CN110137867B - Method for live wiring in low-voltage cable branch box - Google Patents
Method for live wiring in low-voltage cable branch box Download PDFInfo
- Publication number
- CN110137867B CN110137867B CN201910521941.2A CN201910521941A CN110137867B CN 110137867 B CN110137867 B CN 110137867B CN 201910521941 A CN201910521941 A CN 201910521941A CN 110137867 B CN110137867 B CN 110137867B
- Authority
- CN
- China
- Prior art keywords
- low
- voltage cable
- cable branch
- branch box
- fastening screw
- 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.)
- Active
Links
Images
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)
- Cable Accessories (AREA)
Abstract
The invention relates to the technical field of electric meter installation and power connection. A method for live wiring in a low-voltage cable branch box is characterized by comprising the following steps: 1) the device for preparing the live wiring in the low-voltage cable branch box comprises a first fastening screw, a device body, a second fastening screw and a third fastening screw; the lower part of the second fastening screw is screwed into the second threaded hole, and the lower part of the third fastening screw is screwed into the third threaded hole; 2) preparing a low-voltage cable branch box; 3) installing a device for live wiring in the low-voltage cable branch box on a copper bar of the low-voltage cable branch box; 4) when a new power line is to be accessed, under the condition of electrification, the light end heads of the power line are respectively inserted into the first power line insertion hole and the second power line insertion hole, then the first fastening screw and the second fastening screw are respectively screwed by an insulated screwdriver, and the new power line to be accessed is fixed on the device body. The method can carry out live-wire connection operation under the condition of no power failure.
Description
Technical Field
The invention relates to the technical field of power meter installation and power connection, in particular to a method for live wiring in a low-voltage cable branch box.
Background
The structure of the low-voltage cable branch box is shown in fig. 1, and the low-voltage cable branch box comprises a box door, a first connecting screw rod, a low-voltage cable branch box body, a copper bar, a fixing cross bar and a third connecting screw rod; the low-voltage cable branch box is characterized in that a cavity is formed in the low-voltage cable branch box body, the left side and the right side of the low-voltage cable branch box body are respectively hinged with a box door, a plurality of fixing cross bars are transversely arranged in the cavity of the low-voltage cable branch box body and fixedly connected with the low-voltage cable branch box body through third connecting screws (or bolts), a plurality of copper bars are longitudinally arranged in the cavity of the low-voltage cable branch box body at intervals, and the copper bars are fixedly connected with the fixing cross bars through first connecting screws (or bolts); the upper end of copper bar is equipped with two screws, adopts second connecting screw, gasket to connect the power cord, and 2 power cords transverse arrangement. When a new user ammeter (a three-phase low-voltage metering device) needs to be replaced and added, the power outlet of the existing low-voltage cable branch box is connected with a copper bar in an extruding mode by screwing down screws on the copper bar (busbar), and the whole branch circuit needs to be powered off or even shut down the whole transformer during operation because no power supply disconnection point exists. The method can affect the normal electricity consumption of tens of households in a few cases and residents in hundreds of households in a more case.
The following disadvantages exist: 1. after the low voltage cable feeder pillar power transmission drops into the operation, it is narrow and small to receive electrified low voltage cable molecule case box when installing metering device again, and the limited restriction of safe distance between electrified copper bar must be through the mode that stops whole transformer or whole low pressure branch line entirely, just can insert new user's ammeter safely, and the stopping operation of transformer can cause the large tracts of land to have a power failure, seriously influences power supply. 2. The wiring in the daily low-voltage cable branch box is transversely arranged and influenced by space, the safety distance between phase sequences cannot be guaranteed, great potential safety hazards exist, and the process of the circuit does not meet the requirements of flatness, verticality, clear hierarchy, tidiness and attractiveness in the regulations.
