CN110707595B - Safety method for lightning arrester line to enter equipotential in live state - Google Patents
Safety method for lightning arrester line to enter equipotential in live state Download PDFInfo
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- CN110707595B CN110707595B CN201910882041.0A CN201910882041A CN110707595B CN 110707595 B CN110707595 B CN 110707595B CN 201910882041 A CN201910882041 A CN 201910882041A CN 110707595 B CN110707595 B CN 110707595B
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- 238000000034 method Methods 0.000 title claims abstract description 35
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 94
- 229910052742 iron Inorganic materials 0.000 claims abstract description 47
- 230000009194 climbing Effects 0.000 claims abstract description 7
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 239000012212 insulator Substances 0.000 description 4
- 235000000396 iron Nutrition 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009193 crawling Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
Abstract
The invention discloses a safety method for a lightning arrester to enter equipotential when a line is electrified, and relates to the technical field of electric power construction; the method comprises the following steps: step a, wearing a whole set of shielding clothes on the ground; b, carrying an insulated carrier to climb the iron stand upwards to the height of the electric wire; and c, erecting one end of the insulated carrier on an iron stand, erecting the other end of the insulated carrier on the electric wire, and then walking from the iron stand to the electric wire. The iron stand is used for climbing to the height of the electric wire, then the insulated carrier is used for walking to the position of the electric wire, a scissor-type working platform is not needed, and the electric wire lifting device is suitable for the environment with uneven field ground.
Description
Technical Field
The invention belongs to the technical field of electric power construction, and particularly relates to a safety method for a lightning arrester to enter an equipotential state in an electrified way.
Background
The iron frame is a columnar structure which is composed of a plurality of angle irons and used for supporting a cross arm, the columnar structure is similar to a truss, a part of the angle irons are horizontal cross rods, the cross rods are distributed on the side surface of the iron frame along the axis of the iron frame, the cross arm is arranged at the top end of the iron frame, insulators are arranged on the cross arm, electric wires are connected to the bottom ends of the insulators, operators sometimes need to carry out live working on the electric wires, namely equipotential working, particularly equipotential working at 220kv voltage, and the prior art usually adopts a scissor type working platform to ascend to the electric wires from the ground to carry out equipotential working; at present, a plurality of wires are positioned on a mountain, the scissor type work platform is difficult to transport to the mountain, even if the scissor type work platform can be transported to the mountain, the scissor type work platform is difficult to keep stable due to uneven ground in the field, and live working can not be carried out by using the method.
Disclosure of Invention
The invention aims to overcome the defect that the prior art cannot be applied to environments with uneven outdoor ground such as mountains, and provides a safety method for enabling a lightning arrester line to enter an equipotential in an electrified manner, which can be applied to environments with uneven outdoor ground such as mountains.
In order to achieve the purpose, the invention adopts the following technical scheme:
a safety method for a lightning arrester to enter an equipotential state when a line is electrified comprises the following steps: step a, wearing a whole set of shielding clothes on the ground; b, carrying an insulated carrier to climb the iron stand upwards to the height of the electric wire; and c, erecting one end of the insulated carrier on an iron stand, erecting the other end of the insulated carrier on the electric wire, and then walking from the iron stand to the electric wire. The iron stand is used for climbing to the height of the electric wire, then the insulated carrier is used for walking to the position of the electric wire, a scissor-type working platform is not needed, and the electric wire lifting device is suitable for the environment with uneven field ground.
