CN110224348A - A kind of live line connection method at the interior electrification position of isolation low-voltage cable junction box - Google Patents
A kind of live line connection method at the interior electrification position of isolation low-voltage cable junction box Download PDFInfo
- Publication number
- CN110224348A CN110224348A CN201910522722.6A CN201910522722A CN110224348A CN 110224348 A CN110224348 A CN 110224348A CN 201910522722 A CN201910522722 A CN 201910522722A CN 110224348 A CN110224348 A CN 110224348A
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- CN
- China
- Prior art keywords
- voltage cable
- junction box
- low
- cable junction
- flexible insulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002955 isolation Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000009413 insulation Methods 0.000 claims abstract description 47
- 229910052802 copper Inorganic materials 0.000 claims abstract description 38
- 239000010949 copper Substances 0.000 claims abstract description 38
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 37
- 238000005192 partition Methods 0.000 claims abstract description 34
- 229920001971 elastomer Polymers 0.000 claims abstract description 27
- 239000005060 rubber Substances 0.000 claims abstract description 27
- 229920001342 Bakelite® Polymers 0.000 claims description 8
- 239000004637 bakelite Substances 0.000 claims description 8
- -1 (4) Chemical compound 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- 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
- H02G1/14—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for joining or terminating 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
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/16—Distribution boxes; Connection or junction boxes structurally associated with support for line-connecting terminals within the box
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Insulating Bodies (AREA)
- Cable Accessories (AREA)
Abstract
The present invention relates to electric power dress tables to connect electrical domain.A kind of live line connection method at the interior electrification position of isolation low-voltage cable junction box, it is characterized by comprising following steps: 1) preparing for the flexible insulation partition for charging position, including plate body, magnet, longitudinal insulation sheet rubber, lateral isolation sheet rubber to be isolated in low-voltage cable junction box；2) prepare low-voltage cable junction box；3) when carrying out hot line job in low-voltage cable junction box, the first flexible insulation partition is set on the left of copper bar to be operated, the second flexible insulation partition is set on the right side of copper bar to be operated；The position of magnet on first flexible insulation partition, the second flexible insulation partition is inhaled in the fixed bar in low-voltage cable junction box；First flexible insulation partition is folded to the left, the second flexible insulation partition is folded to the right, carry out connecing power supply line or tears power supply line operation open.This method can be effectively isolated other electrification positions, and live line connection operation can be carried out in the case where not having a power failure.
Description
Technical field
The present invention relates to electric power dress tables to connect electrical domain, and in particular to a kind of that electrification position in low-voltage cable junction box is isolated
Live line connection method.
Background technique
Low-voltage cable junction box is since cabinet space is limited, and safe distance is inadequate between charging copper bar, when working in equipment
Should there are the technical measures for guaranteeing safety enough, i.e. power failure, electrical verification, ground connection, suspension nameplate and installing cover bar (fence), operation
Complexity takes a long time, and whole transformer pause will cause large-area power-cuts, affect greatly to power supply reliability, once
Fault time is too long, will increase the risk of customer complaint.
Summary of the invention
The purpose of the present invention is to provide a kind of live line connection methods that position is charged in isolation low-voltage cable junction box, should
Method can be effectively isolated other electrification positions, and live line connection operation can be carried out in the case where not having a power failure.
To achieve the above object, the technical solution used in the present invention is: electrification in a kind of isolation low-voltage cable junction box
The live line connection method at position, it is characterised in that include the following steps:
1) prepare for be isolated in low-voltage cable junction box charge position flexible insulation partition, including plate body, magnet 12,
Longitudinal insulation sheet rubber 13, lateral isolation sheet rubber 15；The bottom surface of plate body is equipped with multiple magnet 12, and plate body is longitudinally spaced
Equipped with multiple longitudinal insulation sheet rubbers 13, plate body is laterally spaced to be equipped with 1-20 lateral isolation sheet rubber 15, longitudinal rubber of insulating
Plate body is separated into multiple bakelite collets 14 by film 13 and lateral isolation sheet rubber 15；
2) prepare low-voltage cable junction box；
3) when carrying out hot line job in low-voltage cable junction box, it is flexible exhausted that first is set in the left side of copper bar 4 to be operated
Edge partition 10 sets the second flexible insulation partition 11 on the right side of copper bar 4 to be operated；By the first flexible insulation partition 10, second
It inhales in the fixed bar 5 in low-voltage cable junction box at the position of magnet 12 on flexible insulation partition 11；It is flexible exhausted by first
Edge partition 10 folds to the left, and the second flexible insulation partition 11 is folded to the right, and second is carried out on copper bar 4 to be operated and is connected
Connect screw rod 7, gasket is removed or is installed, carry out connecing power supply line or tear open power supply line operation.