Disclosure of Invention
The invention aims to provide a live-wire connection method in a low-voltage cable branch box, which can carry out live-wire connection operation under the condition of no power failure.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a method for live wiring in a low-voltage cable branch box is characterized by comprising the following steps:
1) preparing a device 9 for live wiring in a low-voltage cable branch box, wherein the device for live wiring in the low-voltage cable branch box comprises a first fastening screw 10, a device body 15, a second fastening screw 16 and a third fastening screw 22; a first power cord insertion hole 11 is formed in the left portion of the device body 15, a first threaded hole 12 is formed in the left portion of the device body 15, and the first threaded hole 12 is communicated with the first power cord insertion hole 11; a second power cord insertion hole 18 is formed in the right portion of the device body 15, a second threaded hole 17 is formed in the right portion of the device body 15, and the second threaded hole 17 is communicated with the second power cord insertion hole 18; the left end and the right end of the lower part of the device body 15 are both provided with clamping hooks 19, a bayonet 20 is formed between the two clamping hooks 19, 2 third threaded holes 21 are arranged on the middle part of the device body 15, and the third threaded holes 21 are communicated with the bayonet 20; the lower part of the first fastening screw 10 is screwed into the first threaded hole 12, the lower part of the second fastening screw 16 is screwed into the second threaded hole 17, and the lower part of the third fastening screw 22 is screwed into the third threaded hole 21;
2) in an uncharged state, preparing a low-voltage cable branch box: the low-voltage cable branch box comprises a box door 1, a first connecting screw 2, a low-voltage cable branch box body 3, a copper bar 4, a fixed transverse bar 5 and a third connecting screw 14; the low-voltage cable branch box body 3 is internally provided with a cavity 6, the low-voltage cable branch box body 3 is provided with a wire hole for a power wire to pass through, the left side and the right side of the low-voltage cable branch box body 3 are respectively hinged with a box door 1, a plurality of fixing cross bars 5 are arranged in the cavity 6 of the low-voltage cable branch box body 3 side by side along the transverse direction, the fixing cross bars 5 are fixedly connected with the low-voltage cable branch box body 3 through third connecting screw rods, a plurality of copper bars 4 are arranged in the cavity 6 of the low-voltage cable branch box body 3 along the longitudinal direction at intervals, the copper bars 4 are positioned above the fixing cross bars 5, and the copper bars 4 are fixedly connected with the fixing cross bars 5 through first; 2 screw holes 23 are formed in the upper end part and the lower end part of the copper bar 4;
3) in the uncharged state, the device 9 for live wiring in the low-voltage cable branch box is mounted on the copper bar 4 of the low-voltage cable branch box: the device 9 for live wiring in the low-voltage cable branch box is clamped on the end part of the copper bar 4 through a bayonet 20, then a third fastening screw 22 is screwed, and the third fastening screw 22 is in contact with the copper bar 4; the first power line insertion hole 11 and the second power line insertion hole 18 of the device for live wiring 9 in the low-voltage cable branch box are arranged in the longitudinal direction;
4) when a new power line is to be accessed, under the condition of electrification, the first fastening screw 10 and the second fastening screw 16 are unscrewed by using an insulated screwdriver; the light ends of the power cord 8 are inserted into the first power cord insertion hole 11 and the second power cord insertion hole 18, respectively, and then the first fastening screw 10 and the second fastening screw 16 are tightened by an insulated screwdriver, respectively, to fix the new power cord 8 to be connected to the device body 15.
5) When a new user ammeter needs to be replaced, under the condition of electrification (under the protection measures, namely an insulated screwdriver and an insulated pliers), the first fastening screw 10 and the second fastening screw 16 are loosened; the light ends of 2 power lines 8 are respectively drawn out from the first power line insertion hole 11 and the second power line insertion hole 18; after the replacement of the new user electric meter is completed, the light ends of the power cord 8 are inserted into the first power cord insertion hole 11 and the second power cord insertion hole 18, respectively, and then the first fastening screw 10 and the second fastening screw 16 are tightened by using an insulated screwdriver, respectively, so that the power cord 8 to be connected is fixed on the device body 15 again.
The lower end of the third fastening screw 22 is screwed into the screw hole at the upper end of the copper bar 4.
The device body 15 is provided with a groove 13, and a third threaded hole 21 is positioned in the groove 13.
