CN107802974A - A kind of transmission line high-altitude operating personnel wire fall after rescue mode - Google Patents

Abstract

The invention discloses a rescue method for workers who work at heights on a power transmission line after the wires fall, which solves the problems that the trapped workers are prone to suspension syndrome and life risks in the prior art, and has the advantages of preventing the trapped workers from quickly The beneficial effect of getting rid of the danger is as follows: a rescue method for workers who work at heights on power transmission lines after the wires fall. An annular ring is set at the bottom of the pedal, and the person's feet are placed in the annular ring for support, so that the person can be supported; take out the throwing bag and the traction rope, and tie the traction rope to the safety belt; Conductor throwing, so that the throwing bag guides the traction rope to bypass the conductor, and the operator climbs up to the conductor through the short safety rope.

Description

A rescue method for people working at heights on power transmission lines after the wires fall

technical field

The invention relates to the field of power transmission lines, in particular to a rescue method for personnel working at heights on a power transmission line after the wire falls.

Background technique

The installation and construction, operation and maintenance of transmission lines require operators to go up and down the tower, and perform high-altitude operations on the tower, wires, and insulators. The operation of transmission lines has the characteristics of large amount of high-altitude operations, complex and changeable environment, many manual operations, high labor intensity, high degree of danger, and difficult rescue. At present, when operators work on wires, they mainly rely on all-round safety belts and backup The protection rope is used for personal protection, and there is a risk of falling from a high place, which is a high-risk operation. In particular, ultra-high voltage and ultra-high voltage transmission lines with a voltage level of 500kV and above are prone to fall from high places during operation, and the workers are not supported after falling, and are suspended by seat belts, and trapped workers are suspended in the air by seat belts for a long time Suspension trauma (seat belt suspension syndrome) will occur and gradually lose consciousness, coupled with factors such as fear, impact injury and no self-rescue ability, the rescue time is very urgent. In addition, the rescue on the existing transmission lines and transmission towers often requires a power outage for rescue, so once the emergency stop operation due to rescue, it will cause a large amount of transmission power loss (blackout) or a large number of load transfers, causing damage to the grid structure and seriously affecting The safe and stable operation of the power grid may lead to large-scale power outages in the power grid, which will have a great impact on normal production and living order, and endanger social harmony, security and stability.

At present, the rope rescue technology in the field of industrial rescue at home and abroad can better solve this problem.

Contents of the invention

In order to overcome the deficiencies of the prior art, the present invention provides a rescue method for personnel working at heights on power transmission lines after the wire falls. The rescue method can realize rapid self-rescue, avoid suspension trauma to the human body, and can realize self-rescue or other-assisted rescue , The rescue speed is fast.

A specific plan for the rescue method after the conductor of the high-altitude worker on the transmission line falls is as follows:

A method for rescue after the wires of the high-altitude workers on the power transmission line fall, including:

1) After the operator falls, take out the auxiliary pedal and connect the auxiliary pedal with the stress point of the safety belt. A ring is set at the bottom of the auxiliary pedal, and the person's foot is placed in the ring for support, so that the person can supported;

2) Take out the throwing bag and the traction rope, and tie the traction rope to the safety belt; throw the same wire hanging above and the operator, so that the throwing bag guides the traction rope to bypass the wire;

3) The traction rope is connected to the short safety rope, pull the short safety rope across the wire, release the traction rope, tie a knot at the other end of the short safety rope with a figure 8 knot, and pull the short safety rope downward through the knot through which the suture end of the short safety rope passes , so that it is fixed on the wire; the operator returns to the wire by using double-grabbed knots or twisted ropes to ascend.

In the above-mentioned rescue method, a hook is set on the top of the auxiliary pedal to facilitate the fixing of the auxiliary pedal and the seat belt. The operator can effectively support the body through the auxiliary pedal, and can stand up, avoiding the seat belt from causing strangle marks on the human leg , and through the setting of the safety short rope, the trapped operator can climb up by himself, return to the position of the wire, and realize self-rescue. The whole process does not require other people to rescue, and the rescue speed is fast, which effectively guarantees the safety of life.

Described step 3) in the step that double grab knot rises is as follows:

1-1) Take out the short grab knot, use the Prussian grab knot to fix it on the short safety rope, fix it to the belly hanging point of the seat belt with the main lock, and lock the main lock; take out the long grab knot, and use the Prussian grab knot to fix it on the short grab knot on the safety short rope below;

1-2) The operator steps on the long grab knot with one foot, and stands with both hands on the short safety rope; then, the operator holds the short safety rope with one hand, and pushes the upper grab knot to the highest point with the other hand;

1-3) Sit down gently, stress the short knot, repeat several times, and push the long knot to the highest point.

Described step 3) in the step that twisted rope rises is as follows:

2-1) Pull both ends of the safety short rope to the front of the operator's body, and tie the end of the safety short rope without a joint to prevent knotting;

2-2) After the operator hinges the rope with both feet, he holds the short safety rope with both hands to ascend, and repeats the ascent by bending his legs and twisting the rope again to reach the upper wire.

