CN111293626A - Live replacement method based on lightning protection device - Google Patents
Live replacement method based on lightning protection device Download PDFInfo
- Publication number
- CN111293626A CN111293626A CN201811495437.1A CN201811495437A CN111293626A CN 111293626 A CN111293626 A CN 111293626A CN 201811495437 A CN201811495437 A CN 201811495437A CN 111293626 A CN111293626 A CN 111293626A
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- China
- Prior art keywords
- protection device
- lightning protection
- wire
- lead
- short
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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
-
- 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
- H02G15/00—Cable fittings
- H02G15/02—Cable terminations
- H02G15/04—Cable-end sealings
- H02G15/043—Cable-end sealings with end caps, e.g. sleeve closed at one end
Abstract
The invention is suitable for the technical field of power distribution, and provides a live replacement method based on a lightning protection device, which comprises the following steps: step S1: opening an insulating layer on the outer surface of the lead; step S2: installing a short-circuit wire bracket and a short-circuit wire; step S3: detaching the lead connected with the old lightning protection device, and sleeving insulating sleeves at two ends of the lead; step S4: installing the new lightning protection device on the installation base; step S5: pulling out the insulating sleeves at the two ends of the lead, and electrically connecting the new lightning protection device with the lead; step S6, removing the short-circuit wire support and the short-circuit wire, and sealing the opening of the lead by using an insulating adhesive tape; compared with the existing replacement method, the novel live replacement method based on the lightning protection device reduces the possibility of electric shock of maintenance personnel while meeting live replacement, improves the safety factor, avoids safety accidents and is safe and convenient to use.
Description
Technical Field
The invention belongs to the technical field of power distribution, and particularly relates to a live replacement method based on a lightning protection device.
Background
The replacement of the fault lightning protection device is the work which is frequently carried out by measurement professional workers of a power supply company, the percentage is more than 80 percent in the measurement work, when the fault lightning protection device is replaced, the replacement can not be carried out after power failure measures are taken frequently due to the influence of the power supply mode or the power consumption property of customers, and the replacement needs to be carried out in a charged mode, at the moment, after the fault lightning protection device is removed, the wiring end of the original lightning protection device is exposed, although the exposed wire end can be wrapped by insulating adhesive tapes for safety, the wrapping and the removal of the adhesive tapes are troublesome, and in the actual charged replacement work, the workers often do not wrap,
the existing replacement method is very easy to cause personal electric shock or short circuit arc burn in the process of replacing the lightning protection device, and meanwhile, after the fault lightning protection device is disassembled, the wire can fall downwards under the action of gravity and needs to be fixed manually, the improper operation can cause electric shock, and serious personnel can cause electric shock death, so that the great personal risk is realized.
Disclosure of Invention
The invention provides an electrified replacing method based on a lightning protection device, and aims to solve the problems that in the existing replacing method, a person is easily subjected to electric shock or short-circuit arc burn in the process of replacing the lightning protection device, and meanwhile, after the fault lightning protection device is removed, a wire falls downwards under the action of gravity, needs to be fixed manually, is subjected to electric shock due to improper operation, can seriously cause electric shock and death of the person, and has serious personal risk.
The invention is realized in such a way that an electrified replacing method based on a lightning protection device comprises the following steps:
step S1: opening the insulating layers on the outer surfaces of the leads at two ends of the old lightning protection device;
step S2: the short-circuit wire is arranged on the mounting base through the short-circuit wire bracket, the opening of the lead is electrically connected by using the short-circuit wire,
step S3: dismantling the old lightning protection device and the lead connected with the old lightning protection device, and sleeving the insulating sleeves at two ends of the lead;
step S4: detaching the old lightning protection device from the installation base, and installing a new lightning protection device on the installation base;
step S5: pulling out the insulating sleeves at the two ends of the lead, and electrically connecting the new lightning protection device with the lead;
step S6: and removing the short-wiring line from the lead, removing the short-wiring line bracket from the mounting base, and sealing the opening of the lead by using an insulating adhesive tape.
Preferably, in step S1, wire strippers are used, and the wire strippers are special insulation wire strippers for electricians.
Preferably, the openings at both ends of the conductive wire in step S1 are identical in size, and the length of the openings is between 2 cm and 3 cm.
Preferably, the shorting wire used in step S2 is a shorting wire with alligator clips at two ends, and the two alligator clips are matched with the openings.