Preferably, the voltage of the current in the wire in the step b is 220kv, the distance between the human body and the wire in the climbing process is more than or equal to 2m, the distance between the human body and the iron stand in the walking process is L, the distance between the human body and the wire is H, L + H >2.3m, the distance between the human body and the cross arm is more than or equal to 2m after reaching the wire, and the distance between the human body and the iron stand is more than or equal to 2 m. In the climbing process, the distance between a human body and an electric wire is at least 2m, after extensive experiments, the distance is safe for a voltage of 220kv, then an insulating carrier is erected, and then the electric wire is walked from the insulating carrier, in the walking process, L + H is more than 2.3m, in the walking process, hands and feet of a person can swing, in order to ensure the safety of the person, the current cannot puncture an iron frame through four limbs of the human body, L + H is required to be ensured to be more than 2.3m, when a worker arrives at the electric wire, the distance between the human body and a cross arm is more than or equal to 2m, at the moment, the cross arm is positioned at the top of the head of the human body, in order to prevent the current from puncturing the cross arm through the human body, the distance between the human body and the cross arm is at least 2m, and in the same way, the distance between the human body and.
Preferably, the insulated carrier in the step c comprises a plurality of support rods, a connecting rod is arranged between the support rods, two ends of the connecting rod are connected with the support rods on two sides of the connecting rod, one end of each support rod is hinged with a buffer rod used for being fixedly connected with an iron frame, and a coil spring is arranged at the hinged position of each buffer rod and each support rod. When the traditional insulated carrier is similar to a ladder, an operator firstly supports one end of the insulated carrier against an iron stand and then freely falls onto an electric wire, the free end of the insulated carrier and the electric wire can cause large impact, and the insulated carrier is easily shaken onto the ground to cause injury to workers below; when the buffer rod is used, the buffer rod is fixed on the iron frame, the buffer rod is attached to the support rod initially, then the support rod is placed downwards, the buffer rod does not rotate, the support rod rotates towards the electric wire, the coil spring plays a role in buffering, and the support rod and the electric wire cannot cause large impact.
Keep away from bracing piece one side sliding connection as preferred buffer beam and have the slider that leans on at the horizontal pole upside of iron stand, the one end rigid coupling that buffer beam was kept away from to the slider has the stopper that prevents the horizontal pole roll-off, buffer beam articulates in the slider below has the latch hook that is used for withholding the horizontal pole, the upper end of latch hook is the hinged end, be equipped with the attenuator between slider and the latch hook, the attenuator includes the cavity, fills fluid in the cavity, is located the piston in the cavity, piston with piston connection's piston rod, be equipped with the oilhole of crossing that is used for fluid to pass through on the piston, the one end that is located the piston rod and keeps away from the piston is worn out the cavity and is connected with the slider, the one end of keeping away from the piston rod on the cavity is connected with the stay. The buffer rod is convenient to fix.
Preferably, the buffer rod is fixedly connected with a fixed block above the sliding block, the fixed block is connected with a spring, one end, far away from the fixed block, of the spring is connected to the sliding block, a second spring is arranged in the cavity, and the second spring is located on one side, far away from the piston rod, of the piston. When the buffer rod is taken down, the position of the sliding block is automatically adjusted by the spring, and the pull rope is in a stretched state by the second spring, so that the buffer rod is convenient to use next time.
Preferably, a sliding groove is formed in the buffer rod, the cross section of the sliding groove is in a convex shape, and one end, close to the buffer rod, of the sliding block is matched with the sliding groove and is connected in the sliding groove in a sliding mode.
As preferred, the buffer beam has the second fixed block that supports the horizontal pole upside that leans on at the latch hook corresponding position rigid coupling and leans on at the iron stand, the latch hook upper end articulates the one end of keeping away from the buffer beam at the second fixed block, latch hook upper end rigid coupling has the handle, attenuator sliding connection is in the spout, be equipped with the grooving in the second fixed block, the lower extreme and the grooving intercommunication of spout, the spout lower extreme is equipped with the steering spindle that is used for the stay cord to turn to, the one end that the attenuator was kept away from to the stay cord is walked around behind the steering spindle and is connected with the handle after passing the grooving.
Preferably, a lock hole is formed in the handle, a locking rod is fixedly connected to one end, far away from the buffer rod, of the second fixing block, a bolt is inserted into the locking rod, and when the cross rod is buckled by the lock hook, the bolt is inserted into the lock hole. The bolt can prevent the latch hook from being opened when detaining the electric wire.