In order to overcome the deficiencies of the prior art, the present invention also provides a rescue method after the wires of the high-altitude workers on the power transmission line fall, including the following steps:

A) After the operator falls, take out the auxiliary pedal and connect the auxiliary pedal with the stress point of the seat belt. A ring is set at the bottom of the auxiliary pedal, and the person's foot is placed in the ring for support, so that the person can supported;

B) The trapped operator sends a request for rescue assistance to the high-altitude rescue personnel through gestures, voice or walkie-talkie, or the high-altitude rescue personnel finds that the operator is trapped through subjective judgment;

C) High-altitude rescuers approach the trapped people along the wire after doing self-protection to reach the trapped point;

D) High-altitude rescue personnel hang a rescue rope on the wire, and the rescue rope hangs on the side of the trapped worker;

E) The trapped operator returns to the top of the wire through the rescue rope, and the team assists in self-rescue.

In this rescue method, firstly, the trapped workers can stand up by assisting the pedals, so as to prevent the seat belt from causing strangle marks on the legs. This rescue method is suitable for the workers who carry less equipment in the initial state. Set up rescue ropes to assist trapped workers to climb higher.

In the step D), the rescue rope is a rope ladder, and a K lock is arranged on the top of the rope ladder. The rescuer realizes the fixing of the rope ladder and the wire through the K lock. The rope ladder is a wear-resistant nylon rope. Treads.

In the step E), the trapped worker climbs up by holding the rope ladder with his hands and stepping on the rope ladder. When he reaches the vicinity of the wire, the rescuer assists the trapped person to return to the top of the wire.

The rescue rope in the step D) is a short safety rope with a K lock.

In the step D), the high-altitude rescue personnel tie the end of the short safety rope with K lock to prevent detachment and hang it into the team rescue bag, and slowly lower the short safety rope with K lock so that it is as close as possible to the trapped workers. ;

In step E), the trapped operator opens the group rescue bag, and takes out the descent protector, ascender and rescue auxiliary pedal in the rescue bag,

The trapped workers should install the descending protector and ascender on the safety short rope with K lock, and fix the rescue auxiliary pedal on the ascender;

The trapped operator steps on the rescue auxiliary pedal with one foot, uses the ascending device + descending protector to ascend alternately, and returns to the wire along the short safety rope with K lock.

The number of the auxiliary pedals is one or more, and the material of the auxiliary pedals is wear-resistant nylon rope, and the auxiliary pedals, safety belts, and rope ladders are all insulating materials.

When the auxiliary pedal is not in use, the auxiliary pedal is fixed with the safety belt.

Compared with prior art, the beneficial effect of the present invention is:

1) The present invention avoids damage to the human body through the auxiliary foot pedal and the setting of the safety short rope, and the trapped staff can climb up smoothly, and the self-rescue speed is fast. The rescue method is suitable for four-point wires or six-point wires.

2) The present invention cooperates with the setting of the rescue rope through the auxiliary pedal, so that the trapped staff can climb up smoothly, effectively improving the rescue speed.

3) The rescue method of the present invention can not only realize self-rescue, but also can be rescued by others, and can also be rescued under live work, which improves the reliability and economy of power transmission, meets the needs of normal production and life in society, and has great advantages. economic and social benefits.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide further understanding of the present application, and the schematic embodiments and descriptions of the present application are used to explain the present application, and do not constitute improper limitations to the present application.

Fig. 1 is a structural schematic diagram of a rope ladder;

Figure 2 is a schematic diagram of the auxiliary pedal;

Among them: 1. Main rope, 2. Rope ladder, 3. K lock, 4. Auxiliary pedal, 5. Tread circle

Detailed ways

It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to 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 should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

As the introduction of the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a rescue method for people working at heights on power transmission lines after the wires fall.

In a typical implementation of the present application, as shown in FIG. 2 , a rescue method after a conductor of a person working at heights on a power transmission line falls, including:

1) After the operator falls, take out the auxiliary pedal 4, the length of the auxiliary pedal 4 is greater than or equal to the length of the human leg, and connect the auxiliary pedal 4 with the stress point of the safety belt, and set a ring ring at the bottom of the auxiliary pedal 5. Place the person's feet in the annular ring for support, so that the person can be supported;

2) Take out the throwing bag and the traction rope, and tie the traction rope to the safety belt; throw the same wire hanging above and the operator, so that the throwing bag guides the traction rope to bypass the wire;

Use the throwing bag to pull the safety short rope over the wire to form a rope channel between the trapped point and the wire.

3) The traction rope is connected to the short safety rope, pull the short safety rope across the wire, release the traction rope, tie a knot at the other end of the short safety rope with a figure 8 knot, and pull the short safety rope downward through the knot through which the suture end of the short safety rope passes , so that it is fixed on the wire; the operator returns to the wire by using double-grabbed knots or twisted ropes to ascend.

In the above-mentioned rescue method, a hook is set on the top of the auxiliary pedal to facilitate the fixing of the auxiliary pedal and the seat belt. The operator can effectively support the body through the auxiliary pedal, and can stand up, avoiding the seat belt from causing strangle marks on the human leg , and through the setting of the safety short rope, the trapped operator can climb up by himself, return to the position of the wire, and realize self-rescue. The whole process does not require other people to rescue, and the rescue speed is fast, which effectively guarantees the safety of life.

