KR101634995B1 - Steel Cross-arm for preventing fall electric power transmission and distribution cable - Google Patents

Steel Cross-arm for preventing fall electric power transmission and distribution cable Download PDF

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Publication number
KR101634995B1
KR101634995B1 KR1020150164013A KR20150164013A KR101634995B1 KR 101634995 B1 KR101634995 B1 KR 101634995B1 KR 1020150164013 A KR1020150164013 A KR 1020150164013A KR 20150164013 A KR20150164013 A KR 20150164013A KR 101634995 B1 KR101634995 B1 KR 101634995B1
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South Korea
Prior art keywords
transmission
cable
distribution cable
cushion pad
support
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KR1020150164013A
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Korean (ko)
Inventor
이안수
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(주)영상엔지니어링
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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
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/18—Devices affording mechanical protection in the event of breakage of a line or cable, e.g. net for catching broken lines

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  • Electric Cable Installation (AREA)

Abstract

The present invention relates to a position fixing wire for preventing derailment of a transmission / distribution cable, and more particularly, to a position fixing wire for preventing derailment of a transmission / distribution cable when a transmission / distribution cable falls due to damage to a binding band or insulator, As the transmission / distribution cable is supported by the insulation buffer pad and is supported by the upper insulation cushion pad in an insulated state without falling down on the wire made of non-insulation material, it is possible to prevent electric power failure or fire accidents due to short circuit, And the transmission / distribution cable is maintained in an insulated state by the lower insulation cushion pad and the upper insulation cushion pad provided between the lower support and the upper support, and the shock generated when the transmission / distribution cable falls on the upper insulation cushion pad is alleviated To ensure that the transmission and distribution cables are not damaged So that they can support it.

Description

[0001] The present invention relates to a position fixing wire for preventing derailment of a transmission / distribution cable,

[0001] The present invention relates to a position fixing wire for preventing derailment of a transmission and distribution cable, and more particularly, to a position fixing wire for preventing the derailment of a transmission and distribution cable when a transmission and distribution cable supported at the upper end of an insulator perpendicular to the wire is derailed for various reasons, It is possible to prevent a power outage or a fire accident due to a short circuit, an electric shock, a short circuit by preventing the derailment by supporting the transmission cable before the direct contact with the material, The present invention relates to a position fixing wire for preventing derailment of a transmission / distribution cable.

In general, Jeonju is used as a support for AC distribution lines, such as a wooden column, a reinforced concrete column, and a steel column.

Cedar is commonly used for staple, but larch, spruce, and cypress are also used. Use a neck length of 7 to 16 m and a diameter of 14 to 27 cm, and allow the preservative to penetrate to prevent corrosion.

It is made of reinforced concrete with a length of 6 ~ 16m. Because of its good appearance, long life span, and economical efficiency, it gradually reduces the amount of wood and uses reinforced concrete.

At present, there is little use in the domestic market and reinforced concrete stock is mainly used.

Reinforced concrete is classified into RC (Reinforced concrete) electric pole and PC (Precasted concrete). Jeonju, which is currently used in Korea, is a PC pole.

Generally, in constructing the processed transmission line, as shown in Fig. 8, the brass rods 20 are fixedly mounted on the electric pole 10, and the transmission / distribution cable 40 is supported on the brass rods 20 via the insulators 30 .

7 and 8, the conventional electric pole 10 has a conical surface extending from the lower end to the upper end. Therefore, in order to install the electric distribution line in the electric pole 10, The wrought iron band 20 having the band portion 51 and the flat iron portion 52 is wound around the electric pole 10 and fixed with the bolts 53 and the nuts 54 The machine bolt 60 having the threaded portions 61 at both ends is passed through the flat iron portion 52 and the wrought iron 20 of the wrought iron band 30 and then the nut 61 is inserted into the threaded portion 61 formed at both ends of the machine bolt 60 The insulator 30 is fixed to the pole 10 by fixing the insulator 30 to the insulator 30 by fastening the insulator 30 to the insulator 30 by fastening the insulator 30 to the insulator 30, And are fastened by the bundling wire 80 to be fixed.

However, since the processed / distributed line is exposed to wind and sunlight in the atmosphere, the bundling wire 80 binding the transmission / distribution cable 40 to the upper end of the insulator 30 is deteriorated and the transmission / distribution cable 40 is disconnected from the insulator 30 When the transmission / distribution cable 40 falls over the bare metal 20, there is a possibility that the transmission / distribution cable 20 will be detached and fall over the bare metal 20. When the transmission / distribution cable 40 falls over the bare metal 20, And there is a risk of electric power failure and fire due to short-circuiting, electric shock and short-circuit.

