CN108336734A - A kind of laying of distribution low-voltage circuit and load access device and its cut-in method - Google Patents
A kind of laying of distribution low-voltage circuit and load access device and its cut-in method Download PDFInfo
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- CN108336734A CN108336734A CN201810426146.0A CN201810426146A CN108336734A CN 108336734 A CN108336734 A CN 108336734A CN 201810426146 A CN201810426146 A CN 201810426146A CN 108336734 A CN108336734 A CN 108336734A
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- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 7
- 230000005619 thermoelectricity Effects 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 9
- 238000010276 construction Methods 0.000 abstract description 5
- 230000006978 adaptation Effects 0.000 abstract description 2
- 230000009194 climbing Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 16
- 238000009434 installation Methods 0.000 description 10
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- 230000000694 effects Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
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- 229920003023 plastic Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
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- 240000006995 Abutilon theophrasti Species 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
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Abstract
The invention discloses a kind of laying of distribution low-voltage circuit and load access devices and its cut-in method, including wiring babinet, wiring babinet is fixedly connected on wall and above advertisement door head, end of incoming cables passes through on distribution line in four cable connections to nearest electric pole, outlet end is connected with multiple user's single-phase electric meters and user's power ammeter by service cable, and service cable is laid in outside advertisement door head.The present invention is easy to implement adaptation to local conditions, construction coordination difficulty is small, resistance work risk is low, cost-effective, economically feasible, greatly reduce the probability that fire hazard occurs, power supply distance is short, quality of voltage is good, line loss is low, it improves and safeguards, maintenance, expands dress table efficiency, while reducing the offline quantity of electric pole, reduce power lug, reduce personnel's machine for man climbing up electric wire pole rate, reduce job safety risk.
Description
Technical field
The invention belongs to distribution line equipment technical fields, and in particular to a kind of laying of distribution low-voltage circuit and load access
Device and its cut-in method.
Background technology
The reason of because of physical construction planning, builds in a large amount of individuals in the shopping streets both sides such as part urban district, County finance, small towns
It builds and is not reserved with electric power facility channel.The electric power facilities such as power transformer, electric pole, aerial condutor are installed in the both sides of road,
By business development for many years, all trades and professions, panoramic advertisement door head will be set along electric power such as wall electric power low-pressure circuit, electric energy meters
Apply tight package, encapsulation.Therefore major safety risks and problem are caused：
1）Fire hazard：Advertisement door head mainly uses the inflammable articles such as timber, plastics to be packaged, strict package conducting wire, table
Meter is easily because many reasons cause fire incident；
2）Personal electric shock hidden danger：Advertisement door head is metal frame, is squeezed, package power circuit easily causes wire insulation breakage and causes
The failure problems such as short circuit, electric leakage, electric wire broken string, zero curve electrification are caused directly or indirectly accident of human electric shock；
3）Electrical equipment damages hidden danger：Wrapped power circuit easily cause short circuit, broken string, poor contact, firewire enter etc.
Defect causes power department, user's electrical equipment overvoltage, overcurrent damage accident；
4）Low-voltage supply line is built difficult：" lifeline " that power circuit is produced as today's society, lived, it is safe and reliable to power
It has a great responsibility, the low-voltage circuit in door head is long neglected and in disrepair, and failure frequency stops, overloads fever, low-voltage, applies to install the problems such as limited more
It highlights, the reconstruction of circuit has been very urgent.But since urban architecture planning and advertisement door head seriously wrap up, individual user is private
Profit resistance work the problems such as there are the serious construction and development for constraining circuit；
5）Patrol dimension, maintenance, industry expansion dress table hardly possible：a）Daily tour, maintenance work can not be carried out, b）Breakdown repair telegram in reply is difficult,
Situation becomes complex, and the electric shock, burn, high pendant operating risk in production work are high, seriously threaten work about electric power people
The job safety of member, c）Have a power failure frequently, the problems such as telegram in reply is slow, voltage is low frequently cause power consumer cannot safely, feel at ease
Electricity consumption, correlation are complained more；
6）Line loss is high, and management and control is difficult：The low-voltage circuit section some tightly wrapped up even encapsulates more than ten years, and circuit overload connects
The various fever hidden danger of head poor contact etc. are unable to get rectification and eliminate, artificial packaging conductive wire also to illegal electricity stealing also this have
Opportunity, related taiwan area line loss is higher, and running losses are inestimable all the year round, cause the loss of state-owned assets.