Described step 3) in the step that double grab knot rises is as follows:

1-1) Take out the short grab knot, use the Prussian grab knot to fix it on the short safety rope, fix it to the belly hanging point of the seat belt with the main lock, and lock the main lock; take out the long grab knot, and use the Prussian grab knot to fix it on the short grab knot on the safety short rope below;

1-2) The operator steps on the long grab knot with one foot, and stands with both hands on the short safety rope; then, the operator holds the short safety rope with one hand, and pushes the upper grab knot to the highest point with the other hand;

1-3) Sit down gently, stress the short knot, repeat several times, and push the long knot to the highest point.

Described step 3) in the step that twisted rope rises is as follows:

2-1) Pull both ends of the safety short rope to the front of the operator's body, and tie the end of the safety short rope without a joint to prevent knotting;

2-2) After the operator hinges the rope with both feet, he holds the short safety rope with both hands to ascend, and repeats the ascent by bending his legs and twisting the rope again to reach the upper wire.

In order to overcome the deficiencies of the prior art, the present invention also provides a rescue method after the wires of the high-altitude workers on the power transmission line fall, including the following steps:

A) After the operator falls, take out the auxiliary pedal and connect the auxiliary pedal with the stress point of the seat belt. A ring is set at the bottom of the auxiliary pedal, and the person's foot is placed in the ring for support, so that the person can supported;

B) The trapped operator sends a request for rescue assistance to the high-altitude rescue personnel through gestures, voice or walkie-talkie, or the high-altitude rescue personnel finds that the operator is trapped through subjective judgment;

C) High-altitude rescuers approach the trapped people along the wire after doing self-protection to reach the trapped point;

D) High-altitude rescue personnel hang a rescue rope on the wire, and the rescue rope hangs on the side of the trapped worker;

E) The trapped operator returns to the top of the wire through the rescue rope, and the team assists in self-rescue.

In this rescue method, firstly, the trapped workers can stand up by assisting the pedals, so as to prevent the seat belt from causing strangle marks on the legs. This rescue method is suitable for the workers who carry less equipment in the initial state. Set up rescue ropes to assist trapped workers to climb higher.

The rescue rope in the step D) is a rope ladder, as shown in Figure 1, the top of the main rope 2 of the rope ladder 2 is provided with a K lock 3, and the rescuer realizes the fixing of the rope ladder and the wire through the K lock, and the rope ladder is a wear-resistant nylon rope. Both sides of the nylon rope are respectively provided with a plurality of continuous tread rings.

In the step E), the trapped worker climbs up by holding the rope ladder with his hands and stepping on the rope ladder. When he reaches the vicinity of the wire, the rescuer assists the trapped person to return to the top of the wire.

The rescue rope in the step D) is a short safety rope with a K lock.

In the step D), the high-altitude rescuers hang the team rescue bag after the short safety rope with K lock is anti-knotted at the end, the short safety rope with K lock is fixed with the wire, and the short safety rope with K lock is slowed down. Lower it slowly so that it is as close as possible to the trapped operator;

In step E), the trapped operator opens the group rescue bag, and takes out the descent protector, ascender and rescue auxiliary pedal in the rescue bag,

The trapped workers should install the descending protector and ascender on the safety short rope with K lock, and fix the rescue auxiliary pedal on the ascender;

The trapped workers step on the rescue auxiliary pedal with one foot, use the manual ascender + descending protector to ascend alternately, return the wire along the safety short rope with K lock, and use the manual ascender and the auxiliary pedal together, It can assist in operations such as ascent and body weight conversion. The descending protector has automatic braking, positioning, protection, and self-locking functions. The anti-panic function and anti-misfitting teeth can effectively protect the safety of operators.

The number of the auxiliary pedals is one or more, and the material of the auxiliary pedals is wear-resistant nylon rope, and the auxiliary pedals, safety belts, and rope ladders are all insulating materials.

When the auxiliary pedal is not in use, the auxiliary pedal is fixed with the safety belt.

In the above rescue method,

1. Arrangement of preparation work

(1) Defining the rescue plan: conduct on-site investigation, and determine the electric field entry method and rescue plan based on the results of the on-site investigation.

(2) Determine the operating personnel and labor combination: designate the person in charge of the rescue, the responsible guardian, high-altitude rescue personnel and ground rescue personnel.

(3) Preparation and approval of rescue plans: preparation of rescue plans and implementation of approval procedures. Before rescue, all rescuers should clarify the work content, work process, safety measures, and dangerous points in the work, and perform confirmation procedures.

(4) Determine the requirements for the items needed for the operation: ① The selected live working tools, specifications, quantity, and selection are correct, and the preventive test labels are complete, and they have passed the visual inspection and electrical inspection within the validity period. ② The specifications and readings of the selected testing instruments are correct, the measuring range meets the requirements, and they are within the validity period. ③The specifications of the selected materials are correct and the quality meets the requirements.

(5) Prepare tools and appliances: prepare tools and appliances that meet the requirements according to the way of entering the electric field and the rescue plan (the three commonly used methods of entering the electric field are the two-short-three method, the soft ladder method and the swing method.

personnel requirements

(1) Rescuers should be in good mental condition.