As a prior art that takes this situation into consideration, Korean Registered Patent No. 10-1058907 (Registered on August 17, 2011) (hereinafter referred to as "Prior Art 1") and Korean Registered Patent No. 10-1352074 (Registered on April 1, 2014) Hereinafter referred to as "prior art 2") is known.

In the prior art 1, a plurality of engaging grooves are formed on the circumferential surface, and a shaft is rotatably fixed to the coarse iron via the upper and lower fixing rods; A torsion spring for elastically supporting the rotation of the shaft at both ends of the shaft; Wherein the inner surface of the through hole through which the shaft passes is formed with a plurality of hollows and a pitch formed on the outer surface thereof, a spring inserted into the hollow, a weight connected to the spring and movable along the hollow, An upper and a lower pinion projecting into the through hole and having projections connected to the weight, arranged in parallel with each other; A first and a second guide which are formed in an elongated shape and which have an opening formed in a surface thereof facing the transmission / distribution cable, and in which engaging holes are formed for engaging the upper and lower pinions with the racks of the first and second moving bodies; Wherein a rack is formed on the outer surface and has a bottom surface opened so as to be movably inserted into the opening of the first and second guides, the rack being engaged with the pitch of the body, the transmission and distribution cable being fixed at one end, 2 guides, and moves with the inner surfaces of the first and second guides as guides as the upper and lower pinions rotate, and a through hole is formed in the surface facing the inner surfaces of the first and second guides And the first and second moving bodies which are closed by the rubber film, the through-holes are kept at a constant tension regardless of the season, and when a momentary and sudden external force is applied to the transmission / distribution cable, And increase the stability and durability of the insulator and bare iron, and the transmission and distribution cable fixing device located in the bare iron can be removed by sudden external force. And a position fixing wire for preventing derailment of a transmission / distribution cable so as to prevent the wire from being broken.

However, in the prior art 1, when an instantaneous and sudden external force acts on the transmission / distribution cable, the external force is prevented from directly acting on the insulator and the coarse iron portion through the transmission / distribution cable and the influence of the external force is reduced to prevent derailment of the transmission / There is no means for preventing the transmission and distribution cable from falling off the insulator and falling over the rail, so that the fallen transmission and distribution cable is in direct contact with the non-insulated heavy wire, Or a fire accident can not be prevented.

In addition, the prior art 2 has a structure in which the above-mentioned prior art 2 is constituted of a solid body, a temporary plate, an insulator body, a rotary support casing, a sliding rack, first and second rotary units, first and second rotary support members, a sliding stopper unit, It is composed of a sensor and a control unit to prevent the breakage of the insulator and the disconnection of the distribution processing wire. It is possible to control the tension of the distribution processing wire between the pole and the pole so as to prevent the distribution processing wire from falling down. A position fixing wedge for preventing dislodgement of the positioning wedge.

In the prior art 2, the tension of the distribution processing wire is controlled to prevent the distribution processing wire from being sagged down, thereby preventing the breakage of the insulator and firmly supporting the distribution processing wire with respect to the insulator. Since there is no means to prevent the power distribution cable from derailing from the insulator and falling over the wire, it is possible to prevent the power line from falling, electric shock, It can not prevent a fire accident.

Therefore, when the transmission / distribution cable supported at the upper part of the insulator installed vertically to the bridge is derailed due to various causes and falls on the bridge, it is sensed and supported by the transmission / distribution cable before it comes into direct contact with the non- It is required to develop a technique for preventing a power failure or a fire accident caused by a short circuit.

Korean Registered Patent No. 10-1058907 (Registered on August 17, 2011) "Position fixing wire for preventing cable derailment" Korea Registered Patent No. 10-1352074 (Registered on April 1, 2014) "Fixed Position Wand to Prevent Deviation of Distribution Processing Wire"

Therefore, it is an object of the present invention to provide a transmission / distribution cable which is supported on the upper end of an insulator installed perpendicularly to a wire rod, detects a case where the transmission / It is possible to prevent power outage or fire accident due to short circuit, electric shock, short circuit by preventing derailment by supporting the transmission / distribution cable. In order to prevent the transmission / distribution cable from being damaged in this process, I would like to offer a rough iron.