The device for live wiring in the low-voltage cable branch box is mainly designed for solving the problems that 1, after the low-voltage cable branch box is powered on and operated, a metering device is installed again without power failure, the design can safely and conveniently obtain a power supply, a main transformer does not need to be turned off, and the conditions of large power failure range and more power failure users are avoided; 2. the trend mode of wiring in daily low tension cable feeder pillar is horizontal emission, receives the influence in space, can't guarantee the safe distance between the phase sequence, has very big potential safety hazard, and the design of novel device is designed the trend mode of circuit for vertically arranging, has solved the problem of circuit interval in the feeder pillar, guarantees the power consumption safety, satisfies circuit installation technological requirement.
The invention has the following beneficial effects:
1) the live-line wiring operation can be carried out under the condition of no power failure, large-area power failure is avoided, and the power supply requirement is guaranteed.
2) The device for live wiring in the low-voltage cable branch box is characterized in that the running direction of a circuit is designed to be vertically arranged longitudinally, and the wiring operation is performed for a plurality of times from top to bottom in sequence, so that the problem of the distance between the circuits in the branch box is solved, the power utilization safety is ensured, and the requirements of a circuit installation process are met.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 is a schematic structural diagram of a conventional low-voltage cable branch box.
Fig. 2 is a schematic structural diagram of a low-voltage cable branch box of the invention.
Fig. 3 is a schematic structural diagram of the device for live wiring in the low-voltage cable branch box.
Fig. 4 is a top view of fig. 3.
In the figure: 1-box door, 2-first connecting screw rod, 3-low-voltage cable branch box body, 4-copper bar, 5-fixed cross bar, 6-cavity, 7-second connecting screw rod, 8-power line, 9-device for live wiring in the low-voltage cable branch box, 10-first fastening screw, 11-first power line insertion hole, 12-first threaded hole, 13-groove, 14-third connecting screw rod, 15-device body, 16-second fastening screw, 17-second threaded hole, 18-second power line insertion hole, 19-clamping hook, 20-clamping opening, 21-third threaded hole, 22-third fastening screw rod and 23-threaded hole.
Detailed Description
As shown in fig. 2-4, a method for live wiring in a low-voltage cable branch box comprises the following steps:
1) preparing a device 9 for live wiring in a low-voltage cable branch box, wherein the device for live wiring in the low-voltage cable branch box comprises a first fastening screw 10, a device body 15, a second fastening screw 16 and a third fastening screw 22; a first power line insertion hole 11 is formed in the left portion of the device body 15 (the left side in fig. 3 is left, and the right side is right), a first threaded hole 12 is formed in the left portion of the device body 15 (the first threaded hole 12 is matched with the first fastening screw 10, in this embodiment, 2 first threaded holes 12 are adopted, corresponding to 2 first fastening screws 10), and the first threaded hole 12 is communicated with the first power line insertion hole 11; the right part of the device body 15 is provided with a second power cord insertion hole 18, a second threaded hole 17 (2 second threaded holes 17 are adopted in the embodiment, and 2 second fastening screws 16 are correspondingly adopted) is arranged on the right part of the device body 15, and the second threaded hole 17 is communicated with the second power cord insertion hole 18; hooks 19 are respectively arranged at the left end and the right end of the lower part of the device body 15, a bayonet 20 is formed between the two hooks 19, 2 third threaded holes 21 (2 third threaded holes 21 are adopted in the embodiment, and 2 third fastening screws 22 are correspondingly adopted; or a plurality of third threaded holes 21 are adopted) are arranged on the middle part of the device body 15, and the third threaded holes 21 are communicated with the bayonet (rectangular clamping groove) 20; the lower part of the first fastening screw 10 is screwed into the first threaded hole 12, the lower part of the second fastening screw 16 is screwed into the second threaded hole 17, and the lower part of the third fastening screw 22 is screwed into the third threaded hole 21;