(2) Qualifications of the staff: ① Appraised by a doctor, there is no disease that hinders work. ② Possess the necessary electrical knowledge and live working skills, have the necessary safety production knowledge, and learn emergency first aid, especially electric shock first aid. ③ Possess a live-work training certificate and be approved by the production unit for employment.

2. Analysis and preventive measures of dangerous points in the case of live line and power failure

2.1 Prevent automatic reclosing of the line

(1) Before the work starts, the person in charge of the work should contact the on-duty control personnel to apply for disabling the automatic reclosing. The work can only be started after receiving an order to dispatch the line to deactivate the recloser and allow the work to start. After the live work is completed, it should be reported to the on-duty control personnel in time.

(2) In case of a sudden power failure of the equipment during live work, the operator should regard the equipment as still live. The person in charge of the work should contact the dispatcher as soon as possible, and the on-duty control personnel should not force the power transmission before getting in touch with the person in charge of the work.

2.2 Prevent mistakenly boarding the tower:

(1) Check the line name, tower number, color code, phase difference: ××kV×× line, tower number ××; color code: ××; ×× phase (×× phase). The person in charge of the work confirms that the work site is correct before climbing the tower to carry out work.

2.3 Prevent sudden changes in weather

(1) Live work should be carried out in good weather. In case of lightning (hearing thunder, seeing lightning), snow, hail, rain, fog, etc., live work is not allowed. When the wind force is greater than level 5, or the humidity is greater than 80%, it is generally not suitable to carry out live work.

2.4 Prevent personal electric shock

(1) High-altitude rescue personnel and high-altitude rescue personnel should wear a complete set of shielding clothing that has passed the test, and all parts are well connected. High-altitude rescue personnel must wear a full set of flame-retardant underwear under the shielding suit. Use a multimeter to test the resistance of the shielding suit before work, and the resistance between the farthest ends of the shielding suit should not exceed 20Ω.

(2) Live working tools should be packed in special tool bags during transportation to prevent moisture and damage. When entering the job site, the live working tools used should be placed on the moisture-proof canvas to prevent the insulated tools from being dirty and damp during use. Before use, carefully check that the test label is complete and qualified, and it is within the validity period of the preventive test. Confirm that the tool is not damaged, damp, deformed, or malfunctioning, otherwise it is forbidden to use it. And use a dry and clean towel to wipe and check the insulating tools, and use a 5000V insulating shaker to perform segmental insulation testing (the electrode width is 2cm, and the electrode width is 2cm). The insulation resistance is not less than 700MΩ. Clean and dry gloves should be worn when operating insulating tools Gloves.

(3) When working with live wires, high-altitude rescue personnel and high-altitude rescue personnel should pay attention to reducing the operating range. The person in charge of the work should strictly monitor the equipotential or high-altitude rescue personnel to keep a sufficient safe distance from the grounding body or charged body (500kV shall not be less than 3.2m; the side phase of a 1000kV single circuit line shall not be less than 6m, the middle phase shall not be less than 6.8m; ±660kV shall not less than 4.5m; ±800kV shall not be less than 6.8m).

(4) The effective length of the insulation operating rod for 500kV lines shall not be less than 4m, and the effective insulation length of insulation load-bearing tools and insulation ropes shall not be less than 3.7m; the minimum effective insulation length of 1000kV insulation tools shall not be less than 6.8m; ±660kV shall not be less than 5.3m; ±800kV Not less than 6.8m.

(5) Before entering or exiting the electric field, high-altitude rescue personnel should check the connection of each part of the shielding suit again to confirm that they are well connected, and should obtain the permission of the person in charge of the work.

(6) Combined clearance for high-altitude rescue personnel entering and exiting the electric field: 500kV shall not be less than 3.9m; 1000kV side phase shall not be less than 6.7m, middle phase shall not be less than 6.9m; ±660kV shall not be less than 4.3m; ±800kV shall not be less than 6.6m. Keep the minimum safe distance from the charged body when transferring the potential: 0.4m for 500kV, and 0.5m for 1000kV.

(7) Correctly use the megohmmeter and multimeter, and the wiring is correct to prevent high-voltage electric shock during use.

2.5 Prevent falling from high altitude

(1) Before the high-altitude rescue personnel climb the tower, they should first check whether the root, foundation and stay wire of the tower are firm, and whether the foot nails (or ladders) are complete; Sharp objects are damaged. During operation and shifting, the hand-held components should be firm and must not lose the protection of the safety belt. Before starting work on the cross-arm, check the firm connection of the cross-arm, and the safety belt should be tied to a firm component during the inspection.

(2) Before the high-altitude rescue personnel board the ladder or the insulated soft ladder, the ground personnel should tighten the insulating rope or press the soft ladder tightly, and the high-altitude rescue personnel should carry out the impact test on the ladder and the soft ladder.

2.6 Prevent falling objects from height

(1) Tool bags should be used for high-altitude operations, and larger tools should be fixed on firm components, and they are not allowed to be placed randomly.

(2) Tools, materials, etc. used by high-altitude rescue personnel should be packed in tool bags, and hand-held tools should be tied with ropes to prevent them from falling. Ropes should be used to transfer objects, and no throwing is allowed. The rope buckle should be tied firmly, and the transfer rope should be hung on the firm frame of the iron tower.

(3) On-site workers must wear safety helmets correctly. Ground rescue personnel are not allowed to stand vertically below the work site, and unrelated personnel are not allowed to pass or stay in the falling object area.

In addition, when high-altitude rescuers use rope ladders to rescue rescuers, there are different operating methods for live work and power outage work, as follows:

1 Rescue personnel enter the work site and reach the appropriate position of the tower.

2. After the on-site wind speed and humidity measurement is qualified, and the tower information is checked and correct, report to the dispatcher to apply for deactivation of the line reclosing.

3 After obtaining the scheduling permission, the person in charge of the rescue shall call the members of the rescue team, clarify the rescue plan and task division, and the rescuers shall confirm.

4 Use three commonly used methods of entering the electric field to carry out operations

4.1 Two-span and three-short method (this method is not used for DC lines)

(1) Ground preparation

① Ground rescue personnel and high-altitude rescue personnel carry the canvas to a suitable position on the work site, spread the canvas and move the tools and tools on the canvas and place them neatly.

② Ground rescue personnel wipe the insulating operating rod with a dry towel; ground rescue personnel and high-altitude rescue personnel cooperate with each other to test the insulating backup protection rope and insulating operating rod with a 5000V insulating shaker, and the ground rescue personnel will report the shaking test results Report to the rescue officer.

③Ground rescue personnel assist high-altitude rescue personnel and high-altitude rescue personnel to put on shielding clothing, measure the resistance between the farthest two ends of the shielding clothing with a multimeter, and the measurer reports the measurement results to the person in charge of rescue; Check the connection status of the server.

④ After the ground rescue personnel check that the zero detector for inferior insulators is intact, install it on the insulation operating rod to make the connection reliable.

(2) High-altitude rescue personnel (rescuers mentioned above) climb the tower

① Before climbing the tower, the person in charge of rescue checked the connection of the shielding suit of the high-altitude rescue personnel again, and ordered to start climbing the tower after the inspection was correct.

②High-altitude rescue personnel carry an insulating operating rod (with a low-quality insulator zero detector) to climb the tower, and when they reach the cross-arm of the working phase, they can enter the cross-arm of the working phase after checking again that the double name and color code of the line are correct. Fasten the safety belt at the appropriate position, and check the connection of the tower insulator fittings.

(3) Zero detection of insulators

① High-altitude rescuers use inferior insulator detectors to detect the insulator strings one by one. The detection sequence is from the end of the wire to the crossarm side. In case of low-value insulators, report to the person in charge of the work and make records.

②The number of good insulators per string shall not be less than the requirements of regulations (26 pieces for 500kV, 40 pieces for 1000kV).

(4) Binding insulation back-up protection rope

① High-altitude rescue personnel carry the insulation backup protection rope to climb the tower to the hanging point of the insulator, and tie the insulation backup protection rope.

②High-altitude rescue personnel check the binding of the insulating backup rope, and report the inspection situation to the person in charge after confirming that it is correct.

(5) Entering a strong electric field

① High-altitude rescue personnel apply to the person in charge of the work to enter the insulator string, and after obtaining permission, use the method of "crossing two shorts and three" to slowly move along the tension insulator string from ground potential to high potential.

②When high-altitude rescuers approach the voltage equalizing shielding ring to a certain distance (0.4m for 500kV, 0.5m for 1000kV), they apply for equipotential equipotentiality to the person in charge of rescue. Hold the insulator string shielding ring to complete the equipotential action.

(6) High-altitude rescue personnel should do a good job of self-protection, carry tools and route to the operating point;

(7) carry out rescue work according to the above steps;

(8) After the rescue is completed, the high-altitude rescue personnel carry tools and return to the line;

(9) Exit the strong electric field:

① High-altitude rescue personnel check that there are no tools, materials, etc. left on the wires and shielding rings, and report to the person in charge of the rescue. After the person in charge of the rescue confirms that it is correct, he orders to exit the strong electric field.

②When the high-altitude rescue personnel are at a certain distance from the charged body (0.4m for 500kV, 0.5m for 1000kV), they apply to exit the electric field. After being approved by the person in charge of the rescue, the high-altitude rescue personnel quickly loosen the shielding ring of the insulator string to complete the action of exiting the strong electric field .

③High-altitude rescuers move slowly from high potential to ground potential in the way of "cross two short three" and exit the electric field.

(10) Check the site and personnel get off the tower

① The person in charge of rescue checks that there are no tools, materials, etc. left on the tower and wires, and orders the high-altitude rescue personnel to get off the tower.

②High-altitude rescue personnel carry insulated backup protection ropes and rescue tools to get down the tower.

4.2 Soft Ladder Method

(1) Ground preparation

① Ground rescue personnel and high-altitude rescue personnel carry the canvas to a suitable position on the work site, spread the canvas and move the tools and tools on the canvas and place them neatly.

②The ground rescue personnel cooperate with each other to use the 5000V insulation shaking meter to shake the insulation rope and the insulation ladder, etc., and report the results to the person in charge of the rescue.

③Ground rescue personnel assist high-altitude rescue personnel and high-altitude rescue personnel to put on shielding clothing, measure the resistance between the farthest two ends of the shielding clothing with a multimeter, and the measurer reports the measurement results to the person in charge of rescue; Check the connection status of the server.

(2) High-altitude rescue personnel ascend the tower

① Before climbing the tower, the person in charge of rescue checked the connection of the shielding suit of the high-altitude rescue personnel again, and ordered to start climbing the tower after the inspection was correct.

②When the high-altitude rescue personnel carry the insulating transmission rope to the cross arm of the working phase, they can enter the cross arm of the working phase after checking the double name and color code of the line again, fasten the safety belt, and hang the insulating transmission rope at the appropriate position .

(3) Delivery tool

① Ground rescuers fix the ladder on the insulated transfer rope and transfer it to a suitable position, and high-altitude rescuers fix the ladder at the appropriate position on the cross arm.

(4) climbing ladder

① Ground rescuers use insulated transfer ropes as backup protection to reliably connect the safety belts of high-altitude rescuers to the insulated transfer rope.

②The ground rescue personnel shall conduct a pressure test on the insulating ladder, and report to the person in charge of rescue after confirming that it is safe and reliable.

③ After confirming that the ladder is reliable, the high-altitude rescuers began to climb the ladder.

(5) Entering a strong electric field

① When high-altitude rescuers climb the ladder to a certain distance (0.4m for 500kV, 0.5m for 1000kV), they apply for equipotentiality, and after obtaining the permission of the person in charge of rescue, quickly grasp the wire to complete the equipotential action.

②After the high-altitude rescue personnel sit on the wire, fasten the safety belt, untie the insulating transmission rope and fix it on the wire, and report to the person in charge of rescue.

(6) High-altitude rescue personnel fasten double-safety safety belts, carry tools and route to the operating point;

(7) carry out rescue work according to the above steps;

(8) After the rescue is completed, the high-altitude rescue personnel carry tools and return to the line;

(9) Exit the strong electric field

① High-altitude rescue personnel check that there are no tools, materials, etc. left on the wires and shielding rings, and report to the person in charge of the rescue. After the person in charge of the rescue confirms that it is correct, he orders to exit the strong electric field.

②High-altitude rescuers fix the insulated transfer rope at the appropriate position of the safety belt as backup protection, release the safety belt tied to the wire, and board the soft ladder to prepare for exiting the electric field.

③ When the high-altitude rescue personnel are at a certain distance from the charged body (0.4m for 500kV, 0.5m for 1000kV), they should apply for exiting the electric field, and after obtaining the permission of the person in charge of the rescue, quickly leave the wire, complete the action of exiting the strong electric field, and return to the ground along the insulating ladder.

(10) Check the site and personnel get off the tower

① The person in charge of rescue checks that there are no tools, materials, etc. left on the tower and wires, and orders the high-altitude rescue personnel to get off the tower.

②High-altitude rescue personnel carry insulating ropes and rescue tools to descend the tower.

4.3 Swing method

(1) Ground preparation

① Ground rescue personnel and high-altitude rescue personnel carry the canvas to a suitable position on the work site, spread the canvas and move the tools and tools on the canvas and place them neatly.

②The ground rescue personnel cooperate with each other to use the 5000V insulation shaking meter to shake the insulation tools such as insulation rope, insulation swing rope, insulation backup protection rope, etc., and report the results to the person in charge of rescue.

③Ground rescue personnel assist high-altitude rescue personnel and high-altitude rescue personnel to put on shielding clothing, measure the resistance between the farthest two ends of the shielding clothing with a multimeter, and the measurer reports the measurement results to the person in charge of rescue; Check the connection status of the server.

(2) High-altitude rescue personnel climb the tower

① Before climbing the tower, the person in charge of rescue checked the connection of the shielding suit of the high-altitude rescue personnel again, and ordered to start climbing the tower after the inspection was correct.

②When the high-altitude rescue personnel carry the insulating transmission rope to the cross arm of the working phase, they can enter the cross arm of the working phase after checking the double name and color code of the line again, fasten the safety belt, and hang the insulating transmission rope at the appropriate position .

(3) Passing, hanging, pressure testing, climbing the ladder

① Ground rescue personnel use insulating transfer ropes to transfer the 1-2 pulley block, the ladder, the insulating backup protection rope and the insulating pendulum rope to the cross arm. The high-altitude rescuers fix the 1-2 pulley block in the proper position, and check it to ensure it is firm; the high-altitude rescuer measures and fixes the insulating pendulum rope and the backup protection rope; the high-altitude rescuer checks the reliable connection between the block block and the ladder ladder. Then report to the person in charge of rescue, and after the person in charge of rescue confirms that it is safe, he orders the high-altitude rescuers to board the ladder to prepare for entering the electric field.

② Ground rescuers tighten the insulating pull ropes of 1-2 pulley block.

③High-altitude rescue personnel hang up the insulating backup protection rope, climb the ladder, and report to the rescue person in charge after passing the impact test. After the rescue person in charge confirms that it is correct, he orders the ground rescue personnel to loosen the insulating rope of the pulley block at a uniform speed.

(4) Entering a strong electric field

① When high-altitude rescuers climb the ladder to a certain distance (0.4m for 500kV, 0.5m for 1000kV), they apply for equipotentiality, and after obtaining the permission of the person in charge of rescue, quickly grasp the wire to complete the equipotential action.

② After the high-altitude rescue personnel sit on the wire, fasten the safety belt, untie the insulation backup protection rope and fix it on the wire, and report to the person in charge of rescue.

(5) High-altitude rescue personnel fasten double-safety safety belts, carry tools and route to the operating point;

(6) Carry out rescue work according to the above steps;

(7) After the rescue is completed, the high-altitude rescue personnel carry tools and return to the line;

(8) Exit the strong electric field

① High-altitude rescue personnel check that there are no tools, materials, etc. left on the wires, and report to the person in charge of rescue. After the person in charge of rescue confirms that it is correct, he orders to exit the strong electric field.

②High-altitude rescue personnel fix the insulating backup protection rope at the appropriate position of the seat belt, release the seat belt tied to the wire, and board the ladder to prepare for exiting the electric field.

③When the high-altitude rescue personnel are at a certain distance from the charged body (0.4m for 500kV and 0.5m for 1000kV), they should apply to exit the electric field.

④ Ground rescue personnel quickly pull the 1-2 pulley block insulation pull rope to send high-altitude rescue personnel out of the strong electric field.

(9) Check the site and personnel get off the tower

① High-altitude rescue personnel use insulating transfer ropes to bind 1-2 pulley blocks, Shizi ladder, insulating backup protection rope and insulating pendulum rope, and then pass them to the ground by ground rescue personnel.

② The person in charge of the rescue checks that there are no tools, materials, etc. left on the tower and wires, and orders the rescue personnel on the tower and at high altitude to get off the tower.

③High-altitude rescue personnel carry insulated transmission ropes and rescue tools to get down the tower.

2.5 The end of the rescue

The rescue personnel on the ground arrange the rescue tools and equipment, and the person in charge of the rescue reports to the dispatch and applies for the termination of the rescue.

In addition, the trapped people can also be rescued after a power outage. The rescue plan is as follows:

1. The work licensor shall report to the dispatcher to apply for power outage of the line and request rescue;

2 Rescuers are in place. The person in charge of the rescue formulates a rescue plan, clarifies the rescue plan and the division of tasks, and the rescuers confirm. Finishing tools and appliances: rescue tools, electroscopes with corresponding voltage levels that have passed the test, grounding wires, insulating gloves, soft ladders, backup protection ropes, etc.; double-circuit lines on the same tower and single-circuit lines (DC line unipolar) should be prepared to pass the test after power failure A full set of shielding suits, multimeters, insulated endless loops.

3 Prevent mistaken boarding on the live pole tower or mistakenly entering the cross arm on the live side

(1) Designated license (single-circuit line)

① Before the rescue, all the rescue personnel should face the side of the iron tower number plate, and the person in charge of the rescue should explain the rescue tasks and the division of labor to the operators;

② Rescuers briefly read back the rescue work undertaken by the individual, and it is confirmed by the person in charge of rescue that it is correct;

③ Before climbing the tower, rescuers check the line name, tower number, and color code (××kV×× line, color code: ××), and read aloud;

④ After the person in charge of the rescue checks that there is no error, order the rescuers to climb the tower;

⑤After the rescuers arrive at the predetermined location, do a good job of self-protection, use a qualified electroscope, wear insulating gloves, and install the grounding wire immediately after checking that there is no voltage. Ground wire. ;

⑥Rescue personnel report to the person in charge of rescue that "the ground wire has been hung up!" After the person in charge of rescue has checked, he orders the rescuers to start rescue.

(2) Designation permit (double circuit line)

① Before the rescue, all the rescue personnel should face the side of the iron tower number plate, and the person in charge of the rescue should explain the rescue tasks and division of labor to the operators; and clearly point out the location of the power outage line;

② Rescuers briefly read back the content explained by the person in charge of rescue and the rescue tasks undertaken by the individual, and the person in charge of rescue has confirmed that it is correct;

③ Before climbing the tower, rescuers check the line name, tower number, and color code (××kV×× line, color code: ××), and read aloud;

④ After the person in charge of rescue checks that there is no mistake, he will order the rescuers to climb the tower;

⑤ When the rescuers respectively board the cross-arm, stretch one arm horizontally to indicate the location of the outage line. The person in charge of the rescue checks that the name and color of the line on the number plate of the line tower are correct, makes a gesture of permission and sends out "up". The middle and lower phases can enter the ××kV×× line crossarm” command, and the rescuers can enter the power failure line side crossarm;

⑥After the rescuers are in place, do a good job of personal protection, use a qualified electroscope, wear insulating gloves, and install the grounding wire immediately after checking that there is no voltage. . ;

⑦Rescue personnel report to the person in charge of rescue that "the ground wire has been hung up!" After the person in charge of rescue has checked, he orders the rescuers to start the rescue.

4 High-altitude rescue personnel walk to the operating point to carry out rescue work;

5 Rescue mission completed

6. The person in charge of rescue confirms that there are no tools and materials left on the wires and insulator strings, and orders the removal of the grounding wires hung at both ends of the work site. When removing, first remove the wire end, and then remove the grounding end. Do not directly touch the grounding wire with your hands. After confirming that there is no residue on the tower and wires, lower the tower and return to the ground;

7. The person in charge of the rescue reports the end of the rescue work to the work licensor;

8. The work licensor reports the end of the work to the dispatcher and applies for power transmission.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, there may be various modifications and changes in the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included within the protection scope of this application.

Claims (10)

1. a kind of transmission line high-altitude operating personnel wire fall after rescue mode, it is characterised in that comprise the following steps：

1) after operating personnel falls, take out auxiliary and ride, and the foot-operated stress point with safety belt will be aided in be attached, auxiliary foot Tread portion sets annular ring, and the foot of people is positioned in annular ring and is supported, people is able to be supported；

2) jettisoning bag, pull rope are taken out, pull rope is tied up on safety belt；The same wire with operating personnel's suspension is thrown upward Throw, making to jettisoning to wrap guides pull rope to bypass wire；

3) pull rope connects safe short rope, draws safe short rope across wire, pull rope is released, in the safe word of the short rope other end 8 Knotting is tied, the knot that safe short rope suture end passes through is pulled down into safe short rope, it is fixed on wire；Operating personnel's profit The mode that liter or twisted rope rise is tied with double grab, returns to wire.

2. a kind of transmission line high-altitude operating personnel wire according to claim 1 fall after rescue mode, its feature It is, double in the step 3) to grab the step of tying liter as follows：

1-1) taking-up is short grabs knot, and grabbing knot using Prussia is fixed in safe short rope, and safety belt belly hanging point is scheduled with main locking, Lock main lock；Take out length and grab knot, grabbing knot using Prussia is fixed in the short safe short rope for grabbing the side of forging；

1-2) pin of operating personnel one is trampled ties in long grab, and both hands help safe short rope to stand；Then, one hand steered safety of operating personnel Short rope, hand propelled top grab knot and arrive highest point；

It is 1-3) light and slow to sit down, make it is short grab knot stress, repeatedly, promote long knot of grabbing to arrive highest point.

3. a kind of transmission line high-altitude operating personnel wire according to claim 1 fall after rescue mode, its feature It is, it is as follows the step of twisted rope rising in the step 3)：

2-1) safe short rope both ends are pulled in front of operating personnel's body, and fag end of the safe short rope without suture end accomplished fluently anti- De- knot；

2-2) after operating personnel's both feet hinge rope, both hands are held safe short rope and risen, and the mode of bent leg twisted rope repeats to rise again, Square wire in arrival.

4. a kind of transmission line high-altitude operating personnel wire fall after rescue mode, it is characterised in that comprise the following steps：

A after) operating personnel falls, take out auxiliary and ride, and the foot-operated stress point with safety belt will be aided in be attached, auxiliary foot Tread portion sets annular ring, and the foot of people is positioned in annular ring and is supported, people is able to be supported；

B) it is stranded operating personnel and sends assistance aid request to height rescue personnel by way of gesture, sound or intercom Or height rescue personnel have found that operating personnel is stranded by subjective judgement；

C) height rescue personnel are carried out after self-protection along wire close to trapped personnel, reach stranded point；

D) height rescue personnel hang rescue rope on wire, and rescue rope hangs on the sidepiece of stranded operating personnel；

E operating personnel) is stranded by the way that above rescue rope return conductor, group assists completion of saving oneself.

5. a kind of transmission line high-altitude operating personnel wire according to claim 1 fall after rescue mode, its feature Be, the step D) in rescue rope be rope ladder, set K to lock at the top of rope ladder.

6. a kind of transmission line high-altitude operating personnel wire according to claim 5 fall after rescue mode, its feature Be, the step E) in be stranded that operating personnel is held by hand holding rope ladder, foot-operated rope ladder is climbed upwards, when reaching near wire, Rescue personnel is assisted above trapped personnel return conductor.

7. a kind of transmission line high-altitude operating personnel wire according to claim 5 fall after rescue mode, its feature Be, the step D) in rescue rope be band K lock safe short rope.

8. a kind of transmission line high-altitude operating personnel wire according to claim 7 fall after rescue mode, its feature Be, the step D) high and medium rescue personnel beaten with the safe short rope tail of rope that K locks after anticreep knot be linked into group rescue bag, will Safe short rope with K locks is slowly transferred, and makes it close proximity to stranded operating personnel；

Step E) in be stranded operating personnel open group rescue bag, will rescue bag in decline protector, lifting device and rescue it is auxiliary Foot-operated taking-up is helped,

Stranded operating personnel installs in the safe short rope locked with K declines protector and lifting device, the fixed rescue on lifting device Auxiliary is foot-operated；

Stranded operating personnel singly rides to set foot in rescue auxiliary foot, replaces climb procedure using lifting device+decline protector, along band The safe short rope return conductor of K locks.

9. a kind of transmission line high-altitude operating personnel wire according to claim 1 or 4 fall after rescue mode, it is special Sign is that the foot-operated quantity of the auxiliary is one or more.

10. a kind of transmission line high-altitude operating personnel wire according to claim 1 or 4 fall after rescue mode, its It is characterised by, the auxiliary is ridden when unused, and auxiliary is ridden and fixed with safety belt.