Invention content
Present invention solves the technical problem that being：A kind of laying of distribution low-voltage circuit and load access device and its access are provided
Method, to solve above-mentioned problems of the prior art.
The technical solution that the present invention takes is：A kind of laying of distribution low-voltage circuit and load access device, including junction box
Body, wiring babinet is fixedly connected on wall and above advertisement door head, end of incoming cables passes through four cable connections to nearest electricity
On bar on distribution line, outlet end is connected with multiple user's single-phase electric meters and user's power ammeter, power supply electricity by service cable
Cable is laid in outside advertisement door head.
Preferably, upside is provided with the three-phase main bus-bar row that trapezoidal step is arranged, the main mother of three-phase in above-mentioned junction box's body
It is connected with three-phase bus row's terminal plate on line row and stretches out top, three-phase main bus-bar row is connected to 3P air breaks by line conductor row
Device inlet wire port and the three-phase kilowatt-hour meter bus bar that the trapezoidal step arrangement in downside is connected respectively to by cable, three-phase kilowatt-hour meter busbar
Row is connected with multiple 2P air-breaks, 2P air-breaks be vacantly connected on wiring babinet and with before and after 3P air-breaks
Arrangement, 3P air-break leading-out terminals are connected to user's power ammeter, and 2P air-break leading-out terminals are connected to user's single-phase electricity
Table further includes the zero phase bus bar installed in wiring babinet right side wall, and it is female that zero phase bus bar is wired to zero phase ammeter
Line is arranged, and zero phase ammeter bus bar is wired to each 2P air-breaks.
Preferably, above-mentioned three-phase main bus-bar row is fixedly connected on by two symmetrical trapezoidal insulated columns one on wiring babinet,
Two trapezoidal insulated columns, one upside is fixedly connected with insulation board one.
Preferably, above-mentioned three-phase kilowatt-hour meter bus bar and zero phase ammeter bus bar are fixed by two symmetrical trapezoidal insulated columns two
It is connected on suspension frame, suspension frame is fixedly connected on wiring babinet, and two trapezoidal insulated columns, one upside is fixedly connected with insulation board
Two, 2P air-break are fixedly connected on suspension frame.
Preferably, above-mentioned zero phase bus bar is fixedly connected on by insulated column on wiring babinet.
Preferably, the above-mentioned wiring bottom of box is fixedly connected with holder, and holder includes the rear side for being mutually perpendicular to be fixedly connected
Fixed frame connects frame with bottom, and rear side fixed frame is fixedly connected on wall, and bottom connection frame is provided with the bar shaped of connection babinet
Hole.
Preferably, above-mentioned holder front end, which extends external one section of junction box, can mount insulating ladder, and it is oblique that both sides are provided with reinforcing
It supports, the main connecting hole into conductor strain clamp of connection is provided on diagonal brace.
Preferably, a kind of above-mentioned distribution low-voltage circuit laying and load access device further include detachably connecting with side face
The mast-up connect.
Preferably, above-mentioned mast-up includes sunpender and Hanging roller, and sunpender is the L-shaped frame to stand upside down, and lower end is solid by two bolts
Surely it is connected on holder, upper end horizontal end is connected with the Hanging roller of pendency.
The cut-in method of a kind of laying of distribution low-voltage circuit and load access device, this method are：From nearest low tension
Bar draws four lines and enters wiring babinet, and carries out plant-grid connection and load by backbone point of wiring babinet, and load connects every
The 10 family supply district of unit of 14 meters, 4 shop fronts of a ammeter wiring case control, dedicated box to electric supply meter use anti-electricity-theft nothing
Connector low-voltage cable, straight line cabling outside advertisement door head between second floor and advertisement door head, wiring babinet ground connection connect in box shell
Draw not small 16 squares lead by making somebody a mere figurehead mode, returns to and take thermoelectricity bar and enter ground using 1.5 meters of ground connection angle steel in the electric pole root.