Preferably, the insulating sleeve used in step S3 is a tapered sleeve, the thin end of the insulating sleeve is in a closed shape, the inner diameter of the thick end of the insulating sleeve is larger than the diameter of the conducting wire, and the thin end of the insulating sleeve is smaller than the diameter of the conducting wire.
Preferably, the shorting bar bracket is mounted on the mounting base by a nut, and the shorting bar is located inside the shorting bar bracket.
Preferably, in step S3, the live end of the lead is sleeved with the insulating sleeve immediately after one lead is removed.
Preferably, in step S5, when the new lightning protection device is electrically connected to the conductor, the insulation sheath on the conductor is removed, and then the conductor is electrically connected to the new lightning protection device.
Preferably, the short-circuit wire support is U-shaped and made of plastic.
Preferably, the insulating sleeve is only suitable for the wires with the cross section of less than four square millimeters.
Compared with the prior art, the invention has the beneficial effects that: the live replacement method based on the lightning protection device prevents electric shock accidents by arranging the short-circuit wire support and the insulating sleeve, when the lightning protection device is replaced, the short-circuit wire is installed on the installation base through the short-circuit wire support, the opening of the lead is electrically connected by using the short-circuit wire, the old lightning protection device and the lead connected with the lightning protection device are disassembled, the insulating sleeve is sleeved on the two ends of the lead, when the lightning protection device is replaced, the insulating sleeve prevents maintenance personnel from contacting with the live end of the lead, meanwhile, the lead does not fall down after being disassembled, the lead does not need to be fixed manually, the possibility of electric shock is reduced, compared with the existing replacement method, the novel live replacement method based on the lightning protection device reduces the possibility of electric shock of maintenance personnel while satisfying live replacement, the safety factor is improved, the safety accident is avoided, and the use is safe and convenient.
Drawings
FIG. 1 is a schematic flow chart of the present invention;
FIG. 2 is a schematic structural diagram of a lightning protection device according to the present invention;
FIG. 3 is a schematic view of the structure of the insulating sleeve of the present invention;
in the figure: 1-lead, 2-short-circuit wire, 3-opening, 4-short-circuit wire bracket, 5-mounting base, 6-lightning protection device and 7-insulating sleeve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-3, the present invention provides a technical solution: an electrified replacing method based on a lightning protection device comprises the following steps:
step S1: opening 3 an insulating layer on the outer surface of the lead 1 at two ends of the old lightning protection device 6;
step S2: the short-circuit wire 2 is mounted on the mounting base 5 through the short-circuit wire holder 4, the opening 3 of the lead 1 is electrically connected by using the short-circuit wire 2,
step S3: dismantling the old lightning protection device 6 and the lead 1 connected with the old lightning protection device, and sleeving insulating sleeves 7 on two ends of the lead 1;
step S4: detaching the old lightning protection device 6 from the installation base 5, and installing the new lightning protection device 6 on the installation base 5;
step S5: the insulation sleeves 7 at the two ends of the lead 1 are pulled out, and the new lightning protection device 6 is electrically connected with the lead 1;
step S6: removing the short-circuit wire 2 from the lead 1, removing the short-circuit wire bracket 4 from the mounting base 5, and sealing the opening 3 of the lead 1 by using an insulating adhesive tape;
step S7: and after the site is cleaned, the lightning protection device 6 is replaced.
In the embodiment, the insulating sleeve 7 is arranged to prevent electric shock, and after one wire 1 is detached, the insulating sleeve 7 is immediately sleeved on the live end of the wire 1, so that the operation method effectively prevents maintenance personnel from electric shock, reduces the exposure time of the live end of the wire 1, and is safer to use.