The bottom surface of the plate body is equipped with 2-20 magnet.
The plate body is longitudinally spaced to be equipped with 2-20 longitudinal insulation sheet rubber 13.
The bakelite collets 14 of the plate body with a thickness of 1.5-3mm, length 80-100mm.
The low-voltage cable junction box include chamber door 1, the first connecting screw 2, low-voltage cable junction box cabinet 3, copper bar 4,
Fixed bar 5, third connecting screw 9；It is cavity 6 in low-voltage cable junction box cabinet 3, is set on low-voltage cable junction box cabinet 3
There is the string holes passed through for power supply line, left side, the right side of low-voltage cable junction box cabinet 3 have been respectively articulated with chamber door 1, low tension
Multiple fixed bars 5 are transversely arranged side by side in the cavity 6 of cable branch box body 3, fixed bar 5 is by third connecting screw 9
Be fixedly connected with low-voltage cable junction box cabinet 3, in the cavity 6 of low-voltage cable junction box cabinet 3 it is longitudinally spaced be disposed with it is more
A copper bar 4, copper bar 4 are located at the top of fixed bar 5, and copper bar 4 is fixedly connected by the first connecting screw 2 with fixed bar 5；Copper
2 screw holes are equipped on the upper end of item 4, lower end, the second connecting screw 7 screws in the screw hole；Power supply line 8 is by second
Connecting screw 7, gasket are fixed on copper bar 4.
The invention has the following advantages: utilizing flexible insulation partition (longitudinal insulation sheet rubber, lateral isolation rubber
Piece) flexibility, other electrification positions are effectively isolated out by flexible insulation partition, other operations can be carried out, can be not
Live line connection operation is carried out in the case where power failure.Using the above structure, structure is simple, easy to use, practical, Neng Gouyou
Other electrification positions are isolated in effect, are further ensured that security needs.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples:
Fig. 1 is the structural schematic diagram of existing low-voltage cable junction box.
Fig. 2 is flexible insulation of the present invention every for the schematic diagram in low-voltage cable junction box.
Fig. 3 is the structural schematic diagram of flexible insulation partition of the present invention.
In figure: 1- chamber door, the first connecting screw of 2-, 3- low-voltage cable junction box cabinet, 4- copper bar, 5- fixed bar, 6-
Cavity, the second connecting screw of 7-, 8- power supply line, 9- third connecting screw, 10- the first flexible insulation partition, 11- second are flexible
Insulating barrier, 12- magnet, the longitudinal direction 13- insulation sheet rubber, 14- bakelite collets, 15- lateral isolation sheet rubber.
Specific embodiment
As Figure 2-3, the live line connection method at position is charged in a kind of isolation low-voltage cable junction box, including walked as follows
It is rapid:
1) prepare for be isolated in low-voltage cable junction box charge position flexible insulation partition, including plate body, magnet 12,
Longitudinal insulation sheet rubber 13, lateral isolation sheet rubber 15；The bottom surface of plate body is equipped with multiple (such as 2-20 magnet, the present embodiment
Using 8) magnet 12, plate body is longitudinally spaced to be equipped with that multiple (such as 2-20 longitudinal insulation sheet rubber 13, the present embodiment is using 7
It is a) longitudinal direction insulation sheet rubber 13, plate body is laterally spaced to be equipped with 1-20 (the present embodiment uses 1) lateral isolation sheet rubbers
15, longitudinal insulation sheet rubber 13 and lateral isolation sheet rubber 15 by plate body be separated into it is multiple (such as 4-32 bakelite collets 14,
The present embodiment uses 16) bakelite collets 14 (i.e. flexible insulation partition is foldable)；
2) prepare low-voltage cable junction box: low-voltage cable junction box includes chamber door 1, the first connecting screw 2, low-voltage cable point
Branch box body 3, copper bar 4, fixed bar 5, third connecting screw 9；It is cavity 6, low tension in low-voltage cable junction box cabinet 3
Cable branch box body 3 is equipped with the string holes (string holes is communicated with cavity 6) passed through for power supply line, low-voltage cable junction box cabinet 3
Left side, right side be respectively articulated with chamber door 1 (one of chamber door 1 be equipped with lock), the cavity 6 of low-voltage cable junction box cabinet 3
Inside transversely it is arranged side by side with that multiple (such as 2-6, the present embodiment use 2 fixed bars 5；Left and right directions is lateral in Fig. 2,
Up and down direction is longitudinal) fixed bar 5, fixed bar 5 is by third connecting screw (or bolt) 9 and low-voltage cable junction box case
Body 3 is fixedly connected, longitudinally spaced in the cavity 6 of low-voltage cable junction box cabinet 3 to be disposed with multiple (such as 2-10, this implementation
Example uses 4, constitutes copper bar) copper bar 4, copper bar 4 is located at the top of fixed bar 5, and copper bar 4 is by the first connecting screw (or spiral shell
Bolt) it 2 is fixedly connected with fixed bar 5；2 screw holes, the rotation of the second connecting screw 7 are equipped on the upper end of copper bar 4, lower end
Enter in the screw hole；Power supply line 8 is fixed on copper bar 4 { power supply line (i.e. power supply output line) 8 by the second connecting screw 7, gasket
It is pressed on copper bar 4 by covering the gasket on the second connecting screw 7；Copper bar 4 is connected by external power input line with power supply；Electricity
Source line 8 is connected with ammeter (gauge table) }；
3) in low-voltage cable junction box carry out hot line job when (as more renew ammeter when), wait operate (such as: connecing power supply
Line tears power supply line open) the left side of copper bar 4 set the first flexible insulation partition 10, wait operate (such as: connecing power supply line, tear power supply line open)
The right side of copper bar 4 set the second flexible insulation partition 11；It will be on the first flexible insulation partition 10, the second flexible insulation partition 11
The position of magnet 12 inhale in fixed bar 5 in low-voltage cable junction box and (guarantee that magnet position firmly installs)；By first
Flexible insulation partition 10 folds { covering left side (such as covering left side copper bar 4) } to the left, to the right by the second flexible insulation partition 11
Side folds { covering right side (such as covering right side copper bar 4)；Right side, the insulated left side space of copper bar 4 i.e. to be operated become larger, convenient
Operation }, wait operate carry out the second connecting screw 7 on copper bar 4 (such as: connecing power supply line, tear power supply line open), gasket is removed or is installed
On, it carries out connecing power supply line or tears power supply line operation open.
The thickness of the bakelite collets 14 of plate body is about 1.5-3mm, and length is about 80-100mm.Magnet is square magnet.
Main purpose be during the hot line job of cable low voltage cable branch box, solve copper bar between safe distance not
This enough security risk, safety specification needed for meeting hot line job further increase working efficiency.Pass through invention one
Kind flexible insulation partition guarantees that the safe distance of electro-mechanical part interdigit, flexible operating in the state of not having a power failure meet low tension
The safety condition of gas live line work, to improve working efficiency.
Claims (5)
1. a kind of live line connection method at electrification position in isolation low-voltage cable junction box, it is characterised in that include the following steps:
1) prepare for being isolated in low-voltage cable junction box the flexible insulation partition for charging position, including plate body, magnet (12), vertical
To insulation sheet rubber (13), lateral isolation sheet rubber (15)；The bottom surface of plate body is equipped with multiple magnet (12), plate body along longitudinal direction between
Every being equipped with multiple longitudinal insulation sheet rubbers (13), plate body is laterally spaced to be equipped with 1-20 lateral isolation sheet rubber (15), longitudinal direction
Plate body is separated into multiple bakelite collets (14) by insulation sheet rubber (13) and lateral isolation sheet rubber (15)；
2) prepare low-voltage cable junction box；
3) when carrying out hot line job in low-voltage cable junction box, the first flexible insulation is set on the left of copper bar (4) to be operated
Partition (10) sets the second flexible insulation partition (11) on the right side of copper bar (4) to be operated；By the first flexible insulation partition
(10), the fixed bar (5) in low-voltage cable junction box is inhaled at the position of the magnet (12) on the second flexible insulation partition (11)
On；First flexible insulation partition (10) is folded to the left, the second flexible insulation partition (11) is folded to the right, it is to be operated
The second connecting screw (7) is carried out on copper bar (4), gasket is removed or is installed, carry out connecing power supply line or tear open power supply line operation.
2. the live line connection method at electrification position, special in a kind of isolation low-voltage cable junction box according to claim 1
Sign is: the bottom surface of the plate body is equipped with 2-20 magnet.
3. the live line connection method at electrification position, special in a kind of isolation low-voltage cable junction box according to claim 1
Sign is: the plate body is longitudinally spaced to be equipped with 2-20 longitudinal insulation sheet rubber (13).
4. the live line connection method at electrification position, special in a kind of isolation low-voltage cable junction box according to claim 1
Sign is: the bakelite collets (14) of the plate body with a thickness of 1.5-3mm, length 80-100mm.
5. the live line connection method at electrification position, special in a kind of isolation low-voltage cable junction box according to claim 1
Sign is: the low-voltage cable junction box includes chamber door (1), the first connecting screw (2), low-voltage cable junction box cabinet (3), copper
Item (4), fixed bar (5), third connecting screw (9)；It is cavity (6) low-voltage cable point in low-voltage cable junction box cabinet (3)
Branch box body (3) is equipped with the string holes passed through for power supply line, and left side, the right side of low-voltage cable junction box cabinet (3) are cut with scissors respectively
It is connected to chamber door (1), is transversely arranged side by side with multiple fixed bars (5) in the cavity (6) of low-voltage cable junction box cabinet (3),
Fixed bar (5) is fixedly connected by third connecting screw (9) with low-voltage cable junction box cabinet (3), low-voltage cable junction box case
Longitudinally spaced in the cavity (6) of body (3) to be disposed with multiple copper bars (4), copper bar (4) is located at the top of fixed bar (5), copper bar
(4) it is fixedly connected by the first connecting screw (2) with fixed bar (5)；2 spiral shells are equipped on the upper end of copper bar (4), lower end
Hole, the second connecting screw (7) screw in the screw hole；Power supply line (8) is fixed on copper bar (4) by the second connecting screw (7), gasket
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910522722.6A CN110224348B (en) | 2019-06-17 | 2019-06-17 | Live-line wiring method for isolating live-line part in low-voltage cable branch box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910522722.6A CN110224348B (en) | 2019-06-17 | 2019-06-17 | Live-line wiring method for isolating live-line part in low-voltage cable branch box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110224348A true CN110224348A (en) | 2019-09-10 |
| CN110224348B CN110224348B (en) | 2020-09-18 |
Family
ID=67817479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910522722.6A Expired - Fee Related CN110224348B (en) | 2019-06-17 | 2019-06-17 | Live-line wiring method for isolating live-line part in low-voltage cable branch box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110224348B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114156736A (en) * | 2021-12-03 | 2022-03-08 | 国网湖北省电力有限公司宜昌供电公司 | Intelligent branch box |
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| CN203085971U (en) * | 2013-01-31 | 2013-07-24 | 中国农业银行股份有限公司 | Wiring terminal separating device |
| CN203645157U (en) * | 2013-11-26 | 2014-06-11 | 国家电网公司 | Terminal box anti-electric-shock separator plate |
| CN203850806U (en) * | 2014-04-24 | 2014-09-24 | 国家电网公司 | Wall-mounted low-voltage cable branch box |
| CN205141617U (en) * | 2015-11-05 | 2016-04-06 | 国网湖南省电力公司带电作业中心 | Cable branch case insulating boot |
| CN106340811A (en) * | 2016-06-08 | 2017-01-18 | 国网襄阳供电公司客户服务中心襄城分中心卧龙供电所 | Low-voltage insulated protective cover |
| CN108110701A (en) * | 2018-01-09 | 2018-06-01 | 国网山东省电力公司滨州供电公司 | It is a kind of can the charged pinch of low-voltage cable junction box started to exchange fire |
| CN109301739A (en) * | 2018-11-14 | 2019-02-01 | 国网浙江新昌县供电有限公司 | Charged for replacement low-voltage cable junction box inner breaker insulated isolated device |
-
2019
- 2019-06-17 CN CN201910522722.6A patent/CN110224348B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203085971U (en) * | 2013-01-31 | 2013-07-24 | 中国农业银行股份有限公司 | Wiring terminal separating device |
| CN203645157U (en) * | 2013-11-26 | 2014-06-11 | 国家电网公司 | Terminal box anti-electric-shock separator plate |
| CN203850806U (en) * | 2014-04-24 | 2014-09-24 | 国家电网公司 | Wall-mounted low-voltage cable branch box |
| CN205141617U (en) * | 2015-11-05 | 2016-04-06 | 国网湖南省电力公司带电作业中心 | Cable branch case insulating boot |
| CN106340811A (en) * | 2016-06-08 | 2017-01-18 | 国网襄阳供电公司客户服务中心襄城分中心卧龙供电所 | Low-voltage insulated protective cover |
| CN108110701A (en) * | 2018-01-09 | 2018-06-01 | 国网山东省电力公司滨州供电公司 | It is a kind of can the charged pinch of low-voltage cable junction box started to exchange fire |
| CN109301739A (en) * | 2018-11-14 | 2019-02-01 | 国网浙江新昌县供电有限公司 | Charged for replacement low-voltage cable junction box inner breaker insulated isolated device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114156736A (en) * | 2021-12-03 | 2022-03-08 | 国网湖北省电力有限公司宜昌供电公司 | Intelligent branch box |
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| Publication number | Publication date |
|---|---|
| CN110224348B (en) | 2020-09-18 |
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Granted publication date: 20200918 |