Beneficial effects of the present invention：Compared with prior art, effect of the present invention is as follows：
1）Adaptation to local conditions, construction coordination difficulty is small, resistance work risk is low, cost-effective, economically feasible：a）Low pressure backbone makes somebody a mere figurehead edge
Wall inlet, resistance work risk is small, it is low to coordinate difficulty；b）Box width may be configured as 0.65 meter, and window and window spacing are about on 1.8 meters of left sides
The right side, installation ammeter Special wiring box space are abundant；c）The height of installation is only 0.3 ~ 0.5 meter higher than conventional laying mode, convenient for dimension
Shield maintenance；d）Line arrangement is apart from short, economically feasible, and voltage drop is small, quality of voltage is good.It occupies little space, babinet is per road outlet
Have and be spaced apart design protection, greatly reduces the probability that fire hazard occurs；e）It effectively avoids former table front from directly taking main line to cause
Joining seam generate heat hidden danger, the original fire point of taking for disperseing, hiding is concentrated in case convenient for management.It is spaced apart compression joint type connection more may be used
It leans on, effectively administers fever hidden danger, reduce line loss, reduce fault outage；f）It is connect in distribution box body shell and draws not small 16 squares lead
By making somebody a mere figurehead mode, returns to and take thermoelectricity bar and enter ground, safety higher using 1.5 meters of ground connection angle steel in the electric pole root；
2）Wiring babinet each household ammeter has per road outlet is spaced apart overload, overcurrent protection, greatly reduces fire hazard
Probability；
3）The quality of voltage that is be easy to cause for the low voltage wiring load access way of former " Integrated Service Digital Network hangs up a Chinese lantern " is poor, line loss height
The problem of, the wiring bottom of box can take intermediate outlet, and both ends diffusion left and right radiation, power supply distance is short, quality of voltage is good, line
Path loss consumption is low；
4）It improves and safeguards, maintenance, expands dress table efficiency, while reducing the offline quantity of electric pole, reducing power lug, reduction personnel and step on bar
Probability reduces job safety risk；
5）Caused by directly taking low pressure backbone for former table front joining seam generate heat potential problem, originally extremely disperse, hide
Load take fire point concentrate on case in convenient for management, be spaced apart compression joint type connection it is more reliable, can effectively control, eliminate generate heat hidden danger,
Line loss is reduced, fault outage is reduced；
6）Fault outage is reduced, power supply reliability is improved, promotes user power utilization satisfaction；
7）Wiring babinet heat dissipation performance is strong, and space is reasonable, and man-machine efficacy is good, convenient for the development of the work such as load access, maintenance；
8）For single-phase electric energy meter, dynamic power table load access feature, according to section load carrying requirement to conducting wire into and out of
Minimum safe distance and operating personnel's box house working space between line, breaker are arranged, and accomplish space bit
It is safe, reasonable to set, and man-machine power is excellent；
9）Compared to traditional load junction box Novel box, each switch has an independent cylinder space, space availability ratio higher, load into,
Outlet is neat and does not interlock mutually, increases the safety of the anti-short circuit of air major insulation between conducting wire, and vertical outlet method is conducive to case
Interior air-flow is unobstructed, and cooperation babinet heat transmission gas column can effectively enhance the heat dissipation performance of box house；
10）The three-phase main bus-bar row of ladder arrangement and three-phase kilowatt-hour meter bus bar intuitively may be used convenient for clearly mark and the design of split-phase sequence
It leans on, makes the access of single-phase meter load no longer blindness, specification safety, the hidden danger of Three-Phase Transformer injustice is effectively administered from source；
11）Hot line job can easily be switched to safe power failure operation, safety is improved and also reduce a head repairing troubleshooting simultaneously
Look into scarce work difficulty.Conveniently access way improves the working efficiency that dress table connects electricity；
12）Joining seam fever hidden danger caused by effectively avoiding former table front from directly taking main line concentrates original fiery put of taking disperseed, hidden
In in case convenient for management.It is more reliable to be spaced apart compression joint type connection, effectively administers fever hidden danger, reduces line loss, reduce fault outage；
13）Be spaced apart can trip protection cut off short circuit current in time, effectively prevent the accidents such as fire caused by short circuit, equipment damage,
Event avoids influence and impact of the branch trouble to upper level power supply, reduces loss, and improving power supply can property；