2) in an uncharged state, preparing a low-voltage cable branch box: the low-voltage cable branch box comprises a box door 1, a first connecting screw 2, a low-voltage cable branch box body 3, a copper bar 4, a fixed transverse bar 5 and a third connecting screw 14; the low-voltage cable branch box body 3 is internally provided with a cavity 6, the low-voltage cable branch box body 3 is provided with a wire hole (the wire hole is communicated with the cavity 6) for a power wire to pass through, the left side and the right side of the low-voltage cable branch box body 3 are respectively hinged with a box door 1 (one box door 1 is provided with a lock), a plurality of (such as 2-6) fixing cross bars 5 are arranged in the cavity 6 of the low-voltage cable branch box body 3 side by side along the transverse direction, in the embodiment, 2 fixing cross bars 5 are adopted, in the figure 2, the left and right directions are transverse directions, and the up and down directions are longitudinal directions, the fixing cross bars 5 are fixedly connected with the low-voltage cable branch box body 3 through third connecting screws (or bolts), a plurality of (such as 2-10 in the embodiment, 4 copper bars are adopted to form copper bars) 4 in the cavity 6 of the low-voltage cable branch box, the copper bar 4 is fixedly connected with the fixed cross bar 5 by a first connecting screw rod (or bolt) 2; the upper end part and the lower end part of the copper bar 4 are both provided with 2 screw holes 23 (two screw holes 23 are adopted in the embodiment, a second connecting screw rod 7 and a gasket are adopted to connect power lines 8 in the prior art, 2 power lines 8 can only be transversely arranged and cannot ensure the safety distance between phase sequences under the influence of space, and great potential safety hazards exist;
3) in the uncharged state, the device 9 for live wiring in the low-voltage cable branch box is mounted on the copper bar 4 of the low-voltage cable branch box (after the low-voltage cable branch box is mounted, before the live wiring is carried out): the device 9 for the live wiring in the low-voltage cable branch box is clamped on the end part of the copper bar 4 by the bayonet 20, then the third fastening screw 22 is screwed by the insulating screwdriver, the insulating screwdriver is used for screwing, the third fastening screw 22 is contacted with the copper bar 4 (namely, the device 9 for the live wiring in the low-voltage cable branch box can be fixed, further, the lower end of the third fastening screw 22 is screwed into the screw hole at the upper end part of the copper bar 4 and is fixed, a plurality of new user electric meters need to be connected, and a plurality of devices 9 for the live wiring in the low-voltage cable branch box are also installed; the first power line insertion hole 11 and the second power line insertion hole 18 of the device for live wiring 9 in the low-voltage cable branch box are arranged in the longitudinal direction;
4) when a new power line is to be connected (a new user electric meter), under the condition of electrification (under the protection measures, namely an insulated screwdriver and an insulated pliers), loosening the first fastening screw 10 and the second fastening screw 16; the light ends of the power cord 8 are inserted into the first power cord insertion hole 11 and the second power cord insertion hole 18, respectively, and then the first fastening screw 10 and the second fastening screw 16 are tightened by an insulated screwdriver, respectively, to fix the new power cord 8 to be connected to the device body 15.
5) When a new user ammeter needs to be replaced, under the condition of electrification (under the protection measures, namely an insulated screwdriver and an insulated pliers), the first fastening screw 10 and the second fastening screw 16 are loosened; the light ends of 2 power lines 8 are respectively drawn out from the first power line insertion hole 11 and the second power line insertion hole 18; after the replacement of the new user electric meter is completed, the light ends of the power cord 8 are inserted into the first power cord insertion hole 11 and the second power cord insertion hole 18, respectively, and then the first fastening screw 10 and the second fastening screw 16 are tightened by using an insulated screwdriver, respectively, so that the power cord 8 to be connected is fixed on the device body 15 again.
The device body 15 is provided with a groove 13, and the third threaded hole 21 is positioned in the groove (rectangular groove) 13. The first fastening screw 10, the device body (rectangular parallelepiped) 15, the second fastening screw 16, and the third fastening screw 22 are all made of conductive materials (made of conductive copper materials).