Preferably, in step c, the specific method for setting up the insulated carrier is as follows: lean on the slider at a horizontal pole upside earlier, then under insulating delivery vehicle dead weight, stay cord pulling handle, the latch hook is opened, the second fixed block slowly moves towards another horizontal pole, support at another horizontal pole upside when the second fixed block, the latch hook is under the effect of second wind spring, the latch hook rotates downwards, finally the latch hook withholds the second horizontal pole, then insert the bolt, the bolt passes keyhole and locking lever, thereby prevent that the latch hook from being opened, then slowly rotate the bracing piece, the bracing piece rotates towards the electric wire, final bracing piece tip is set up on the electric wire.
Preferably, the number of the supporting rods is two, the supporting rods comprise a first rod and a second rod, an included angle between the first rod and the second rod is an obtuse angle, the first rods of the two supporting rods are parallel to each other, and the second rods of the two supporting rods are parallel to each other. The structure is simple. And when the operating personnel is from the iron stand to the electric wire, need to make L + H >2.3m, therefore, first pole and second pole are the obtuse angle, and the people can regard as two hypotenuses of obtuse triangle in the walking route. Therefore, the value of L + H is increased, and electric shock is not easily caused.
The invention has the beneficial effects that: the invention can be applied to the environment with uneven field ground such as mountains; in addition, the electric shock is not easy to occur, and the insulated carrier is stably erected.
Drawings
FIG. 1 is a schematic view of an operator crawling iron stand;
FIG. 2 is a schematic view of an insulated vehicle in set up;
FIG. 3 is a schematic view of the operator walking to the electric wire;
FIG. 4 is a top view of an insulated vehicle;
FIG. 5 is an enlarged view of FIG. 4 at A;
FIG. 6 is a cross-sectional view B-B of FIG. 5;
FIG. 7 is an enlarged view at C of FIG. 6;
FIG. 8 is a cross-sectional view taken along line D-D of FIG. 6;
FIG. 9 is a schematic view of the cross bar abutting against the slide;
FIG. 10 is a schematic view of the cross bar abutting against a second fixed block;
FIG. 11 is a schematic view of the latch hook latching the cross bar;
FIG. 12 is a schematic view of the rotational support rod;
fig. 13 is a schematic view of the support bar being attached to the wire.
In the figure: the device comprises an iron frame 1, an electric wire 2, an insulating carrier 3, a cross arm 4, a support rod 5, a connecting rod 6, a cross rod 7, a buffer rod 8, a sliding groove 9, a sliding block 10, a limiting block 11, a cavity 12, a piston 13, a piston rod 14, an oil passing hole 15, a locking hook 16, a pull rope 17, a fixing block 18, a spring 19, a second spring 20, a second fixing block 21, a rope groove 22, a steering shaft 23, a locking hole 24, a locking rod 25, a handle 27, a first rod 28 and a second rod 29.
Detailed Description
The invention is explained in further detail below with reference to the figures and the detailed description:
referring to fig. 1 to 3, a safety method for entering an equipotential by a live line of a lightning arrester includes the following steps: step a, wearing a whole set of shielding clothes on the ground; b, carrying the insulated carrier 3 to climb the iron stand 1 upwards to the height of the wire 2; the voltage of the current in the wire 2 is 220kv, the distance between the human body and the wire 2 in the climbing process is more than or equal to 2m, in the step c, the distance between the human body and the iron stand 1 is L, the distance between the human body and the wire 2 is H, L + H is more than 2.3m, after the human body reaches the wire 2, the distance between the human body and the cross arm 4 is more than or equal to 2m, and the distance between the human body and the iron stand 1 is more than or equal to 2 m; and c, one end of the insulated carrier 3 is arranged on the iron stand 1, the other end of the insulated carrier 3 is arranged on the electric wire 2, and then the insulated carrier travels from the iron stand 1 to the electric wire 2.
Referring to fig. 4 to 13: the insulated carrier 3 in the step c comprises two support rods 5, each support rod 5 comprises a first rod 28 and a second rod 29, the included angle between the first rod 28 and the second rod 29 is an obtuse angle, the first rods 28 of the two support rods 5 are parallel, and the second rods 29 of the two support rods 5 are parallel; a connecting rod 6 is arranged between the supporting rods 5, two ends of the connecting rod 6 are connected with the supporting rods 5 on two sides of the connecting rod, one end of each supporting rod 5 is hinged with a buffer rod 8 which is fixedly connected with the iron frame 1, and a coil spring is arranged at the hinged position of each buffer rod 8 and the corresponding supporting rod 5; one side, far away from the supporting rod 5, of the buffer rod 8 is connected with a sliding block 10 which abuts against the upper side of a cross rod 7 of the iron frame 1 in a sliding mode, a sliding groove 9 is formed in the buffer rod 8, the cross section of the sliding groove 9 is in a convex shape, and one end, close to the buffer rod 8, of the sliding block 10 is matched with the sliding groove 9 and is connected in the sliding groove 9 in a sliding mode; a limiting block 11 for preventing the cross bar 7 from sliding out is fixedly connected to one end, away from the buffer rod 8, of the sliding block 10, a lock hook 16 for buckling the cross bar 7 is hinged to the lower portion of the sliding block 10, the upper end of the lock hook 16 is a hinged end, a damper is arranged between the sliding block 10 and the lock hook 16, the damper comprises a cavity 12, oil filled in the cavity 12, a piston 13 located in the cavity 12 and a piston rod 14 connected with the piston 13, an oil passing hole 15 for the oil to pass through is formed in the piston 13, one end, away from the piston 13, of the piston rod 14 penetrates out of the cavity 12 and is connected with the sliding block 10, one end, away from the piston rod 14, of the cavity 12 is connected with a pull rope 17 connected with the lock hook 16 and used for opening the lock hook 16, and a second coil spring for closing the lock; a fixed block 18 is fixedly connected above the sliding block 10 of the buffer rod 8, a spring 19 is connected to the fixed block 18, one end, far away from the fixed block 18, of the spring 19 is connected to the sliding block 10, a second spring 20 is arranged in the cavity 12, and the second spring 20 is located on one side, far away from the piston rod 14, of the piston 13; a second fixing block 21 which is abutted against the upper side of the cross bar 7 of the iron frame 1 is fixedly connected to the buffer rod 8 at a position corresponding to the lock hook 16, the upper end of the lock hook 16 is hinged to one end, away from the buffer rod 8, of the second fixing block 21, a handle 27 is fixedly connected to the upper end of the lock hook 16, the damper is connected in the sliding groove 9 in a sliding mode, a rope groove 22 is formed in the second fixing block 21, the lower end of the sliding groove 9 is communicated with the rope groove 22, a steering shaft 23 used for steering the pull rope 17 is arranged at the lower end of the sliding groove 9, and one end, away from the damper, of the pull rope 17 bypasses the steering shaft; the handle 27 is provided with a lock hole 24, one end of the second fixing block 21, which is far away from the buffer rod 8, is fixedly connected with a locking rod 25, a bolt is inserted into the locking rod 25, and when the lock hook 16 buckles the cross rod 7, the bolt is inserted into the lock hole 24.
The method comprises the following specific implementation processes:
the iron stand 1 is a columnar structure composed of a plurality of angle irons and used for supporting a cross arm, the columnar structure is similar to a truss, a part of the angle irons are horizontal cross bars, the cross bars 7 are distributed on the side surface of the iron stand 1 along the axis of the iron stand 1, the cross arm is arranged at the top end of the iron stand, insulators are mounted on the cross arm, electric wires are connected to the bottom ends of the insulators, operators sometimes need to carry out live working on the electric wires, namely, equipotential working, particularly equipotential working at 220kv voltage, and the prior art often adopts a scissor type working platform to ascend to the electric wires from the ground to carry out equipotential working; at present, a plurality of wires are positioned on a mountain, the scissor type work platform is difficult to transport to the mountain, even if the scissor type work platform can be transported to the mountain, the scissor type work platform is difficult to keep stable due to uneven ground in the field, and live working can not be carried out by using the method.
In the method, firstly, an operator wears shielding clothes on the ground to protect the operator, an insulating carrier 3 is made of insulating materials and has a small weight, the operator carries the insulating carrier 3 to climb an iron stand, the distance between a human body and an electric wire is at least 2m in the climbing process, the distance is safe for 220kv after extensive tests, then the insulating carrier 3 is erected, then the operator walks from the insulating carrier 3 to the electric wire, L + H is more than 2.3m in the walking process, hands and feet of the operator can swing in the walking process, in order to ensure the safety of the operator, the current can not puncture the iron stand through four limbs of the human body, the L + H is required to be more than 2.3m, when the operator reaches the electric wire, the distance between the human body and a cross arm is more than or equal to 2m, the cross arm 4 is positioned at the top of the head of the human body, in order to prevent the current from puncturing the cross arm through the human body, the distance from the human body to the cross arm is at least 2m, and the distance from the human body to the iron frame is at least 2m in the same way.
When the insulated carrier 3 is set up; the method comprises the following steps: the first rod 28 and the second rod 29 are integrally formed, one end of the first rod 28 is connected with the second rod 29, one end of the first rod 28, which is far away from the second rod 29, is hinged with the buffer rod 8, the free end of the buffer rod 8 faces the second rod 29, when an operator carries the insulated carrier 3, the second rod 29 is arranged on the upper portion, the first rod 28 is arranged on the lower portion, when the insulated carrier 3 reaches a required height, the sliding block 10 is firstly abutted against the upper side of a cross rod 7, then under the self weight of the insulated carrier 3, the sliding block 10 slides upwards along the buffer rod 8, the spring 19 is compressed, at the moment, the buffer rod 8 moves downwards relative to the ground, the steering shaft 23 moves downwards relative to the damper, the damper is pulled downwards by a pull rope, but because the cavity 12 is filled with oil, the oil is silicon oil, the viscosity of the oil is high, the piston 13 can slide in the cavity 12, and when the piston slides, the oil flows through the oil hole 15, the faster the piston moves, the larger the resistance, and the slower the piston moves, the smaller the resistance; when the buffer rod 8 moves downwards under the action of the dead weight of the insulated carrier 3, at the moment, the pull rope pulls the cavity, the cavity and the piston generate relative motion, but the relative speed of the cavity and the piston is lower, enough damping force is provided, so that the pull rope 17 pulls the handle, the latch hook 16 rotates towards the direction far away from the buffer rod 8, the latch hook 16 is opened, then the cavity and the piston continue to move relatively, namely, as the piston slowly moves towards the direction of the slider, the second fixed block 21 slowly moves towards the other cross rod 7, the cross rod 7 is in an up-and-down relation with the cross rod 7 abutted against the slider 10, the cross rod abutted against the slider is a first cross rod, the other cross rod is a second cross rod, when the second fixed block 21 abuts against the second upper side of the second cross rod, the latch hook 16 rotates downwards under the action of the second coil spring, drive handle 27 and rotate, handle 27 slowly stimulates stay cord 17, under the effect of stay cord 17, cavity 12 slowly toward keeping away from the motion of slider 10 direction, fluid slowly flows from the oilhole, final latch hook 16 withholds the second horizontal pole, then insert the bolt, the bolt passes keyhole 24 and locking lever 25, thereby prevent that latch hook 16 from being opened, this moment, buffer beam 8 is fixed with two horizontal poles 7, then slowly rotate bracing piece 5, bracing piece 5 rotates towards electric wire 2, final bracing piece tip is set up on the electric wire. When rotating, under the effect of the coil spring, the support rod 5 can not fall onto the wire rapidly, playing a role in buffering. And because of the effect of the coil spring, the support rod 5 exerts bending moment on the buffer rod 8, but under the effect of the limiting block 11, the support rod 5 can not rotate.