14）Wiring babinet is supported using holder, further ensures that wiring case supports install safety, babinet is stretched out using front end
One section, on the one hand it is convenient for bottom power ammeter and single-phase electric meter outlet, on the other hand, it is ensured that babinet is installed, led into conducting wire
Secure accessing and from now on the ascending stair personnel when carrying out the operations such as O＆M, repairing, the access of meter load on babinet liberate both hands, just
In mounting insulating ladder and stand progress distribution box maintenance and handling, processing safety higher, man-machine efficacy is good, improves work effect
Rate effectively prevent " height pendant " safety accident, is affiliated to and is affiliated to two insurance bindings convenient for the binding of safety belt；
15）It using dismountable mast-up, is installed on holder, can realize the Fast Installation of wiring babinet, time saving province
Power, processing safety is high, and assembly and disassembly are easy to use, reusable, reduces equipment cost, effectively avoids the section more in people's vehicle
Using the large-scale suspender such as crane, difficulty of construction is reduced, installation effectiveness is improved；
16）For the main fixation into conductor strain clamp and gold utensil different angle inlet wire, make the height that main inlet wire is more flexible, constructs
It is lower, it is farther from the window of user, be conducive to maintenance from now on and maintenance；
17）The main connecting hole into conductor strain clamp of connection is provided on diagonal brace, for it is main into conductor strain clamp and gold utensil not
With the fixation of angle inlet wire, keep the height that main inlet wire is more flexible, constructs lower, it is farther from the window of user, be conducive to from now on
It safeguards and overhauls；
18）Using the holder of frame structure, stability of strutting system is high.
Description of the drawings
Fig. 1 is the structural schematic diagram of access device；
Fig. 2 is the attachment structure schematic diagram of the junction box of existing 50m；
Fig. 3 is the attachment structure schematic diagram of junction box；
Fig. 4 is junction box's structural schematic diagram；
Fig. 5 is each member connection structure schematic diagram of installation in junction box（After removing box shell）；
Fig. 6 is installing component attachment structure schematic diagram in junction box；
Fig. 7 is babinet connection mounting structure schematic diagram；
Fig. 8 is supporting structure schematic diagram；
Fig. 9 is babinet forward sight structural schematic diagram；
Figure 10 is babinet left view structural representation；
Figure 11 is babinet left view structural representation；
Figure 12 is the forward sight structural schematic diagram of Fig. 5；
Figure 13 is the right side structural representation of Fig. 5；
Figure 14 is the overlooking structure diagram of Fig. 5；
Figure 15 is holder forward sight structural schematic diagram；
Figure 16 is holder left view structural representation；
Figure 17 is holder overlooking structure diagram；
Figure 18 is mast-up connection forward sight structural schematic diagram；
Figure 19 is mast-up connection left view structural representation；
Figure 20 is that the connection of holder left end is main into conductor strain clamp structural schematic diagram；
Figure 21 is that the connection of holder right end is main into conductor strain clamp structural schematic diagram.
Specific implementation mode
Below in conjunction with the accompanying drawings and the present invention is described further in specific embodiment.
Embodiment 1：As shown in Fig. 1-Figure 21, a kind of laying of distribution low-voltage circuit and load access device, including junction box
Body 1, wiring babinet 1 is fixedly connected on wall 2 and positioned at 3 top of advertisement door head, end of incoming cables is by four cable connections to recently
Electric pole 4 on distribution line, outlet end is connected with multiple user's single-phase electric meters 6 and user's power ammeter by service cable 5
7, service cable 5 is laid in outside advertisement door head 3.
Preferably, upside is provided with the three-phase main bus-bar row 8 that trapezoidal step is arranged, three-phase master in above-mentioned wiring babinet 1
Three-phase bus is fixedly connected with by insulating supporting column 41 on bus bar 8 and arranges terminal plate 9 and stretching top, three-phase main bus-bar row 8
It is connected to 10 inlet wire port of 3P air-breaks by line conductor row 9 and the trapezoidal step in downside is connected respectively to by cable and arrange
Three-phase kilowatt-hour meter bus bar 11, three-phase kilowatt-hour meter bus bar 11 is connected with multiple 2P air-breaks 12, and 2P air-breaks 12 are outstanding
Sky is connected on wiring babinet 1 and is connected to user with arrangement, 10 leading-out terminal of 3P air-breaks before and after 3P air-breaks 10
Power ammeter 7,12 leading-out terminal of 2P air-breaks are connected to user's single-phase electric meter 6, further include installation in 1 right side wall of wiring babinet
Zero phase bus bar 13, zero phase bus bar 13 is wired to zero phase ammeter bus bar 14, and zero phase ammeter bus bar 14 is logical
It crosses conducting wire and is connected to each 2P air-breaks 12, wiring tank surface coats insulating paint, good insulating.
Preferably, above-mentioned three-phase main bus-bar row 8 is fixedly connected on wiring babinet 1 by two symmetrical trapezoidal insulated columns 1
On, two trapezoidal insulated columns, one 15 upside is fixedly connected with insulation board 1.
Preferably, 11 and zero phase ammeter bus bar 14 of above-mentioned three-phase kilowatt-hour meter bus bar passes through two symmetrical trapezoidal insulated columns two
17 are fixedly connected on suspension frame 18, and suspension frame 18 is fixedly connected on wiring babinet 1, and two trapezoidal insulated columns, one 17 upside is fixed
It is connected with insulation board 2 19,2P air-breaks 12 are fixedly connected on suspension frame 18.
Preferably, above-mentioned zero phase bus bar 13 is fixedly connected on by insulated column 20 on mounting plate 2 31, and installation is solid
Fixed board 2 31 is fixedly connected on 1 side wall of wiring babinet.
1 upper end left and right side of wiring babinet is respectively provided with nylon plastic(s) Waterproof connector of cable 38, the setting of 1 bottom of wiring babinet
Dynamic ammeter load outlet hole 36 and single-phase electric meter load outlet hole 37, under 34 front end of 1 left and right sidewall of wiring babinet and overhead guard
Portion is provided with heat emission hole 35, and the heat emission hole that overhead guard and side are interconnected radiates convenient for wiring babinet, external on wiring babinet 1
Left and right sides is both provided with hanging ring 39, and 1 right side of wiring babinet is provided with earth stud 40, the connection ground wire of earth stud 40.
Trapezoidal insulated column 1, suspension frame 18 and 3P air-breaks 10 are fixedly connected in mounting plate 1
On, mounting plate 1 is fixedly connected in babinet 1 on rear wall
Preferably, above-mentioned 1 bottom of wiring babinet is fixedly connected with holder 21, and holder 21 includes the rear side for being mutually perpendicular to be fixedly connected
Fixed frame 22 connects frame 23 with bottom, and rear side fixed frame 22 is fixedly connected on wall 2, and bottom connection frame 23 is provided with connecting box
The strip-shaped hole 24 of body, 21 front end of above-mentioned holder, which extends outer one section of wiring babinet 1, can mount insulating ladder, and it is oblique that both sides are provided with reinforcing
29 are supportted, main 14 connecting holes 30 of ф into conductor strain clamp 33 of connection are provided on diagonal brace 29, bottom connects the setting of 23 front end of frame
There are main 14 connecting holes of ф into conductor strain clamp of connection, holder and diagonal brace to be made of a plurality of angle steel of L50X5, holder is each
Component is attached with welding manner, and holder is attached with diagonal brace using M12 bolts and firm, and main support front side length exceeds
Babinet 10CM can facilitate reliable offer safety belt, two insurance bindings and insulating ladder while not influencing bottom of box outlet
Be affiliated to, forward position holder both ends, the punching of diagonal brace stage casing lean on two side perforating of wall side stand for mounting conducting wire, removable for installing
Unload interim hoisting bracket.By wall side four, holder angle steel makes a call to 8 mounting holes for fixing altogether.
The rack bearing power is 75kN, and 1kN is approximately equal to 100kg power, and 75kN is approximately equal to 7500kg, while holder both sides have 2
Root is all the diagonal brace of 45 degree of the angle steel of L50X5, and rack bearing power is stronger, and holder is consolidated using 8 M12X105 expansion bolts altogether
Fixed, City Building brick wall is commonly No. 75 or No. 100 mortar strength brick walls, and 1 M12X105 expansion bolt can reach 440kg
Pulling force, 245kg shear values, 8 M12X105 expansion bolt pulling force 3520kg shear 1960kg.It now examines with considering according to real work
Ammeter wiring babinet weight 30kg；2 staff's weight 160kg；Multi-functional holder dead weight 20kg；8 meters of insulating ladders nearly weigh 30kg,
Lodge holding state about weight has 10kg；Main inlet wire pulling force 80kg；The outlet state of overfilling has 25kg, gross weight to amount to 355kg.
It is calculated with the expansion bolt shearing 1960kg of bearing capacity minimum, babinet installation can be reached and ongoing operations are total
About 6 times of strength of weight, safety can be guaranteed.
Preferably, a kind of above-mentioned distribution low-voltage circuit laying and load access device further include detachable with 21 side of holder
The mast-up 25 of connection.
Preferably, above-mentioned mast-up 25 includes sunpender 26 and Hanging roller 27, and sunpender 26 is the L-shaped frame to stand upside down, and lower end passes through
Two bolts 28 are fixedly connected on the stent 21, and upper end horizontal end is connected with the Hanging roller 27 of pendency, and sunpender uses L50x5 angle steel
It makes, 1.5 meters long, 0.5 meter wide, hypomere makes a call to 2 14 holes ф, and for installing M12 bolts, top is to reinforce sunpender reliability to be welded with
1 14 hole for hoist of ф is made a call to for installing Hanging roller in one 0.4 meter of 50x5 band steel brace, upper end.
25 use principle of mast-up：When installing wiring babinet, holder is fixed on wall by operating personnel with ladder first
On face, then detachable interim hanger erection is fixed on the right side of holder on sunpender mounting hole with two M12 bolts, utilizes lifting
After ammeter wiring babinet is lifted into the firm wiring babinet of installation site bolt by the pulley and rope of top of the trellis, dismounting is hung temporarily
Bar completes installation.
The cut-in method of a kind of laying of distribution low-voltage circuit and load access device, this method are：From nearest low tension
Bar draws four lines and enters wiring babinet, and carries out plant-grid connection and load by backbone point of wiring babinet, and load connects every
The 10 family supply district of unit of 14 meters, 4 shop fronts of a ammeter wiring case control, wiring babinet to electric supply meter is using anti-electricity-theft
Non junction low-voltage cable, straight line is along cabling outside advertisement door head between second floor and advertisement door head, and hangs that " power channel is set
It applies, forbids covering, suspension！" warning sign, wiring babinet be stainless steel, wiring babinet ground connection, box shell connect draw it is not small by 16
Squares lead returns to by making somebody a mere figurehead mode and takes thermoelectricity bar and enter ground using 1.5 meters of ground connection angle steel in the electric pole root,.
The above description is merely a specific embodiment example, scope of protection of the present invention is not limited thereto.It is ripe
It knows the those skilled in the art in the technical scope disclosed by the present invention, change or replacement mode can be easily found, these
It should be covered by the protection scope of the present invention.For this purpose, protection scope of the present invention should be with the protection model of the claim
Subject to enclosing.
Claims (10)
1. a kind of distribution low-voltage circuit laying and load access device, it is characterised in that：Including wiring babinet（1）, wiring babinet
（1）It is fixedly connected on wall（2）Above and it is located at advertisement door head（3）Top, end of incoming cables pass through four cable connections to nearest electric pole
（4）On upper distribution line, outlet end passes through service cable（5）It is connected with multiple user's single-phase electric meters（6）With user's power ammeter
（7）, service cable（5）Be laid in advertisement door head（3）It is external.
2. a kind of distribution low-voltage circuit laying according to claim 1 and load access device, it is characterised in that：Junction box
Body（1）Interior upside is provided with the three-phase main bus-bar row of trapezoidal step arrangement（8）, three-phase main bus-bar row（8）On be connected with three-phase
Bus bar terminal plate（9）And top is stretched out, three-phase main bus-bar row（8）Pass through line conductor row（9）It is connected to 3P air-breaks（10）
Inlet wire port and the three-phase kilowatt-hour meter bus bar that the trapezoidal step arrangement in downside is connected respectively to by cable（11）, three-phase kilowatt-hour meter mother
Line is arranged（11）It is connected with multiple 2P air-breaks（12）, 2P air-breaks（12）Vacantly it is connected to wiring babinet（1）It is upper and
With 3P air-breaks（10）Front and back arrangement, 3P air-breaks（10）Leading-out terminal is connected to user's power ammeter（7）, 2P air
Breaker（12）Leading-out terminal is connected to user's single-phase electric meter（6）, further include wiring babinet（1）The zero phase busbar installed in right side wall
Row（13）, zero phase bus bar（13）It is wired to zero phase ammeter bus bar（14）, zero phase ammeter bus bar（14）Pass through
Conducting wire is connected to each 2P air-breaks（12）.
3. a kind of distribution low-voltage circuit laying according to claim 2 and load access device, it is characterised in that：Three-phase master
Bus bar（8）Pass through two symmetrical trapezoidal insulated columns one（15）It is fixedly connected on wiring babinet（1）On, two trapezoidal insulated columns one
（15）Upside is fixedly connected with insulation board one（16）.
4. a kind of distribution low-voltage circuit laying according to claim 2 and load access device, it is characterised in that：Three-phase electricity
Table bus bar（11）With zero phase ammeter bus bar（14）Pass through two symmetrical trapezoidal insulated columns two（17）It is fixedly connected on suspension frame
（18）On, suspension frame（18）It is fixedly connected on wiring babinet（1）On, two trapezoidal insulated columns one（17）Upside is fixedly connected with insulation
Plate two（19）, 2P air-breaks（12）It is fixedly connected on suspension frame（18）On.
5. a kind of distribution low-voltage circuit laying according to claim 2 and load access device, it is characterised in that：Zero phase is female
Line is arranged（13）Pass through insulated column（20）It is fixedly connected on wiring babinet（1）On.
6. a kind of distribution low-voltage circuit laying according to claim 1 and load access device, it is characterised in that：Junction box
Body（1）Bottom is fixedly connected with holder（21）, holder（21）Including the rear side fixed frame for being mutually perpendicular to be fixedly connected（22）The bottom and
Portion connects frame（23）, rear side fixed frame（22）It is fixedly connected on wall（2）On, bottom connects frame（23）It is provided with connection babinet
Strip-shaped hole（24）.
7. a kind of distribution low-voltage circuit laying according to claim 6 and load access device, it is characterised in that：Holder
（21）Front end extends wiring babinet（1）Outer one section can mount insulating ladder, and both sides are provided with reinforcing diagonal brace（29）, diagonal brace（29）On
It is provided with the main connecting hole into conductor strain clamp of connection（30）.
8. a kind of distribution low-voltage circuit laying according to claim 6 and load access device, it is characterised in that：Further include
With holder（21）The mast-up that side is detachably connected（25）.
9. a kind of distribution low-voltage circuit laying according to claim 8 and load access device, it is characterised in that：Mast-up
（25）Including sunpender（26）And Hanging roller（27）, sunpender（26）For the L-shaped frame of handstand, lower end passes through two bolts（28）It is fixedly connected
In holder（21）On, upper end horizontal end is connected with the Hanging roller of pendency（27）.
10. according to the cut-in method of any a kind of layings of distribution low-voltage circuit and load access device of claim 1-9,
It is characterized in that：This method is：Draw four lines from nearest low-pressure electric pole and enter wiring babinet, and is clicked through by maincenter of wiring babinet
Row plant-grid connection and load, 10 family of the unit power supply of 14 meters, 4 shop fronts of each ammeter wiring case control of load connection
Range, dedicated box to electric supply meter use anti-electricity-theft non junction low-voltage cable, and straight line is along advertisement between second floor and advertisement door head
Cabling outside door head, wiring babinet ground connection connect in box shell and draw not small 16 squares lead by making somebody a mere figurehead mode, returns to and take thermoelectricity bar simultaneously
Enter ground using 1.5 meters of ground connection angle steel in the electric pole root.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810426146.0A CN108336734B (en) | 2018-05-07 | 2018-05-07 | Distribution network low-voltage line laying and load access device and access method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810426146.0A CN108336734B (en) | 2018-05-07 | 2018-05-07 | Distribution network low-voltage line laying and load access device and access method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108336734A true CN108336734A (en) | 2018-07-27 |
| CN108336734B CN108336734B (en) | 2024-04-30 |
Family
ID=62934925
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810426146.0A Active CN108336734B (en) | 2018-05-07 | 2018-05-07 | Distribution network low-voltage line laying and load access device and access method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN108336734B (en) |
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| CN2429835Y (en) * | 2000-07-07 | 2001-05-09 | 王晋恩 | Power meter box |
| CN201303212Y (en) * | 2008-10-23 | 2009-09-02 | 孙道和 | Household electric meter box |
| CN203119313U (en) * | 2013-03-19 | 2013-08-07 | 长春设备工艺研究所 | Trapezoid busbar support |
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| CN108336734B (en) | 2024-04-30 |
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