In the embodiment, the short-circuit wire support 4 and the insulating sleeve 7 are arranged to prevent electric shock accidents, the insulating layers on the outer surfaces of the wires 1 at two ends of the old lightning protection device 6 are subjected to opening 3, when the insulating layers on the outer surfaces of the wires 1 at two ends of the old lightning protection device 6 are subjected to opening 3, the wires 1 are not powered off at the moment, and a maintenance worker uses an electrician-specific insulating wire stripper to strip the insulating layers on the outer surfaces of the wires 1, so that the use is safer; installing a short-circuit wire 2 on an installation base 5 through a short-circuit wire support 4, electrically connecting openings 3 of a lead 1 by using the short-circuit wire 2, respectively clamping the openings 3 at two ends of the lead 1 by using alligator clips at two ends of the short-circuit wire 2, completing the electrical connection of the openings 3 at two ends, dismantling an old lightning protection device 6 and the lead 1 connected with the old lightning protection device, and sleeving insulating sleeves 7 at two ends of the lead 1; after the fault lightning protection device is removed, the wiring end of the original lightning protection device is exposed, for the sake of safety, although the exposed end can be wrapped by an insulating tape, the wrapping and the removal of the insulating tape are troublesome, in the actual live replacement work, workers often do not wrap, the novel insulating sleeve 7 is more convenient to use, and meanwhile, the situation that the users contact the conductive end of the lead 1 can be effectively avoided; the operation method has the advantages that the insulation sleeve 7 on the lead 1 is firstly removed, and then the lead 1 is electrically connected with the new lightning protection device 6, so that maintenance personnel are effectively prevented from electric shock, the exposure time of the live end of the lead 1 is reduced, and the use is safer; the short-circuit wire 2 is arranged on the mounting base 5 through the short-circuit wire bracket 4, and the crocodile clip fixes the lead wire 1; make wire 1 not rock easily, prevent that maintenance personal from touching the electrified end of wire 1, wire 1 can not drop after demolising simultaneously, does not need the manual work to fix it, reduces the electric shock probably, current replacement method compares, neotype because lightning protection device uses electrified replacement method, when satisfying electrified change, has reduced the possibility that maintenance personal electrocuted, has improved factor of safety, has avoided the emergence of incident, and it is safe and convenient to use.
Further, in step S1, wire strippers are used, and the wire strippers are special insulation wire strippers for electricians.
In the embodiment, when the insulation layers on the outer surfaces of the wires 1 at two ends of the old lightning protection device 6 are opened 3, the wires 1 are not powered off, and the maintenance personnel use the insulation wire stripper special for electricians to strip the insulation layers on the outer surfaces of the wires 1, so that the use is safer.
Further, the openings 3 at both ends of the lead 1 are uniform in size in step S1, and the length of the openings 3 is between 2 cm and 3 cm.
In the embodiment, when the two ends of the lead 1 are opened, the lengths of the two openings 3 are kept between 2 cm and 3 cm, so that the short-circuit wires can be conveniently installed subsequently, and meanwhile, the opening 3 can be more conveniently insulated and sealed subsequently.
Further, the jumper 2 used in step S2 is a jumper 2 with alligator clips at both ends, and the two alligator clips are matched with the opening 3.
In this embodiment, when using, the crocodile clip at 2 both ends of shorting stub is cliied the opening 3 at 1 both ends of wire respectively, accomplishes both ends opening 3's electric connection this moment, simultaneously, because shorting stub 2 passes through shorting stub support 4 to be installed at mounting base 5, and the crocodile clip is fixed wire 1 this moment.
Further, the insulating sleeve 7 used in step S3 is a tapered sleeve, the thin end of the insulating sleeve 7 is sealed, the inner diameter of the thick end of the insulating sleeve 7 is larger than the diameter of the lead 1, and the thin end of the insulating sleeve 7 is smaller than the diameter of the lead 1.
In this embodiment, prevent to electrocute through setting up insulating cover 7, demolish trouble lightning protection device after, former lightning protection device wiring end of a thread exposes, for safety, though can wrap up exposed end of a thread with insulating tape, it is all more troublesome nevertheless to wrap up and demolish the adhesive tape, in the change work of actual electrified, the staff often does not wrap up, neotype insulating cover 7 uses more conveniently, can effectively avoid the user of service to contact the electrically conductive end of wire 1 simultaneously.
Further, the shorting terminal bracket 4 is mounted on the mounting base 5 by a nut, and the shorting terminal 2 is located inside the shorting terminal bracket 4.
In this embodiment, fix through setting up shorting stub support 4, when using, install shorting stub support 4 on mounting base 5 through the nut, because shorting stub 2 is located the inside of shorting stub support 4 this moment to shorting stub 2 fixes through alligator clip and wire 1 for wire 1 does not rock easily.
Further, in step S3, immediately after removing one of the wires 1, the live end of the wire is sleeved with the insulating sleeve 7.
In the embodiment, the insulating sleeve 7 is arranged to prevent electric shock, and after one wire 1 is detached, the insulating sleeve 7 is immediately sleeved on the live end of the wire 1, so that the operation method effectively prevents maintenance personnel from electric shock, reduces the exposure time of the live end of the wire 1, and is safer to use.
Further, in step S5, when electrically connecting the new lightning protection device 6 to the lead 1, the insulation sheath 7 on the lead 1 is removed, and then the lead 1 is electrically connected to the new lightning protection device 6.
In the embodiment, when the new lightning protection device 6 is electrically connected with the wire 1, the insulation sleeve 7 on the wire 1 is firstly removed, and then the wire 1 is electrically connected with the new lightning protection device 6 immediately.
Further, the short-circuit wire support 4 is set to be U-shaped, and the short-circuit wire support 4 is made of plastic materials.
In this embodiment, when using, install shorting stub support 4 on mounting base 5 through the nut, because shorting stub 2 is located shorting stub support 4's inside this moment to shorting stub 2 fixes through alligator clip and wire 1, makes wire 1 not rock easily, and shorting stub support 4 is the plastics material, prevents to touch wire 1 at shorting stub support 4 and electrically conducts, and it is safer to use.
Further, the insulating sheath 7 is applicable only to the wire 1 having a cross section of four square millimeters or less.
In the present embodiment, the insulating sheath 7 is applied only to the lead 1 having a cross section of four square millimeters or less, and when the cross section of the lead 1 is four square millimeters or more, the insulating sheath 7 conducts electricity excessively due to a voltage.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An electrified replacing method based on a lightning protection device is characterized in that: the method comprises the following steps:
step S1: opening the insulating layers on the outer surfaces of the leads at two ends of the old lightning protection device;
step S2: the short-circuit wire is arranged on the mounting base through the short-circuit wire bracket, the opening of the lead is electrically connected by using the short-circuit wire,
step S3: dismantling the old lightning protection device and the lead connected with the old lightning protection device, and sleeving the insulating sleeves at two ends of the lead;
step S4: detaching the old lightning protection device from the installation base, and installing a new lightning protection device on the installation base;
step S5: pulling out the insulating sleeves at the two ends of the lead, and electrically connecting the new lightning protection device with the lead;
step S6: removing the short-circuit wire from the lead, removing the short-circuit wire support from the mounting base, and sealing an opening of the lead by using an insulating adhesive tape;
step S7: and after the scene is cleaned, the lightning protection device is replaced.
2. The live replacement method based on the lightning protection device according to claim 1, wherein: in the step S1, wire strippers are used, and the wire strippers are special insulation wire strippers for electricians.
3. The live replacement method based on the lightning protection device according to claim 1, wherein: the openings at the two ends of the conducting wire in the step S1 are consistent in size, and the length of the openings is between 2 and 3 centimeters.
4. The live replacement method for the lightning protection device according to claim 1 or 3, wherein: the shorting wire used in step S2 is a shorting wire with alligator clips at two ends, and the two alligator clips are matched with the openings.
5. The live replacement method based on the lightning protection device according to claim 1, wherein: the insulating sleeve used in the step S3 is a tapered sleeve, the thin end of the insulating sleeve is in a closed shape, the inner diameter of the thick end of the insulating sleeve is larger than the diameter of the conducting wire, and the thin end of the insulating sleeve is smaller than the diameter of the conducting wire.
6. The live replacement method based on the lightning protection device according to claim 1, wherein: the shorting stub support is installed on the installation base through a nut, and the shorting stub is located inside the shorting stub support.
7. The live replacement method based on the lightning protection device according to claim 1, wherein: in step S3, immediately after one of the leads is removed, the live end of the lead is sleeved with the insulating sleeve.
8. The live replacement method based on the lightning protection device according to claim 1, wherein: in step S5, when the new lightning protection device is electrically connected to the wire, the insulation sheath on the wire is removed, and then the wire is electrically connected to the new lightning protection device.
9. The live replacement method based on the lightning protection device according to claim 1, wherein: the short-circuit wire support is U-shaped and made of plastic.
10. The live replacement method based on the lightning protection device according to claim 1, wherein: the insulating sleeve is only suitable for the conducting wire with the cross section of less than four square millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811495437.1A CN111293626B (en) | 2018-12-07 | 2018-12-07 | Live replacement method based on lightning protection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811495437.1A CN111293626B (en) | 2018-12-07 | 2018-12-07 | Live replacement method based on lightning protection device |
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| CN111293626A true CN111293626A (en) | 2020-06-16 |
| CN111293626B CN111293626B (en) | 2021-09-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115173304A (en) * | 2022-07-13 | 2022-10-11 | 西安江夏电力设备制造有限公司 | Automatic hot-line work operating platform and method for replacing high-voltage equipment in bypass hot-line mode |
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| CN111293626B (en) | 2021-09-28 |
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