When the insulating delivery vehicle 3 needs to be taken down, firstly, an operator firstly returns to the iron stand 1 through the insulating delivery vehicle 3, then the supporting rod 5 is rotated, the end part of the supporting rod 5 leaves an electric wire, the rotating is labor-saving under the action of a coil spring, the supporting rod 5 is attached to the buffer rod 8, the supporting rod 5 is in a vertical state at the moment, the bolt is extracted, then the supporting rod 5 is grabbed by a hand, the lifting is carried out, the lock hook 16 rotates, the lock hook is opened, the second cross rod leaves the lock hook, and the insulating delivery vehicle 3 is taken down.
After the sliding block 10 is taken down, under the action of the spring 19, the sliding block 10 slides towards the latch hook 16, the piston 13 is driven to move towards the latch hook 16, the spring 19 extends, under the action of the second coil spring, the latch hook 16 is closed again, the second coil spring twists, meanwhile, under the action of the second spring 20, the cavity 12 and the sliding block 10 are closed, the second spring 20 contracts, and under the action of the second spring 20, the pulling rope is pulled straight. The next use of the insulated carrier 3 is facilitated.
Claims (8)
1. A safety method for enabling a lightning arrester line to enter an equipotential state in an electrified way is characterized by comprising the following steps: step a, wearing a whole set of shielding clothes on the ground; b, carrying an insulated carrier to climb the iron stand upwards to the height of the electric wire; step c, one end of the insulated carrier is erected on an iron stand, the other end of the insulated carrier is erected on the electric wire, and then the insulated carrier travels from the iron stand to the electric wire;
the insulated carrier in the step c comprises a plurality of support rods, a connecting rod is arranged between the support rods, two ends of the connecting rod are connected with the support rods on two sides of the connecting rod, one end of each support rod is provided with a buffer rod fixedly connected with an iron frame, and a coil spring is arranged at the hinged position of the buffer rod and the support rods;
the utility model discloses a buffer structure, including buffer rod, bracing piece, slider, stopper, piston rod, articulated, be equipped with the oilhole that crosses that is used for fluid to pass through on the piston, the one end that lies in the piston rod and keep away from the piston is worn out the cavity and is connected with the slider, the buffer rod is kept away from bracing piece one side sliding connection and is had the slider that leans on the horizontal pole upside at the iron stand, the one end rigid coupling that the buffer rod was kept away from to the slider has the stopper that prevents the horizontal pole roll-off, the buffer rod articulates in the slider below has the latch hook that is used for withholding the horizontal pole, the upper end of latch hook is the hinged end, be equipped with the piston rod on the cavity and keep away from the one end of piston and wear out the cavity and be connected with the latch.
2. The safety method for the charged entrance of the lightning arrester line into the equipotential according to claim 1, wherein the voltage of the electric wire in the step b is 220kv, the distance between the human body and the electric wire in the climbing process is greater than or equal to 2m, the distance between the human body and the iron stand in the walking process is L, the distance between the human body and the electric wire is H, L + H >2.3m, the distance between the human body and the cross arm after reaching the electric wire is greater than or equal to 2m, and the distance between the human body and the iron stand is greater than or equal to 2 m.
3. The safety method for the charged entrance of the arrester wire into the equipotential according to claim 1, wherein the buffer rod is fixedly connected with a fixed block above the sliding block, the fixed block is connected with a spring, one end of the spring, which is far away from the fixed block, is connected with the sliding block, and a second spring is arranged in the cavity and is positioned on one side of the piston, which is far away from the piston rod.
4. The safety method for the charged entrance of the lightning arrester line to the equipotential according to claim 1, wherein the buffer rod is provided with a sliding groove, the cross section of the sliding groove is in a convex shape, and one end of the sliding block, which is close to the buffer rod, is matched with the sliding groove and is slidably connected in the sliding groove.
5. The safety method for the charged entrance of the arrester wire into the equipotential according to claim 4, wherein the buffer rod is fixedly connected with a second fixed block abutting against the upper side of the cross rod of the iron frame at a position corresponding to the latch hook, the upper end of the latch hook is hinged with one end of the second fixed block far away from the buffer rod, the upper end of the latch hook is fixedly connected with a handle, the damper is slidably connected in the chute, a rope groove is formed in the second fixed block, the lower end of the chute is communicated with the rope groove, the lower end of the chute is provided with a steering shaft for steering the pull rope, and one end of the pull rope far away from the damper passes through the rope groove after bypassing the steering shaft and is connected with the handle.
6. The safety method for the lightning arrester to enter the equipotential when the line is electrified according to claim 5, wherein a keyhole is arranged on the handle, a locking rod is fixedly connected to one end, away from the buffer rod, of the second fixing block, a plug pin is inserted into the locking rod, and when the cross rod is buckled by the locking hook, the plug pin is inserted into the keyhole.
7. The method for safely entering the equipotential system by electrifying the lightning arrester line according to claim 6, wherein in the step c, the specific method for erecting the insulated carrier is as follows: the slider is abutted against the upper side of one cross rod firstly, then under the dead weight of the insulated delivery vehicle, the handle is pulled by the pull rope, the latch hook is opened, the second fixed block slowly moves towards the other cross rod, the cross rod abutted against the slider is a first cross rod, the other cross rod is a second cross rod, when the second fixed block is abutted against the upper side of the second cross rod, the latch hook rotates downwards under the action of a second coil spring, finally the latch hook buckles the second cross rod, then the latch pin is inserted, the latch pin penetrates through the lock hole and the locking rod, so that the latch hook is prevented from being opened, then the support rod slowly rotates, the support rod rotates towards the electric wire, and finally the end part of.
8. The method for safely entering an equipotential system according to claim 3, 4, 5, 6, or 7, wherein the number of the support bars is two, the support bars include a first bar and a second bar, an included angle between the first bar and the second bar is an obtuse angle, the first bars of the two support bars are parallel to each other, and the second bars of the two support bars are parallel to each other.
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| CN201910882041.0A CN110707595B (en) | 2019-09-18 | 2019-09-18 | Safety method for lightning arrester line to enter equipotential in live state |
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| CN103715630A (en) * | 2013-12-16 | 2014-04-09 | 国家电网公司 | Method for entering same-tower double-circuit alternating-current transmission line tangent tower equal potential |
| CN105134063A (en) * | 2015-09-24 | 2015-12-09 | 江苏省电力公司宝应县供电公司 | Slide ladder for on-line operation |
| CN106356763A (en) * | 2016-10-21 | 2017-01-25 | 国网湖南省电力公司带电作业中心 | Method for entering equal potential of compact type electric transmission line and used folding ladder |
| CN109802329A (en) * | 2019-01-31 | 2019-05-24 | 中国电力科学研究院有限公司 | Electrification enters 750 kilovolts of quadri-circuit lines on the same tower road equipotential methods |
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| CN2094812U (en) * | 1990-12-21 | 1992-01-29 | 宁夏电力工业局银南供电局 | Equal potential insulator changing tool |
| CN101567530A (en) * | 2009-06-03 | 2009-10-28 | 国网电力科学研究院 | Safe method for entering tangent tower equal potentials for live-wire operation in 660kV direct current lines |
| CN103715630A (en) * | 2013-12-16 | 2014-04-09 | 国家电网公司 | Method for entering same-tower double-circuit alternating-current transmission line tangent tower equal potential |
| CN105134063A (en) * | 2015-09-24 | 2015-12-09 | 江苏省电力公司宝应县供电公司 | Slide ladder for on-line operation |
| CN106356763A (en) * | 2016-10-21 | 2017-01-25 | 国网湖南省电力公司带电作业中心 | Method for entering equal potential of compact type electric transmission line and used folding ladder |
| CN109802329A (en) * | 2019-01-31 | 2019-05-24 | 中国电力科学研究院有限公司 | Electrification enters 750 kilovolts of quadri-circuit lines on the same tower road equipotential methods |
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