When the low-voltage cable branch box needs to perform wiring operation under the electrified condition, the running transformer does not need to be stopped, and the first fastening screw 10 and the second fastening screw 16 are unscrewed under the protection measure; the light ends of the power cord 8 are respectively inserted into the first power cord insertion hole 11 and the second power cord insertion hole 18, then the first fastening screw 10 and the second fastening screw 16 are respectively screwed, a new power cord 8 to be connected is fixed on the device body 15, and the wiring equipment can be electrified. When the metering device is additionally arranged, a convenient power supply point can be provided, the total transformer does not need to be shut down when the metering device is overlapped with a fire for power connection, the condition that the power failure range is large and the number of power failure users is large is avoided, and the operation efficiency is improved. The running mode of the lines is designed to be vertically arranged in the longitudinal direction, and the connection operation is carried out for a plurality of times from top to bottom, so that the problem of line spacing in the branch box is solved, the power utilization safety is ensured, and the requirements of a line installation process are met.
Claims (3)
1. A method for live wiring in a low-voltage cable branch box is characterized by comprising the following steps:
1) preparing a device (9) for live wiring in a low-voltage cable branch box, wherein the device for live wiring in the low-voltage cable branch box comprises a first fastening screw (10), a device body (15), a second fastening screw (16) and a third fastening screw (22); a first power line insertion hole (11) is formed in the left portion of the device body (15), a first threaded hole (12) is formed in the left portion of the device body (15), and the first threaded hole (12) is communicated with the first power line insertion hole (11); a second power line insertion hole (18) is formed in the right part of the device body (15), a second threaded hole (17) is formed in the right part of the device body (15), and the second threaded hole (17) is communicated with the second power line insertion hole (18); the left end and the right end of the lower part of the device body (15) are both provided with clamping hooks (19), a bayonet (20) is formed between the two clamping hooks (19), 2 third threaded holes (21) are arranged on the middle part of the device body (15), and the third threaded holes (21) are communicated with the bayonet (20); the lower part of the first fastening screw (10) is screwed into the first threaded hole (12), the lower part of the second fastening screw (16) is screwed into the second threaded hole (17), and the lower part of the third fastening screw (22) is screwed into the third threaded hole (21);
2) in an uncharged state, preparing a low-voltage cable branch box: the low-voltage cable branch box comprises a box door (1), a first connecting screw rod (2), a low-voltage cable branch box body (3), a copper bar (4), a fixed transverse bar (5) and a third connecting screw rod (14); the novel low-voltage cable branch box is characterized in that a cavity (6) is formed in the low-voltage cable branch box body (3), wire holes for power wires to pass through are formed in the low-voltage cable branch box body (3), the left side and the right side of the low-voltage cable branch box body (3) are respectively hinged with a box door (1), a plurality of fixing cross bars (5) are transversely arranged in the cavity (6) of the low-voltage cable branch box body (3) side by side, the fixing cross bars (5) are fixedly connected with the low-voltage cable branch box body (3) through third connecting screw rods, a plurality of copper bars (4) are longitudinally arranged in the cavity (6) of the low-voltage cable branch box body (3) at intervals, and the copper bars (4) are fixedly connected with the fixing cross bars (5) through first; 2 screw holes (23) are formed in the upper end part and the lower end part of the copper bar (4);
3) in the uncharged state, a device (9) for live wiring in the low-voltage cable branch box is mounted on a copper bar (4) of the low-voltage cable branch box: the device (9) for live wiring in the low-voltage cable branch box is clamped on the end part of the copper bar (4) through a bayonet (20), then a third fastening screw (22) is screwed, and the third fastening screw (22) is contacted with the copper bar (4); the first power line insertion hole (11) and the second power line insertion hole (18) of the device (9) for live wiring in the low-voltage cable branch box are arranged along the longitudinal direction;
4) when a new power line is to be accessed, under the condition of electrification, the first fastening screw (10) and the second fastening screw (16) are unscrewed by using an insulated screwdriver; the light ends of the power line (8) are respectively inserted into the first power line insertion hole (11) and the second power line insertion hole (18), then the first fastening screw (10) and the second fastening screw (16) are respectively screwed by an insulated screwdriver, and the new power line (8) to be accessed is fixed on the device body (15);
5) when a new user electric meter needs to be replaced, under the condition of electrification, the first fastening screw (10) and the second fastening screw (16) are unscrewed; the light ends of 2 power lines (8) are respectively extracted from the first power line insertion hole (11) and the second power line insertion hole (18); after the replacement of a new user electric meter is finished, the light ends of the power line (8) are respectively inserted into the first power line insertion hole (11) and the second power line insertion hole (18), then the first fastening screw (10) and the second fastening screw (16) are respectively screwed by using insulated screwdrivers, and the power line (8) to be connected is fixed on the device body (15) again.