In order to achieve the above-mentioned object, the present invention provides a method of manufacturing a power transmission cable, comprising the steps of fixing a wrought iron to a pole and supporting the power transmission and distribution cable through an insulator, The machine bolts having the threaded portions formed at both ends thereof are passed through the flat and iron bars of the coarse iron band and then the nut is fastened to the threaded portions formed at both ends of the machine bolt to fix the coarse iron to the ferrule, It prevents the transmission / distribution cable from coming into direct contact with the wire when the transmission / distribution cable deviates from the insulator and falls on the transmission / distribution line which is vertically installed and supports the transmission / distribution cable at the upper end of the insulator and is fixed by bundling wire. And the derailment preventing means A solenoid which is vertically installed in the housing and extends upwardly through an upper surface of the housing, and a solenoid fixed to the upper end of the lifting rod, A lower support which has a front and rear width larger than an interval between the transmission and reception cables supported by the insulator and a front and rear width corresponding to a gap between the both side wedge bars, an upper support which is spaced upward from the upper surface of the lower support, An upper insulation cushion pad attached to the upper surface of the upper support, a falling cable detection sensor installed on the upper insulation cushion pad to detect a transmission / distribution cable falling, When the fall of the transmission / distribution cable is not detected by the sensor, The lower support band, the upper support band, the lower insulation bandgap pad, and the upper insulation bandgap are lowered so that the upper insulation bandgap is maintained in a state of being coincident with the upper surface of the bandgap, When a fall of the transmission / distribution cable is detected by the detection sensor, the solenoid is controlled in an ascending direction so that the lifting rod rises and the transmission / distribution cable in which the lower support, upper support, lower insulation cushion pad, The lower support being formed in a flat plate shape, and the upper support is formed with an inclined extension portion that is inclined and bent so as to extend upward at both ends of the upper and lower supports, and the upper insulation cushion pad The lower surface of the front and rear ends of the upper support Wherein the lower insulation cushion pad is made of a rubber material having shock absorbing property and insulation property and has an inner space; a hollow insulation cushion plate having an inner space, Wherein the upper insulating cushion pad has a cable supporting groove formed in the upper surface in the left and right direction corresponding to the number of the transmission and distribution cables located on the upper portion of the upper insulating cushion pad, The present invention provides a position fixing wire for preventing derailment of a transmission / distribution cable including extension cable guiding pieces for guiding the transmission / distribution cable to the cable support grooves and a center cable guide piece.

According to the position fixing wire for preventing derailment of the transmission / distribution cable of the present invention, when the transmission / distribution cable is dropped due to damage to the coupling band or the insulator, the lower support band, the lower insulation band, It is supported by pads, and the transmission / distribution cable is supported in insulation state by the upper insulation cushion pad without falling on the cramp made of non-insulation material, preventing electric power failure or fire accident due to short circuit, And the transmission and distribution cable is maintained in an insulated state by the lower insulation cushion pad and the upper insulation cushion pad provided between the lower support and the upper support and the shock generated when the transmission and distribution cable falls on the upper insulation cushion pad is mitigated, The cables are not damaged and are safe. It is able to.

1 to 6 show a preferred embodiment of a position fixing wire for preventing derailment of a transmission and distribution cable according to the present invention,
FIG. 1 is a perspective view showing a processed transmission / distribution line to which a position fixing wire is applied to prevent derailment of a transmission / distribution cable according to the present invention,
FIG. 2 is an exploded perspective view showing a processed transmission / distribution line to which a position fixing wire is applied to prevent derailment of a transmission / distribution cable according to the present invention,
3 is an exploded perspective view showing a derailment preventing means according to the present invention,
4 and 5 are perspective views showing the operation of the derailment preventing means according to the present invention,
6 is a functional block diagram of derailment preventing means according to the present invention;
7 is a perspective view of a conventional processed / distributed line,
8 is an exploded perspective view of a conventional electric pole and a wagon.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a position fixing wire for preventing derailment of a transmission / distribution cable according to the present invention will be described in detail with reference to the preferred embodiments illustrated in the accompanying drawings.

In the following description, the longitudinal direction of the brass bars is referred to as the front-rear direction, and the direction orthogonal to the horizontal direction is defined as the left-right direction, and the right side will be described as forward and the left side as rearward.

FIG. 1 is a view showing a machined transmission / distribution line to which a position fixing wire is applied for preventing derailment of a transmission / distribution cable according to the present invention.

The processed transmission and distribution line is fixedly installed in the electric pole 10 and the transmission and distribution cable 40 is supported on the solid wire 20 through the insulator 30. The electric pole 10 is provided with the band portion 51, And the machine bolt 60 having the threaded portions 61 at both ends thereof is wound around the wrist band 10 by winding the wrist band 50 with the bolts 53 and the nuts 54, And the nuts 70 are fastened to the threaded portions 61 formed at both ends of the machine bolt 60 after passing through the flat portion 52 and the wrought iron portion 20 of the machine bolt 50, And the insulator 30 is vertically installed in the wire rods 20 so that the transmission and distribution cable 40 is supported on the upper end of the insulator 30 and is fastened and fixed by the bundle wire rods 80. [

The position fixing wire for preventing derailment of the transmission and distribution cable of the present invention prevents the transmission and distribution cable 40 from falling on the wire 20 and coming into direct contact when the transmission and distribution cable 40 deviates from the insulator 30 and falls down And further includes derailment preventing means (100).

The derailment preventing means 100 includes a housing 110 fixedly coupled to both sides of the brass bar 20 between both sides of the brass bar 20 and an elevation rod 121 vertically installed inside the housing 110, A solenoid 120 extending upwardly through an upper surface of the housing 110 and a transmission and distribution cable 40 connected to an upper end of the lifting rod 121 and supported by the insulator 30, A lower support 130 having a front and rear width corresponding to a width of the lower support 130 and an upper support 140 separated from the upper surface of the lower support 130, An upper insulating cushion pad 160 attached to the upper surface of the upper support 140 and a lower insulating cushion pad 160 installed between the upper insulating cushion pad 160 and the upper support 140. [ A falling cable detection sensor 170 for detecting a falling transmission / distribution cable, The lifting operation rod 121 is lowered by controlling the solenoid 120 in the descending direction in a state where the fall of the transmission / distribution cable 40 is not detected by the cable detection sensor 170, The lower insulation cushion pad 150 and the upper insulation cushion pad 160 are lowered so that the upper insulation cushion pad 160 is maintained in a state of coinciding with the upper surface of the crown 20, When the fall of the transmission / distribution cable 40 is sensed by the sensor 170, the solenoid 120 is elevated so that the lifting rod 121 rises and the lower and upper supports 140, And a control unit 180 for controlling the transmission and distribution cable 40 to be supported on the insulating buffer pads 160 while the insulating buffer pads 150 and the upper insulating buffer pads 160 rise.

The enclosure 110 may be configured such that the front surface is provided on the front side and the rear surface is provided on the rear side. However, detailed description thereof will be omitted.

A mounting piece 111 extending upward is formed on left and right upper ends of the housing 110 and a bolt 112 passing through the mounting piece 111 and the wrought iron 20 in the left and right direction and a nut 113 fastened to the mounting piece 111, It can be mounted between the right and left rigid bars 20.

The solenoid 120 is fixed to the bottom of the housing 110 and vertically installed so that the lifting rod 121 is located at the top. The solenoid 120 can be mounted by forming a mounting flange (not shown) at the lower end and fastening a bolt (not shown) through the mounting flange to the bottom of the housing 110 And the detailed description thereof will be omitted.

A coupling flange 122 for coupling the lower support 130 is formed on the upper end of the lifting rod 120.

The lower support 130 and the upper support 140 are formed of a metal plate and the lower insulation cushion pad 150 and the upper insulation cushion pad 160 are formed of a rubber material having shock absorbing and insulation properties.

A bolt (not shown) passing through the lower supporter 130 may be fastened to the coupling flange 122 to engage the bottom of the lower supporter 130 and the upper end of the lifting rod 121, A specific illustration and description thereof will be omitted.

The lower support table 130 is formed in a flat plate shape and the upper support table 140 may be formed in the same flat plate shape as the lower support table 130. In order to prevent the transmission and distribution cable 40 from falling, And the upper and lower ends of the upper insulating cushion pad 160 are formed as inclined surfaces corresponding to the inclined extension 141 of the upper support 140. The inclined extension 141 is formed to be inclined .

The lower insulation cushion pad 150 may be formed of a simple rubber material, but may be a hollow insulation cushion 151 formed of a rubber material having impact absorbability and insulation and having an inner space, And an insulating oil 152 injected into the inner space of the housing.

The lower surface and the upper surface of the hollow insulation buffer plate 151 constituting the lower insulation buffer pad 150 are respectively adhered to the upper surface of the lower supporter 130 and the lower surface of the upper supporter 140 by an adhesive, The lower surface of the pad 160 may be adhered to the upper surface of the upper support 140 by an adhesive.

The upper insulation cushion pad 160 has a cable support groove 161 formed on the upper surface of the upper insulation cushion pad 160 and extending in the left and right direction corresponding to the number of the transmission and distribution cables 160 located above the upper insulation cushion pad 160, Side cable guide piece 162 and a center cable guide piece 163 extending upward in the front and rear direction of the groove 161 and guiding the transmission / distribution cable 40 to the cable support groove 161 are provided.

The width of the cable support groove 161 in the forward and backward direction is set to a width corresponding to the diameter of the transmission and distribution cable 40 so that it does not flow in the forward and backward directions when the transmission and distribution cable 40 is inserted into the cable support groove 161 .

The both cable guide pieces 162 prevent the transmission and distribution cable 40 falling to both the front and rear ends of the upper insulation cushion pad 160 from being displaced to the outside in the front and rear direction of the upper insulation cushion pad 160, And is formed to be inclined downward from the outside toward the inside.

The center cable guide piece 163 is for guiding the falling transmission / distribution cable 40 to be inserted into the cable support groove 161, and is formed to be inclined downward in the longitudinal direction at the center.

The two side cable guide pieces 162 and the center side cable guide pieces 163 may be formed to have a width corresponding to the lateral width of the upper insulating cushion pad 160. However, It is preferable that they are formed in the shape of ribs.

A protrusion P1 is formed on the lower surface of the upper insulation cushion pad 160 and the cable support groove 161 is formed on the upper surface of the upper insulation cushion pad 160. Grooves G1 A protrusion P2 is formed on the lower surface of the upper supporter 140. The protrusion P2 is formed on the lower surface of the upper supporter 140. The protrusion P2 is formed on the upper surface of the lower insulator pad 150, A groove G2 is formed.

The falling cable detection sensor 170 may use an ultrasonic sensor or an optical sensor. Also, it is preferable that the falling cable detection sensor 170 is directed to the transmission / distribution cable 40 supported by the insulator 30 so that the falling cable can be detected early.

The control unit 180 may be manufactured in a module form and mounted inside the housing 110. A battery BAT may be installed in the housing 110 to supply power to the falling cable detection sensor 170, the controller 180, and the solenoid 120.

Hereinafter, a process for preventing derailment of the transmission / distribution cable 40 by the position fixing wire for preventing derailment of the transmission / distribution cable of the present invention will be described.

When the transmission / distribution cable 40 is dropped from the insulator 30 and falls due to the damage of the binding wire 80 binding the transmission / distribution cable 40 to the insulator 30 or the damage of the insulator 30, The transmission and distribution cable 170 of the falling cable detection sensor 170 is detected and the cable falling detection signal of the falling cable detection sensor 170 is transmitted to the control unit 180.

When the cable fall detection signal is transmitted to the control unit 180, the control unit 180 outputs a rising driving command to the solenoid 120 so that the solenoid 120 is elevated, A lower insulating support cushion pad 150 coupled to the upper portion of the lower support cushion 130 and a lower insulating cushion pad 150 coupled to the upper end of the lower insulation cushion pad 150, The upper insulating support buffer 140 and the upper insulating buffer pad 160 coupled to the upper portion of the upper support 140 are raised so that the upper insulation buffer 140 and the upper insulation support buffer 160 are separated before the transmission / distribution cable 40 falls to the upper surface of the hollow iron 20. [ The pad 160 is received by the transmission / distribution cable 40 in which the pad 160 falls.

The transmission and distribution cable 40 supported by the upper insulation cushion pad 160 is guided along the inclined surfaces of the cable guide pieces 162 and the center cable guide piece 163 to be inserted and supported in the cable support groove 161.

When the transmission / distribution cable 40 falls to the outside of the front and rear insulators 30, it is guided to the cable support grooves 161 by the cable guide pieces 162 on both sides of the upper insulation cushion pad 160 , And when the transmission / distribution cable 40 falls inward between the front and rear insulators 30, the cable guide member 162 guides the cable to the cable support groove 161 (see FIG. 5).

The lifting operation rod 121 of the solenoid 120 operates until the cable support groove 161 of the upper insulation cushion pad 160 reaches the upper end of the insulator 30, The cable 40 is lifted to a height that was supported by the insulator 30.

At this time, since the transmission / distribution cable 40 is inserted and supported in the cable support groove 161 of the upper support 160, the transmission / distribution cable 40 does not fall again and the damaged cable 80 or the insulator 30 (See Figs. 4 and 5 above).

When the transmission / distribution cable 40 falls due to the damage of the bundling wire 80, the insulator 30 is held in a state of being fixed to the bare iron 20. Therefore, The maximum rising height may be set to a position lower than the upper end of the insulator 30. [

Therefore, according to the position fixing wire for preventing the derailment of the transmission / distribution cable of the present invention, when the transmission / distribution cable 40 falls due to damage to the coupling band 80 or damage to the insulator 30, The cable is supported by the support base 130, the lower insulation cushion pad 150, the upper support cushion 140 and the upper insulation cushion pad 160 so that the transmission and distribution cable 40 does not fall over the cushion 20 made of non- It is possible to prevent a power failure or a fire accident due to a short circuit, an electric shock, a short circuit due to the fall of the transmission / distribution cable 40 because the insulation buffer pad 160 is supported in an insulated state.

The transmission / distribution cable 40 is maintained in an insulated state by the lower insulation cushion pad 150 and the upper insulation cushion pad 160 provided between the lower support table 130 and the upper support table 140, and the transmission / It is possible to relieve the impact generated when the upper insulating cushion pad 160 falls, so that the transmission / distribution cable 40 can be safely supported without being damaged.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or essential characteristics thereof. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10: Jeonju 20: Wanchul
30: Insulator 40: Transmission and distribution cable
100: derailment preventing means 110:
120: Solenoid 121: Lifting rod
130: lower support 140: upper support
150: lower insulating buffer pad 151: hollow insulating buffer plate
152: Insulation oil 160: Upper insulation cushion pad
161: Cable support groove 162: Both cable guide pieces
163: Central cable guide 170: Falling cable detection sensor
180:

Claims (1)

The band iron 51 and the flat iron portion 52 are fixed to the electric pole 10 by fixing the solid iron 20 to the electric pole 10 and supporting the transmission and distribution cable 40 through the insulator 30 to the solid iron 20, And the machine bolt 60 having the threaded portions 61 at both ends thereof is fixed to the flat surface of the wrought iron band 50. The wrought iron band 50 is wound around the electric pole 10 by bolts 53 and nuts 54, And the nuts 70 are fastened to the threaded portions 61 formed at both ends of the machine bolt 60 so that the wrought iron 20 is fixed to the electric pole 10, The insulator 30 is vertically installed on the rigid iron 20 so that the transmission and distribution cable 40 is supported on the upper end of the insulator 30 and bundled and fixed by the bundle wire 80. The transmission and distribution cable 40 ) For avoiding direct contact of the transmission / distribution cable (40) on the wrought iron (20) when it derails from the insulator (30) 100,
The derailment preventing means 100 includes a housing 110 fixedly coupled to both sides of the brass bar 20 between both sides of the brass bar 20 and an elevation rod 121 vertically installed inside the housing 110, A solenoid 120 extending upwardly through an upper surface of the housing 110 and a transmission and distribution cable 40 connected to an upper end of the lifting rod 121 and supported by the insulator 30, A lower support 130 having a front and rear width corresponding to a width of the lower support 130 and an upper support 140 separated from the upper surface of the lower support 130, An upper insulating cushion pad 160 attached to the upper surface of the upper support 140 and a lower insulating cushion pad 160 installed between the upper insulating cushion pad 160 and the upper support 140. [ A falling cable detection sensor 170 for detecting a falling transmission / distribution cable, The lifting operation rod 121 is lowered by controlling the solenoid 120 in the descending direction in a state where the fall of the transmission / distribution cable 40 is not detected by the cable detection sensor 170, The lower insulation cushion pad 150 and the upper insulation cushion pad 160 are lowered so that the upper insulation cushion pad 160 is maintained in a state of coinciding with the upper surface of the crown 20, When the fall of the transmission / distribution cable 40 is sensed by the sensor 170, the solenoid 120 is elevated so that the lifting rod 121 rises and the lower and upper supports 140, And a control unit 180 for controlling the transmission and distribution cable 40 to be supported on the insulating buffer pads 160 while the insulating buffer pads 150 and the upper insulating buffer pads 160 rise,
The upper support 140 is formed with an inclined extension 141 that is inclined and bent upward to extend upward at both ends of the upper support 140, The lower surfaces of the front and rear ends are formed as inclined surfaces corresponding to the inclined extension 141 of the upper support 140,
The upper insulation cushion pad 160 has a cable support groove 161 formed on the upper surface of the upper insulation cushion pad 160 and extending in the left and right direction corresponding to the number of the transmission and distribution cables 160 located above the upper insulation cushion pad 160, A pair of cable guide pieces 162 and a center cable guide piece 163 extending upward in the front and rear direction of the groove 161 to guide the transmission and distribution cable 40 to the cable support groove 161,
The both cable guide pieces 162 prevent the transmission and distribution cable 40 falling to both the front and rear ends of the upper insulation cushion pad 160 from being displaced to the outside in the front and rear direction of the upper insulation cushion pad 160, And is inclined downwardly inwardly from the outside in order to guide it to be inserted into the opening 161,
The center cable guide piece 163 is for guiding the falling transmission / distribution cable 40 to be inserted into the cable support groove 161, and is formed to be inclined downward in the longitudinal direction at the center,
The two side cable guide pieces 162 and the center side cable guide piece 163 are formed in a plurality of ribs having a predetermined thickness,
A protrusion P1 is formed on the lower surface of the upper insulation cushion pad 160 and the cable support groove 161 is formed on the upper surface of the upper insulation cushion pad 160. Grooves G1 A protrusion P2 is formed on the lower surface of the upper supporter 140. The protrusion P2 is formed on the lower surface of the upper supporter 140. The protrusion P2 is formed on the upper surface of the lower insulator pad 150, A groove G2 is formed,
The lower insulation cushion pad 150 is formed of a rubber material having shock absorbing and insulation properties and includes a hollow insulation insulation buffer plate 151 having an inner space and an insulation oil injected into the inner space of the hollow insulation insulation buffer 151 152) for preventing derailment of the transmission / distribution cable.
KR1020150164013A 2015-11-23 2015-11-23 Steel Cross-arm for preventing fall electric power transmission and distribution cable KR101634995B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102305530B1 (en) * 2021-03-02 2021-09-27 청목플러스 주식회사 Upper part support for electric pole
CN113488941A (en) * 2021-07-23 2021-10-08 余明谣 Power grid support frame for power transmission
KR20230001855A (en) * 2021-06-29 2023-01-05 한국전력공사 Cleat for installing cable in power distribution vertical route and method for routing cable using thereof

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Publication number Priority date Publication date Assignee Title
KR101058907B1 (en) 2011-02-09 2011-08-25 (합)동양엔지니어링 Steel crossarm for preventing derailment
KR101083415B1 (en) * 2011-09-21 2011-11-14 (주)전우종합기술 Steel crossarm for preventing electric shock
KR101352074B1 (en) 2013-11-13 2014-01-15 양정모 Supporting bar for preventing separation of overhead distribution line
KR101485160B1 (en) * 2014-06-27 2015-01-28 홍현자 Distribution box supporter of overhead electric power distribution line

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101058907B1 (en) 2011-02-09 2011-08-25 (합)동양엔지니어링 Steel crossarm for preventing derailment
KR101083415B1 (en) * 2011-09-21 2011-11-14 (주)전우종합기술 Steel crossarm for preventing electric shock
KR101352074B1 (en) 2013-11-13 2014-01-15 양정모 Supporting bar for preventing separation of overhead distribution line
KR101485160B1 (en) * 2014-06-27 2015-01-28 홍현자 Distribution box supporter of overhead electric power distribution line

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KR102305530B1 (en) * 2021-03-02 2021-09-27 청목플러스 주식회사 Upper part support for electric pole
KR20230001855A (en) * 2021-06-29 2023-01-05 한국전력공사 Cleat for installing cable in power distribution vertical route and method for routing cable using thereof
KR102493812B1 (en) * 2021-06-29 2023-02-06 한국전력공사 Cleat for installing cable in power distribution vertical route and method for routing cable using thereof
CN113488941A (en) * 2021-07-23 2021-10-08 余明谣 Power grid support frame for power transmission
CN113488941B (en) * 2021-07-23 2023-08-22 湛江市珠江电力设备安装有限公司 Electric power grid support frame for electric power transmission

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