, the lead and the insulator. The power transmission line operation has the characteristics of large overhead workload, complex and changeable environment, more manual operation, high labor intensity, high risk degree and the like. In recent years, the ultra-high voltage and ultra-high voltage power grid of China is built and put into production on a large scale. The ground distance is high, and the maximum transmission tower reaches more than 270 meters; the transmission channel has complex path environment, and the rescue modes of conventional high-altitude operation tools, high-altitude rescue vehicles and the like are often limited, so that the rescue difficulty is increased. According to the present many accident cases, when working at high altitude, the staff is trapped in the conditions such as heatstroke, losing temperature, trauma and the like and cannot get up to the vehicle by climbing to nearly hundred meters high altitude through the side foot nails of the tower, and can not carry heavy and large rescue tools and tools, the equipment to be carried is heavy, and the weight reaches 20 jin or more, and the transmission tower is higher, so that more physical force and energy can be wasted during climbing, the climbing time is prolonged, the rescue time is influenced, and the staff needs to be transferred to a safe place as soon as possible, so that the rescue time is very urgent. In addition, rescue on the existing transmission line and the transmission tower is needed to be carried out by power failure, so that once the operation is stopped in an emergency due to rescue, a large amount of transmission power loss (power failure) or a large amount of load transfer is caused, the power grid structure is damaged, the safe and stable operation of the power grid is seriously influenced, and further the large-area power failure of the power grid is possibly caused, the normal production and living order is greatly influenced, and the harmony, safety and stability of society are endangered.
At present, the rope rescue technology in the field of industrial rescue at home and abroad can better solve the problem.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a rescue method for a power transmission line overhead worker, which can reduce the weight required to be carried by rescue workers, match the rescue workers in sections, shorten the time for rescue, avoid the suspension injury to a human body, and realize self-rescue or other auxiliary rescue, and has high rescue speed.
The rescue method after the pole tower of the power transmission line overhead operation personnel falls down comprises the following specific scheme:
a rescue method for a power transmission line overhead worker after a pole tower falls down comprises the following steps:
1) After an operator falls from the transmission tower, taking out the auxiliary pedal, connecting the auxiliary pedal with a stress point of the safety belt, arranging an annular ring at the bottom of the auxiliary pedal, placing feet of the operator in the annular ring for supporting, and supporting the operator;
2) The rescue personnel include two at least people, and one of them rescue personnel climbs to the eminence, makes stranded operation personnel get rid of poverty through pulling the atress transfer, and this rescue personnel accompany stranded operation personnel together to descend through upper segment rescue rope, simultaneously, another rescue personnel set up lower segment rescue rope in the lower position of shaft tower, and the rescue personnel accompany stranded operation personnel secondary decline through lower segment rescue rope.
According to the rescue method, the hooks are arranged at the tops of the auxiliary pedals so as to facilitate the fixation of the auxiliary pedals and the safety belt, the trapped operators can support the body effectively through the auxiliary pedals, standing can be achieved, the safety belt is prevented from tightening the legs of the operators, the operators are cooperated in a separated mode, the characteristics of the transmission tower are fully utilized, the weight carried by the high-altitude operators when climbing the transmission tower is only the upper section, the weight carried by the operators is obviously reduced, the quick climbing of the operators is facilitated, the life safety is effectively guaranteed, and the length of the lower-section rescue rope is longer than that of the upper-section rescue rope, so that the rescue time is further guaranteed.
The specific steps in the step 3) are as follows:
1-1) carrying an upper rescue rope and protective station equipment by a rescue worker A, climbing a pole tower to a position above a trapped operator trapped position, and performing self-protection;
1-2) carrying lower rescue ropes and protective station equipment by a rescue worker B, climbing a pole tower to a position where the middle section of the pole tower is suitable for being used as a protective station, and performing self-protection;
1-3) a rescue worker A and a rescue worker B respectively use flat belts and main locks to erect a protection station at a proper position of a pole tower, the flat belts and the main locks are all 4, the protection station is stable on the pole tower and cannot slide under the action of wind force through the fixation of the flat belts, one protection station comprises two protection points, one protection point is fixed by winding of the two flat belts, and the main lock is sleeved at the bottom of the flat belts;
1-4) respectively tying two double-8-shaped knots at the middle section of the rescue rope by the rescue personnel A and the rescue personnel B, respectively hanging the two double-8-shaped knots (about 30CM in the middle distance) into a main lock of a protection station, and locking a door; rope ends at two ends are respectively knotted, then the rescue rope is put down, a double-rope system is adopted, and the rescue rope is divided into a rescue main rope and a protection rope in a knotting mode;
1-5) the rescue worker A releases the self-protection equipment;
1-6) the rescue worker A descends to the upper position of the trapped worker, the body load of the trapped worker is transferred, the suspension protection rope of the trapped worker is relieved, and the rescue worker A and the trapped worker descend to the position of the rescue worker B through the upper rescue main rope and the first single safety rope;
1-7) transferring the rescue personnel A to a lower rescue main rope and a lower safety rope;
1-8) rescue worker A descends to the ground with the trapped worker.
In the above steps, the trapped worker can be lowered together with the rescue worker A by transferring the body load of the trapped worker by
The rescue worker A in the step 1-1) also carries at least two descent protectors and at least two fall arresters.
The specific steps of the steps 1-5) are as follows: the rescue worker A installs the falling protector and the anti-falling device on the upper section rescue main rope and the upper section safety rope respectively, pushes the anti-falling device to the highest point, transfers the body load to the falling protector and releases the self-protection equipment after locking.
The specific steps of the steps 1-6) are as follows:
1-6-1) the rescue worker A accompanies the trapped worker to descend to the position of the lower rope protection station, locks the descending protector, pushes the falling protector to the highest, and grabs the rescue rope and the safety rope below;
1-6-2) respectively installing another set of descent protectors and anti-falling devices, tightening the descent protectors on the rescue ropes below and then locking;
1-6-3) releasing the descending protector on the upper rescue rope to a stress state of the descending protector at the lower section, and then removing the descending protector at the upper section;
1-6-4) after pushing the lower fall arrester high, removing the upper fall arrester.
After the step 1-8) is finished, the rescue personnel D receives the seat belt, so that the trapped personnel takes a W-shaped posture, and the prevention treatment of the suspension wound of the seat belt is carried out on the trapped personnel, so that rescue is completed.
And the intersection of the rope tail of the upper-section rescue main rope and a lower-section protection station made by a rescue worker B is reserved with a rope length with a set length, and the lower-section rescue main rope is contacted with the ground.
In order to overcome the defects in the prior art, the invention also provides another rescue method for the power transmission line overhead operation personnel after the pole tower falls down, and the rescue method is carried out under the condition that trapped personnel do not carry auxiliary pedals, and comprises the following steps:
1) The operator falls from the transmission tower;
2) The rescue workers comprise at least two people, one of the rescue workers climbs to a high position, the auxiliary pedal is taken out and connected with a stress point of the safety belt, an annular ring is arranged at the bottom of the auxiliary pedal, the trapped people place feet of the trapped people in the annular ring for supporting, and the people can be supported; rescue personnel are transferred through lifting stress to enable trapped operators to get rid of the trapped operators, the rescue personnel accompany the trapped operators through the upper rescue rope to descend together, meanwhile, another rescue personnel are provided with the lower rescue rope at the lower position of the pole tower, and the rescue personnel accompany the trapped operators through the lower rescue rope to descend secondarily.
The number of the auxiliary pedals is one or more, and two auxiliary pedals are beneficial to the trapped personnel to be supported better.
When the auxiliary pedal is not used, the auxiliary pedal is fixed with the safety belt, so that the auxiliary pedal is convenient to carry and disassemble.
The auxiliary pedal is made of wear-resistant nylon ropes, and the auxiliary pedal, the safety belt and the rescue ropes are all made of insulating materials.
Compared with the prior art, the invention has the beneficial effects that:
1) The invention avoids damage to human body by assisting pedal arrangement, fully utilizes the characteristics of the pole tower by means of sectional descent, and avoids overweight equipment carried by rescue workers and delays rescue time.
2) According to the invention, rescue is carried out through the double-rope system, so that sudden accidents in the rescue process are avoided, and double protection is realized.
3) The invention can effectively avoid operation under the condition of electrification, improve the reliability and economy of power transmission, meet the requirements of normal production and life of society on electric energy, and has great economic and social benefits.
4) In addition, the rescue method is simple, low in cost and good in applicability, and fills the technical blank of high-altitude emergency rescue of the ultra-high voltage and extra-high voltage transmission lines in China.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application.
FIG. 1 is a schematic diagram of a rescue method of the present invention;
fig. 2 is a schematic diagram of the connection of the rope protection station to the rescue rope.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
As described in the background art, in order to solve the technical problems, the application provides a rescue method for a power transmission line overhead worker after a pole tower falls down.
In an exemplary embodiment of the present application, as shown in fig. 1, a rescue method after a pole tower of a power transmission line overhead operation personnel falls includes:
1) After an operator falls from the transmission tower, taking out the auxiliary pedal, connecting the auxiliary pedal with a stress point of the safety belt, arranging an annular ring at the bottom of the auxiliary pedal, placing feet of the operator in the annular ring for supporting, and supporting the operator;
2) The rescue personnel include two at least people, and one of them rescue personnel climbs to the eminence, makes stranded operation personnel get rid of poverty through pulling the atress transfer, and this rescue personnel accompany stranded operation personnel together to descend through upper segment rescue rope, simultaneously, another rescue personnel set up lower segment rescue rope in the lower position of shaft tower, and the rescue personnel accompany stranded operation personnel secondary decline through lower segment rescue rope.
According to the rescue method, before the rescue is carried out, the power-off treatment is required to be carried out on the power transmission line and the pole tower, the hooks are arranged at the tops of the auxiliary pedals so as to facilitate the fixation of the auxiliary pedals and the safety belt, the trapped operators can effectively support the body through the auxiliary pedals, standing can be achieved, the safety belt is prevented from tightening the legs of the operators, the rescue operators work separately and cooperate, the characteristics of the power transmission pole tower are fully utilized, so that the weight carried by the high rescue operators in climbing the pole tower is only the upper section, the weight carried by the rescue operators is obviously reduced, the quick climbing of the rescue operators is facilitated, the life safety is effectively ensured, and the length of the lower rescue rope is longer than that of the upper rescue rope, and the rescue time is further ensured.
The specific steps in the step 3) are as follows:
1-1) carrying an upper rescue rope and protective station equipment by a rescue worker A, climbing a pole tower to a position above a trapped operator trapped position, and performing self-protection;
1-2) carrying lower rescue ropes and protective station equipment by a rescue worker B, climbing a pole tower to a position where the middle section of the pole tower is suitable for being used as a protective station, and performing self-protection;
1-3) a rescue worker A and a rescue worker B respectively use flat belts and main locks to erect a protection station at a proper position of a pole tower, the flat belts and the main locks are all 4, and through fixing the flat belts, as shown in fig. 2, the protection station is stable on the pole tower and cannot slide under the action of wind force, one protection station comprises two protection points, one protection point is wound and fixed by two flat belts, and the main lock is sleeved at the bottom of the flat belts;
1-4) respectively tying two double-8-shaped knots at the middle section of the rescue rope by the rescue personnel A and the rescue personnel B, respectively hanging the two double-8-shaped knots (about 30CM in the middle distance) into a main lock of a protection station, and locking a door; rope ends at two ends are respectively knotted, then the rescue rope is put down, a double-rope system is adopted, and the rescue rope is divided into a rescue main rope and a protection rope in a knotting mode;
1-5) the rescue worker A releases the self-protection equipment;
1-6) the rescue worker A descends to the upper position of the trapped worker, the body load of the trapped worker is transferred, the suspension protection rope of the trapped worker is relieved, and the rescue worker A and the trapped worker descend to the position of the rescue worker B through the upper rescue main rope and the first single safety rope;
1-7) transferring the rescue personnel A to a lower rescue main rope and a lower safety rope;
1-8) rescue worker A descends to the ground with the trapped worker.
In the above steps, the trapped worker can be lowered together with the rescue worker A by transferring the body load of the trapped worker by
The rescue worker A in the step 1-1) also carries at least two descent protectors and at least two fall arresters.
The specific steps of the steps 1-5) are as follows: the descending protector and the anti-falling device are respectively arranged on the upper section rescue main rope and the upper section safety rope by the rescue personnel A, the anti-falling device is pushed to the highest point by the rescue personnel A, and after the body load is transferred to the descending protector and locked, the self-protection equipment is released.
The specific steps of steps 1-6) are as follows:
1-6-1) the rescue worker A accompanies the trapped worker to descend to the position of the lower rope protection station, locks the descending protector, pushes the falling protector to the highest, and grabs the rescue rope and the safety rope below;
1-6-2) respectively installing another set of descent protectors and anti-falling devices, tightening the descent protectors on the rescue ropes below and then locking;
1-6-3) releasing the descending protector on the upper rescue rope to a stress state of the descending protector at the lower section, and then removing the descending protector at the upper section;
1-6-4) after pushing the lower fall arrester high, removing the upper fall arrester.
After the step 1-8), the rescue personnel D receives the injury, so that the trapped personnel takes a W-shaped posture, and the prevention treatment of the suspension injury of the safety belt is carried out on the trapped personnel, thereby completing rescue.
Rope length with set length is reserved at the intersection of the rope tail of the upper-section rescue main rope and a lower-section protection station made by a rescue worker B, and the lower-section rescue main rope is contacted with the ground.
In order to overcome the defects in the prior art, the invention also provides another rescue method for the power transmission line overhead operation personnel after the pole tower falls down, and the rescue method is carried out under the condition that trapped personnel do not carry auxiliary pedals, and comprises the following steps:
1) The operator falls from the transmission tower;
2) The rescue workers comprise at least two people, one of the rescue workers climbs to a high position, the auxiliary pedal is taken out and connected with a stress point of the safety belt, an annular ring is arranged at the bottom of the auxiliary pedal, the trapped people place feet of the trapped people in the annular ring for supporting, and the people can be supported; rescue personnel are transferred through lifting stress to enable trapped operators to get rid of the trapped operators, the rescue personnel accompany the trapped operators through the upper rescue rope to descend together, meanwhile, another rescue personnel are provided with the lower rescue rope at the lower position of the pole tower, and the rescue personnel accompany the trapped operators through the lower rescue rope to descend secondarily.
The number of auxiliary pedals is one or more, and two auxiliary pedals are beneficial to the trapped personnel to be supported better.
When the auxiliary pedal is not used, the auxiliary pedal is fixed with the safety belt, so that the auxiliary pedal is convenient to carry and disassemble.
The auxiliary pedal is made of wear-resistant nylon ropes, and the auxiliary pedal, the safety belt and the rescue ropes are all made of insulating materials.
In the above-mentioned rescue method, the first-mentioned second-mentioned first-mentioned second,
1. preparation work arrangement
(1) Clear rescue scheme: and performing on-site investigation, and determining an electric field feeding mode and a rescue scheme for rescue by equipotential live working according to on-site investigation results.
(2) Determining the combination of operators and labor: work responsible persons, special guardianship persons, on-tower rescue workers and ground rescue workers who participate in rescue are designated.
(3) Programming, approving a rescue scheme: and (5) compiling a rescue scheme and fulfilling approval procedures. Before rescue, all rescue workers should clearly define the working contents, working flows, safety measures and dangerous points in work, and fulfill confirmation procedures.
(4) Determining the object requirements required by the operation: (1) the selected live working tools, specifications, quantity and selection are correct, the preventive test labels are complete, and the live working tools are qualified through appearance inspection and electrical detection in the effective period. (2) The specification and the reading of the selected detection instrument are correct, the measuring range meets the requirements, and the effective period is reached. (3) The specification of the selected materials is correct, and the quality meets the requirements.
(5) Preparing tools: the tools meeting the requirements are prepared according to the electric field feeding mode and the rescue scheme (three common electric field feeding modes are a two-span, two-short and three-way mode, a rope ladder mode and a swing mode respectively, and the required tools are shown in tables 1-3).
Table 1 Cross-two-short three-feed electric field tool
Table 2 tools for electric field by rope ladder method
Table 3 tool for swing method power-on place
Personnel requirements
(1) The mental state of the rescue personnel should be good.
(2) Qualification of staff: (1) the physician identifies the disease which can prevent the work. (2) The electric shock emergency protection device has necessary electrical knowledge and hot-line work skills, necessary safe production knowledge and is used for learning the emergency protection method, in particular to electric shock emergency. (3) Hold the live working training pass and be approved by the production unit to be on duty.
2. Dangerous point analysis and countermeasure under condition of line power failure and electrification
2.1 preventing automatic reclosing of the Circuit
(1) Before the work starts, the work responsible person should contact with the on-duty regulation personnel to apply for stopping automatic reclosing. After a command is received to schedule that the line has been disabled for reclosing and permit the start of the operation, the operation may begin. And reporting to on-duty control personnel in time after the live working is finished.
(2) In the live working process, if equipment is suddenly powered off, operators should see that the equipment is still live. The work responsible person should contact with the dispatch as soon as possible, and the on-duty control personnel must not carry out forced power transmission before contacting with the work responsible person.
2.2 preventing from mistakenly climbing the pole tower:
(1) Checking the line name, the tower number, the color code and the phase: xx kV xx line, tower number xx; color code: x; x phase (x phase). The work responsible person confirms that the work place is correct, and the person can log on the tower to work.
2.3 protection against weather mutations
(1) Live working should be performed in good weather. If thunder and lightning (hearing thunder and seeing lightning), snow, hail, rain, fog and the like are encountered, live working is not performed. When the wind power is greater than 5 levels or the humidity is greater than 80%, hot-line work is generally not suitable.
2.4 preventing personal electric shock
(1) The rescue workers and the rescue workers on the tower are required to wear the complete shielding clothes qualified in test, and all parts are well connected. The rescue personnel must wear the complete set of flame-retardant underwear in the shielding clothes. Before working, the resistance of the shielding clothes is detected by a universal meter, and the resistance between the farthest ends of the shielding clothes is not more than 20 omega.
(2) Live working tools should be contained in special tool bags during transportation to prevent moisture and damage. When the insulating tool enters a working site, the used live working tool is placed on a damp-proof canvas to prevent the insulating tool from being polluted and damped in use. Before use, the test label is carefully checked to be fully qualified, and the test label is in the valid period of the preventive test. The tool is confirmed to be free from damage, damp, deformation and failure, otherwise, the tool is forbidden to be used. And the insulating tool is wiped and checked by using a dry and clean towel, segmented insulating detection (the electrode width is 2cm and the interelectrode width is 2 cm) is carried out by using a 5000V insulating megger, the insulating resistance is not less than 700MΩ, and clean and dry gloves are required to be worn when the insulating tool is operated.
(3) During live working, rescue workers and rescue workers on towers pay attention to reduce the operation movement range. The working responsible person should strictly monitor the equipotential or the rescue personnel on the tower keeps enough safe distance with the grounding body or the charged body (500 kV is not smaller than 3.2m, 1000kV single-loop roadside phase is not smaller than 6.8m, the middle phase is not smaller than 4.5m, and +/-660 kV is not smaller than 6.8 m).
(4) The effective length of the 500kV line insulation operating rod is not smaller than 4m, and the effective insulation length of the insulation bearing tool and the insulation rope is not smaller than 3.7m; the minimum effective insulation length of the 1000kV insulation tool is not less than 6.8m; the + -660 kV is not less than 5.3m; the + -800 kV should not be less than 6.8m.
(5) Before the rescue workers enter and exit the electric field, the connection of each part of the shielding clothes should be checked again to confirm good, and the permission of the work responsible person should be obtained.
(6) Combination gap when rescue personnel pass in and out of electric field: 500kV is not less than 3.9m;1000kV side phase is not smaller than 6.7m, and middle phase is not smaller than 6.9m; the + -660 kV is not less than 4.3m; the + -800 kV should not be less than 6.6m. The minimum safe distance is kept between the electrode and the charged body when the potential is transferred: 500kV was 0.4m and 1000kV was 0.5m.
(7) And a megameter and a universal meter are used correctly, wiring is correct, and high-voltage electric shock generated in use is prevented.
2.5 preventing high altitude fall
(1) Before a rescue worker on the tower climbs the tower, checking whether the root, the foundation and the stay wire of the tower are firm or not and whether the foot nails (or the climbing ladders) are complete or not; when working aloft, the safety belt is hung on the firm member of the pole tower, and the safety belt is prevented from being damaged by sharp objects. During operation and transposition, the hand-held components should be firm and the protection of the safety belt should not be lost. Before working on the cross arm, the firm connection of the cross arm should be checked, and the safety belt should be tied on the firm member during the checking.
(2) Before a rescuer climbs on the stepladder or the insulating rope ladder, the ground personnel shall tighten the insulating pull rope or press the rope ladder, and the rescuer shall perform impact test on the stepladder or the rope ladder.
2.6 preventing high-altitude falling objects
(1) Tool bags are used in high-place operation, and larger tools are fixed on firm components and are not randomly placed.
(2) Tools, materials and the like used by high-altitude rescue workers are arranged in the tool bag, and the hand-held tools are bound by binding ropes so as to prevent falling. The transmission object should use ropes, the ropes must not be thrown, the rope buckles must be firmly tied, and the transmission ropes should be hung on a firm framework of the iron tower.
(3) The field operator must wear the helmet correctly. The ground rescue workers cannot stand vertically below the operation site, and irrelevant people cannot pass or stay in the high-altitude falling area.
In the field, from the whole rescue point of view, the method concretely comprises the following steps:
1, the rescue workers enter a working site to reach the proper position of the pole tower.
And 2, measuring the wind speed and the humidity on site, checking the information of the tower, and reporting to the dispatching to apply for reclosing of the shutdown line.
And 3, after the dispatching permission is obtained, the rescue responsible person summons the rescue team members, and the rescue scheme and task division work are determined, and the rescue personnel are confirmed.
4 three common electric field feeding modes are adopted to carry out operation
4.1 across two short three method (DC line does not use this method)
(1) Ground preparation work
(1) Carrying canvas to a proper position on a working site by ground rescue workers and tower rescue workers, paving the canvas, carrying the canvas by tools and arranging the canvas neatly.
(2) Wiping the insulating operating rod by ground rescue workers by using a dry towel; the ground rescue workers and the tower rescue workers cooperate with each other to detect the insulating backup protection rope, the insulating operation rod and the like by using a 5000V insulating rocking meter, and the ground rescue workers report the rocking detection result to rescue responsible persons.
(3) The ground rescue workers assist rescue workers and tower rescue workers to wear the shielding clothes, a universal meter is used for measuring the resistance between the two farthest end points of the shielding clothes, and a measurer reports the measurement result to a rescue responsible person; the rescue responsible person checks the connection condition of the shielding clothes.
(4) After the ground rescue personnel check the poor insulator zero detector to be good, the poor insulator zero detector is arranged on the insulating operating rod, so that the poor insulator zero detector is reliably connected.
(2) Rescue personnel on tower climb pole tower
(1) Before boarding the tower, the rescue responsible person checks the connection condition of the shielding clothes of the rescue workers on the tower again, and after checking, the rescue responsible person takes a command to start to board the tower.
(2) When a rescue worker on the tower walks to the working phase cross arm with an insulating operation rod (with an inferior insulator zero detector), the double names and color codes of the lines are checked again, and the rescue worker can enter the working phase cross arm. And (5) binding a safety belt at a proper position, and checking the connection condition of the insulator hardware of the pole tower.
(3) Insulator zero detection
(1) The on-tower rescue personnel detects the insulator string piece by using the inferior insulator detector, the detection sequence is that the insulator string starts to the cross arm side sequentially from the lead end, if the insulator meets a low value or zero value, the insulator should be repeatedly detected, and when the insulator is determined to be the zero value or the low value, the reporting work responsible person makes a record.
(2) The number of good insulator sheets in each string is not less than the requirement of regulations (26 sheets are 500kV and 40 sheets are 1000 kV).
(4) Binding insulation backup protection rope
(1) The rescue workers carry the insulating backup protection rope to climb the tower to the insulator hanging point, and the insulating backup protection rope is bound.
(2) The rescue workers on the tower assist the rescue workers to check the firm binding condition of the insulating backup rope, and report the checking condition to a working responsible person after confirming that the situation is correct.
(5) Entering into strong electric field
(1) The rescue workers apply for entering the insulator string to the work responsible person, and slowly travel from the ground potential to the high potential along the strain insulator string by adopting a 'span two, short and three' method after the rescue workers are permitted.
(2) When a rescue worker approaches the voltage-sharing shielding ring to a certain distance (500 kV is 0.4m,1000kV is 0.5 m), the equipotential is applied to a rescue responsible person, and after a command that the rescue responsible person permits to enter a strong electric field is obtained, the rescue worker rapidly grabs the insulator string shielding ring, so that the equipotential action is completed.
(6) Rescue workers do self-protection and carry tools to run to an operation point;
(7) Carrying out rescue work according to the steps;
(8) After the rescue is completed, returning the rescue personnel B;
(9) Exit from strong electric field:
(1) the rescue workers check tools, materials and the like which are not left on the guide wire and the shielding ring, report to the rescue responsible person, and make the rescue responsible person exit the strong electric field after confirming that the rescue responsible person is correct.
(2) When a rescue worker is at a certain distance from the electrified body (500 kV is 0.4m,1000kV is 0.5 m), the rescue worker applies for exiting the electric field, and after the rescue worker is permitted by a rescue responsible person, the rescue worker rapidly releases the insulator string shielding ring to finish exiting the action of the strong electric field.
(3) Rescue workers slowly move from high potential to ground potential in a 'two-span, two-short and three' -span mode and exit the electric field.
(10) Inspection site and personnel lower tower
(1) The rescue manager checks that no tools, materials and the like remain on the pole tower and the lead, and orders the rescue manager on the tower to get off the tower.
(2) Rescue workers on the tower carry an insulating backup protection rope and rescue tools to get off the tower.
4.2 rope ladder method
(1) Ground preparation work
(1) Carrying canvas to a proper position on a working site by ground rescue workers and tower rescue workers, paving the canvas, carrying the canvas by tools and arranging the canvas neatly.
(2) The ground rescue workers mutually cooperate with a 5000V insulating rocker to shake and measure the insulating ropes, the insulating rope ladders and the like, and report the results to rescue responsible persons.
(3) The ground rescue workers assist rescue workers and tower rescue workers to wear the shielding clothes, a universal meter is used for measuring the resistance between the two farthest end points of the shielding clothes, and a measurer reports the measurement result to a rescue responsible person; the rescue responsible person checks the connection condition of the shielding clothes.
(2) Tower climbing for rescue personnel on tower
(1) Before boarding the tower, the rescue responsible person checks the connection condition of the shielding clothes of the rescue workers on the tower again, and after checking, the rescue responsible person takes a command to start to board the tower.
(2) When a rescue worker on the tower carries the insulated transmission rope to the operation phase cross arm, the double names and the color codes of the lines are checked again, the rescue worker can enter the operation phase cross arm, a safety belt is tied, and the insulated transmission rope is hung at a proper position.
(3) Transmission tool
(1) Ground rescue workers fix the rope ladder on the insulating transmission rope and transmit the rope ladder to a proper position, and tower rescue workers fix the rope ladder at a proper position of the cross arm.
(4) Rope ladder for climbing
(1) The ground rescue workers make backup protection by using the insulating transmission rope, and the rescue workers safety belt is reliably connected with the insulating transmission rope.
(2) The ground rescue workers test the pressure of the insulating rope ladder, and report the safe and reliable confirmation to the rescue responsible person.
(3) After confirming that the rope ladder is reliable, the rescue personnel begin to climb the rope ladder.
(5) Entering into strong electric field
(1) When a rescue worker climbs the rope ladder to a certain distance (500 kV is 0.4m,1000kV is 0.5 m), the equipotential is applied, and after the permission of a rescue responsible person is obtained, the rescue responsible person rapidly grabs the lead to complete the equipotential action.
(2) After the rescue workers sit on the lead, the safety belt is pricked, the insulated transmission rope is untied and fixed on the lead, and the rescue workers are reported to the rescue workers.
(6) The rescue workers prick the double-safety belt and carry tools to run to an operation point;
(7) Carrying out rescue work according to the steps;
(8) The rescue workers carry tools to return after wiring;
(9) Exit from strong electric field
(1) The rescue workers check tools, materials and the like which are not left on the guide wire and the shielding ring, report to the rescue responsible person, and make the rescue responsible person exit the strong electric field after confirming that the rescue responsible person is correct.
(2) The rescue workers fix the insulated transmission rope at the proper position of the safety belt in a backup protection mode, the safety belt tied on the lead is released, and the rescue workers climb on the rope ladder to get out of the electric field.
(3) When a rescue worker is at a certain distance from the electrified body (500 kV is 0.4m,1000kV is 0.5 m), the rescue worker applies for exiting the electric field, and the rescue worker is quickly separated from the lead after being permitted by a rescue person in charge, completes the action of exiting the strong electric field, and returns to the ground along the insulating rope ladder.
(10) Inspection site and personnel lower tower
(1) The rescue manager checks that no tools, materials and the like remain on the pole tower and the lead, and orders the rescue manager on the tower to get off the tower.
(2) Rescue workers on the tower carry insulating ropes and rescue tools to go off the tower.
4.3 swing method
(1) Ground preparation work
(1) Carrying canvas to a proper position on a working site by ground rescue workers and tower rescue workers, paving the canvas, carrying the canvas by tools and arranging the canvas neatly.
(2) The ground rescue workers mutually cooperate with a 5000V insulation rocking meter to rock and measure insulation tools such as an insulation rope, an insulation swinging rope, an insulation backup protection rope and the like, and report the result to a rescue responsible person.
(3) The ground rescue workers assist rescue workers and tower rescue workers to wear the shielding clothes, a universal meter is used for measuring the resistance between the two farthest end points of the shielding clothes, and a measurer reports the measurement result to a rescue responsible person; the rescue responsible person checks the connection condition of the shielding clothes.
(2) Rescue personnel on tower climb pole tower
(1) Before boarding the tower, the rescue responsible person checks the connection condition of the shielding clothes of the rescue workers on the tower again, and after checking, the rescue responsible person takes a command to start to board the tower.
(2) When a rescue worker on the tower carries the insulated transmission rope to the operation phase cross arm, the double names and the color codes of the lines are checked again, the rescue worker can enter the operation phase cross arm, a safety belt is tied, and the insulated transmission rope is hung at a proper position.
(3) Transmission, suspension, pressure test and boarding ladder
(1) The ground rescue workers use the insulation transmission rope to transmit the 1-2 pulley blocks, the stepladder, the insulation backup protection rope and the insulation swinging rope to the cross arm. The rescue workers on the tower fix the 1-2 pulley blocks at proper positions and check the pulley blocks to ensure firmness; measuring and fixing an insulating swinging rope and a backup protection rope by a rescue worker on the tower; the rescue workers reliably connect the pulley blocks with the stepladder for checking, report the pulley blocks to the rescue responsible person, and make the rescue workers get on the stepladder to prepare an electric field after the rescue responsible person confirms the safety.
(2) The ground rescue workers tighten the 1-2 pulley block insulating pull rope.
(3) The rescue workers hang the insulating backup protection ropes, climb the ladder, report to the rescue responsible person after the impact test is qualified, and let the ground rescue workers loose the pulley block insulating ropes at a uniform speed after the rescue responsible person confirms that the impact test is correct.
(4) Entering into strong electric field
(1) When a rescue worker climbs the rope ladder to a certain distance (500 kV is 0.4m,1000kV is 0.5 m), the equipotential is applied, and after the permission of a rescue responsible person is obtained, the rescue responsible person rapidly grabs the lead to complete the equipotential action.
(2) After the rescue workers sit on the lead, the safety belts are pricked, the insulating backup protection ropes are untied and fixed on the lead, and the safety belts are reported to rescue authorities.
(5) The rescue workers prick the double-safety belt and carry tools to run to an operation point;
(6) Carrying out rescue work according to the steps;
(7) The rescue workers carry tools to return after wiring;
(8) Exit from strong electric field
(1) The rescue workers check tools, materials and the like which are not left on the guide wire, report the tools, materials and the like to the rescue responsible person, and make a command to exit the strong electric field after the rescue responsible person confirms that the tools, materials and the like are not left.
(2) The rescue workers fix the insulating backup protection rope at the proper position of the safety belt, remove the safety belt bound on the lead, and get on the stepladder to get out of the electric field preparation.
(3) When a rescue worker is at a certain distance from the electrified body (500 kV is 0.4m,1000kV is 0.5 m), the rescue worker applies for exiting the electric field, and after the rescue worker is permitted by a work responsible person, the hand of the rescue worker quickly loosens the lead and exits the strong electric field.
(4) The ground rescue workers rapidly pull the insulating pull ropes of the 1-2 pulley blocks to send the rescue workers out of the strong electric field.
(9) Inspection site and personnel lower tower
(1) The rescue workers on the tower are bound with 1-2 pulley blocks, a stepladder, an insulating backup protection rope and an insulating swing rope by using the insulating transmission rope, and the rescue workers on the tower are transmitted to the ground by the rescue workers on the ground.
(2) The rescue manager checks that no tools, materials and the like remain on the pole tower and the lead, and orders the pole tower and the rescue manager to get off the pole tower.
(3) Rescue workers on the tower carry insulation transmission ropes and rescue tools to go down the tower.
5 ending the rescue
The ground rescue workers tidy rescue tools, and rescue responsibility people report and dispatch to apply for ending rescue.
In addition, the trapped operators can also be rescued after power failure, and the rescue scheme is as follows:
1, a work licensor reports a power failure of a line to a dispatching and requests rescue;
2 rescue workers are in place. The rescue person in charge makes a rescue plan, confirms the rescue plan and the task division, and confirms the rescue personnel. Finishing tools: rescue tools, electroscope with corresponding voltage level qualified by test, grounding wires, insulating gloves, rope ladders, backup protection ropes and the like; the single-circuit line (direct current line monopole) of the double-circuit line on the same tower is powered off, and a complete shielding suit, a universal meter and an insulating electrodeless rope loop which are qualified in test are prepared.
3 preventing from mistakenly climbing into the live pole tower or mistakenly entering into the live side cross arm
(1) Permit (Single circuit)
(1) Before rescue, all rescue workers face one side of the iron tower number plate, and rescue charge staff are responsible for waiting for rescue tasks and dividing the workers into work;
(2) rescue workers respectively and briefly recite rescue works born by the individuals, and the rescue workers confirm that the rescue workers do not have errors;
(3) before boarding, a rescuer checks the line name, the iron tower number and the color code (X kV X line, color code: X) and recites in loud sound;
(4) after the rescue responsibility division person checks the system without errors, the rescue person can get on the tower;
(5) after the rescue workers reach the preset position, the self-protection is performed, the qualified electroscope is used, the insulation gloves are worn, the grounding wire is immediately installed after no voltage is detected, the connection is reliable, the grounding terminal is connected firstly, the wire end is connected later, and the grounding wire is not directly contacted with hands. The method comprises the steps of carrying out a first treatment on the surface of the
(6) The rescue staff reports the ground wire hung to the rescue responsible person that-! After the inspection of the rescue responsible person is finished, the rescue responsible person is instructed to start rescue.
(2) Permit identification (double circuit)
(1) Before rescue, all rescue workers face one side of the iron tower number plate, and rescue charge staff are responsible for waiting for rescue tasks and dividing the workers into work; and clearly indicates the position of the power failure line;
(2) rescue workers respectively and briefly recite the contents of the rescue responsible person and the rescue tasks born by the individuals, and confirm that the rescue responsible person is free of errors;
(3) before boarding, a rescuer checks the line name, the iron tower number and the color code (X kV X line, color code: X) and recites in loud sound;
(4) after the rescue responsible person checks the check, the rescue responsible person can get on the tower;
(5) when the rescue workers log on the cross arm respectively, and horizontally straighten a hand arm to express the direction of the power failure line, the rescue responsible person checks the line name and the color code on the line tower number plate, after making the permission gesture and issuing the command that the upper, middle and lower phases can enter the x kV x line cross arm, rescue workers can enter the power failure line side cross arm;
(6) after the rescue workers are in place, personal protection is achieved, a qualified electroscope is used, an insulating glove is worn, the grounding wire is immediately installed after no voltage is detected, connection is reliable, the grounding end is connected firstly, the lead end is connected later, and the grounding wire is not directly contacted with hands. The method comprises the steps of carrying out a first treatment on the surface of the
(7) The rescue staff reports the ground wire hung to the rescue responsible person that-! After the inspection of the rescue responsible person is finished, the rescue responsible person is instructed to start rescue.
4, the personnel at high altitude and on the ground cooperate with each other to carry out rescue work;
the rescue method has the steps consistent with the operation steps under the electrified condition.
5 completion of rescue mission
8, the rescue responsible person confirms that no tools, materials and the like remain on the lead and the insulator string, and makes the ground wires hung at the two ends of the working section be removed, the lead ends are removed firstly when the ground wires are removed, then the ground ends are removed, hands do not need to be in direct contact with the ground wires, and the towers are returned to the ground after confirming that no remaining objects exist on the towers and the lead;
1.11, reporting the end of rescue work to a work licensor by a rescue responsible person;
1.12 work licensees report the end of work to the dispatch, apply for the power transmission.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (8)
1. The rescue method for the pole tower of the power transmission line overhead operation personnel after falling is characterized by comprising the following steps of:
1) After an operator falls from the transmission tower, taking out the auxiliary pedal, connecting the auxiliary pedal with a stress point of the safety belt, arranging an annular ring at the bottom of the auxiliary pedal, placing feet of the operator in the annular ring for supporting, and supporting the operator;
2) The rescue workers comprise at least two people, one of the rescue workers climbs to a high position, the trapped workers are released by lifting and stress transfer, the rescue workers descend together with the trapped workers through upper-stage rescue ropes, and meanwhile, the other rescue workers are provided with lower-stage rescue ropes at the lower position of the pole tower, and the rescue workers descend for the second time through the lower-stage rescue ropes;
the step 2) further comprises: the rescue workers A and B respectively tie two double-8-shaped knots at the middle section of the rescue rope, respectively hang the two double-8-shaped knots into a main lock of the protection station, and lock the door; rope ends at two ends are respectively knotted, then the rescue rope is put down, a double-rope system is adopted, and the rescue rope is divided into a rescue main rope and a protection rope in a knotting mode;
the specific steps in the step 2) are as follows:
1-1) carrying an upper rescue rope and protective station equipment by a rescue worker A, climbing a pole tower to a position above a trapped operator trapped position, and performing self-protection;
1-2) carrying lower rescue ropes and protective station equipment by a rescue worker B, climbing a pole tower to a position where the middle section of the pole tower is suitable for being used as a protective station, and performing self-protection;
1-3) the rescue workers A and B respectively erect a protection station at a proper position of the pole tower by using flat belts and main locks;
1-4) respectively tying two double 8-shaped knots at the middle section of the rescue rope by the rescue personnel A and the rescue personnel B, respectively hanging the two 8-shaped knots into a main lock of a protection station, and locking a door; rope ends at two ends are respectively knotted, then the rescue rope is put down, a double-rope system is adopted, and the rescue rope is divided into a rescue main rope and a protection rope in a knotting mode;
1-5) the rescue worker A releases the self-protection equipment;
1-6) the rescue worker A descends to the position above the trapped worker, the body load of the trapped worker is transferred, the suspended protective ropes of the trapped worker are removed, and the rescue worker A and the trapped worker descend to the position of the rescue worker B through the upper rescue main rope and the upper protective rope;
1-7) transferring the rescue personnel A to a lower rescue main rope and a lower protection rope;
1-8) rescue worker A descends to the ground with the trapped worker.
2. The rescue method after the pole and tower of the power transmission line high-altitude operation personnel fall according to claim 1, wherein the rescue personnel A in the step 1-1) further carry at least two descent protectors and at least two fall arresters.
3. The rescue method after the pole tower of the power transmission line overhead working personnel falls off according to claim 2, wherein the specific steps of the steps 1-5) are as follows: the rescue worker A installs the falling protector and the anti-falling device on the upper section rescue main rope and the upper section protection rope respectively, pushes the anti-falling device to the highest point, transfers the body load to the falling protector and releases the self-protection equipment after locking.
4. The rescue method after the pole tower of the power transmission line overhead working personnel falls off according to claim 2, wherein the specific steps of the steps 1-6) are as follows:
1-6-1) the rescue worker A accompanies the trapped worker to descend to the position of the lower rope protection station, locks the descending protector, pushes the falling protector to the highest, and grabs the rescue rope and the protection rope below;
1-6-2) respectively installing another set of descent protectors and anti-falling devices, tightening the descent protectors on the rescue ropes below and then locking;
1-6-3) releasing the descending protector on the upper rescue rope to a stress state of the descending protector at the lower section, and then removing the descending protector at the upper section;
1-6-4) after pushing the lower fall arrester high, removing the upper fall arrester.
5. The rescue method after the pole tower of the power transmission line high-altitude operation personnel falls down according to claim 1, wherein after the step 1-8) is finished, the rescue personnel D receives the power, so that the trapped personnel takes a W-shaped posture, and the prevention treatment of the suspension wound of the safety belt is carried out on the trapped personnel, so that the rescue is completed.
6. The rescue method after the pole tower of the power transmission line high-altitude operation personnel falls down according to claim 1, wherein a rope length with a set length is reserved at the intersection of the rope tail of the upper-stage rescue main rope and a lower-stage protection station made by a rescue person B, and the lower-stage rescue main rope is in contact with the ground.
7. The rescue method after the pole tower of the power transmission line overhead working personnel falls off according to claim 1, wherein the number of the auxiliary pedals is one or more.
8. The rescue method after the pole tower of the power transmission line overhead working personnel falls off according to claim 1, wherein the auxiliary pedal is fixed with the safety belt when not in use.
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| CN111544783A (en) * | 2020-03-26 | 2020-08-18 | 国网浙江省电力有限公司金华供电公司 | High-altitude rescue combination device applied to live working |
| CN113559427A (en) * | 2021-09-06 | 2021-10-29 | 青岛亿和海丽安防科技有限公司 | Emergency escape self-rescue safety rope bag and using method thereof |
| CN115337565B (en) * | 2021-10-29 | 2024-01-23 | 国网山东省电力公司广饶县供电公司 | Anti-falling method for electric power ascending operation |
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| JP2006280869A (en) * | 2005-03-09 | 2006-10-19 | Masatane Hirama | Rescue pole |
| CN106563220A (en) * | 2016-10-27 | 2017-04-19 | 国网山东省电力公司桓台县供电公司 | Tower climbing anti-falling device and falling suspension handling method thereof |
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| JP2006280869A (en) * | 2005-03-09 | 2006-10-19 | Masatane Hirama | Rescue pole |
| CN106563220A (en) * | 2016-10-27 | 2017-04-19 | 国网山东省电力公司桓台县供电公司 | Tower climbing anti-falling device and falling suspension handling method thereof |
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