2. The method for live wiring in a low-voltage cable branch box according to claim 1, wherein: the lower end of the third fastening screw (22) is screwed into the screw hole at the upper end of the copper bar (4).
3. The method for live wiring in a low-voltage cable branch box according to claim 1, wherein: a groove (13) is formed in the device body (15), and the third threaded hole (21) is located in the groove (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910521941.2A CN110137867B (en) | 2019-06-17 | 2019-06-17 | Method for live wiring in low-voltage cable branch box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910521941.2A CN110137867B (en) | 2019-06-17 | 2019-06-17 | Method for live wiring in low-voltage cable branch box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110137867A CN110137867A (en) | 2019-08-16 |
| CN110137867B true CN110137867B (en) | 2020-09-18 |
Family
ID=67577437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910521941.2A Active CN110137867B (en) | 2019-06-17 | 2019-06-17 | Method for live wiring in low-voltage cable branch box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110137867B (en) |
Families Citing this family (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 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2605686Y (en) * | 2003-01-23 | 2004-03-03 | 连凌峰 | Low-voltage cable distribution box |
| CN2606481Y (en) * | 2003-01-23 | 2004-03-10 | 李瑞平 | Low-voltage cable distributing boxes |
| CN2891423Y (en) * | 2005-12-28 | 2007-04-18 | 杨毓川 | Multi-way branch connection box for power line |
| CN103078190B (en) * | 2013-01-21 | 2015-04-08 | 上海市电力公司 | Puller type quick connector for emergency power van |
| CN203850806U (en) * | 2014-04-24 | 2014-09-24 | 国家电网公司 | Wall-mounted low-voltage cable branch box |
| CN105098621A (en) * | 2015-09-16 | 2015-11-25 | 江苏亨通光网科技有限公司 | Technique for online maintenance of power distribution module in communication cabinet |
-
2019
- 2019-06-17 CN CN201910521941.2A patent/CN110137867B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110137867A (en) | 2019-08-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110137867B (en) | Method for live wiring in low-voltage cable branch box | |
| CN109616989B (en) | Branch box on post | |
| CN205829092U (en) | Ladder busbar formula joint-box | |
| CN211266264U (en) | Electric wire wiring frame | |
| CN203895633U (en) | Short circuit grounding wire suitable for box transformer substation and electricity distribution room | |
| CN205680797U (en) | A kind of screen pushes up little bus bar bridging instrument | |
| CN110224348B (en) | Live-line wiring method for isolating live-line part in low-voltage cable branch box | |
| CN109524809A (en) | The fast wiring clip and insulation gripper clamp and operating method of low-voltage live line work | |
| CN209150496U (en) | A kind of busbar rapid insertion device | |
| CN208736913U (en) | A kind of three-phase kilowatt-hour meter mounting bedplate | |
| CN210956474U (en) | Power taking device with double power switch power supplies | |
| CN208889869U (en) | A kind of New Low Voltage cable plant distribution plate | |
| CN209150986U (en) | A kind of frequency converter cabinet body component | |
| CN109004602B (en) | Bus duct convenient to it is fixed | |
| CN208001078U (en) | The easy repairing type high voltage distribution box of fuse | |
| CN207559531U (en) | A kind of novel cable transfer box | |
| CN207165965U (en) | A kind of gas tank apparatus structure of the recessed bag of band | |
| CN110311244B (en) | Safe and guaranteed measuring meter wiring quick-change method and measuring meter wiring quick-change device | |
| CN218385995U (en) | Branch box busbar splicing device | |
| CN218732428U (en) | Switch cabinet group | |
| CN219833052U (en) | High-voltage box for power battery pack | |
| CN220231849U (en) | Multiuser electric energy meter | |
| CN203895624U (en) | Fixed connector for high-voltage wire living working | |
| CN220830280U (en) | Cable distribution box | |
| CN215768720U (en) | Standardized design multi-meter-position module type electric energy metering box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |