CN208445263U - Cable branch device based on overload and short-circuit protection - Google Patents
Cable branch device based on overload and short-circuit protection Download PDFInfo
- Publication number
- CN208445263U CN208445263U CN201821205246.2U CN201821205246U CN208445263U CN 208445263 U CN208445263 U CN 208445263U CN 201821205246 U CN201821205246 U CN 201821205246U CN 208445263 U CN208445263 U CN 208445263U
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- China
- Prior art keywords
- cable
- support
- branch
- short
- ontology
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- Expired - Fee Related
Links
- 239000012212 insulator Substances 0.000 claims abstract description 27
- 230000005611 electricity Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 12
- 230000015556 catabolic process Effects 0.000 abstract description 8
- 206010037660 Pyrexia Diseases 0.000 abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 239000004020 conductor Substances 0.000 description 7
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Cable Accessories (AREA)
Abstract
The utility model discloses the cable branch devices based on overload and short-circuit protection; including fixed frame; the fixed frame is made of body frame, first support and second support; the side of the first support and second support is fixed by the connecting rod and is connected with edge insulator pipe; the edge insulator pipe is internally provided with cable ontology; the surface of the cable ontology is arranged with single branch heat-shrinkable T bush, and the cable ontology includes two core cable, three-core cable, quad or multicore cable.The utility model passes through setting fixed frame; achieve the effect that support edge insulator pipe; pass through edge insulator pipe; achieve the effect that fix cable ontology, by single branch heat-shrinkable T bush, achieve the effect that cable main body protection; also facilitate simultaneously and edge insulator pipe and cable ontology are fixed; the device can protect branch cable, and branch cable joint fever be not in breakdown and short circuit cause have a power failure situation, facilitate operation people carry out using.
Description
Technical field
The utility model relates to field of cable technology, specially the cable branch device based on overload and short-circuit protection.
Background technique
Trunk formula is usually taken in power supply-distribution system, and the emanant mode combined is powered.For high level, super high-rise building tree
Dry type it is more, the setting additionally, due to electric substation's low-voltage distribution interval is limited, and many electrical equipments are needed using trunk formula
Power mode is powered to save transformer and distribution station space.
Cable conductor needs overload and short-circuit protection.6.3.1 item in " low-voltage distribution design specification " GB50054-2011
Provide distribution line overload protection, should temperature rise of conductor caused by overload electric current to the insulation of conductor, connector, terminal or
Substance around conductor is cut off the power before damaging；6.2.5 rules and regulations in " low-voltage distribution design specification " GB50054-2011
It is fixed that " short-circuit protective device should be installed in the place that circuit head end and return conductors current-carrying capacity reduce.It is led when circuit cannot be arranged in
When the place that body current-carrying capacity reduces, it is necessary to take measures." among these just include short-circuit protective device to return conductors current-carrying capacity most
This segment length of small place is significantly limited no more than 3m for electrical length.
The reason of conductor current-carrying capacity reduces includes that sectional area, material, system of laying change.Trunk formula power reguirements
Go out small-sized branch cable in trunk cable top set, the cable branched out is smaller than original trunk cable sectional area, and current-carrying capacity is small, mistake
Load-bearing capacity and short-circuit tolerance are all smaller than former trunk cable, then the overload of trunk cable front end and short-circuit protection
The branch cable after reducing less than the cross-section of cable is protected, and it is easy to appear breakdown and short circuit to cause for branch cable joint fever
Power failure situation, thus influence people use.
Utility model content
The purpose of this utility model is to provide the cable branch device based on overload and short-circuit protection, have can to point
Branch cable is protected, and branch cable joint adstante febre is not in that breakdown and short circuit cause the advantages of having a power failure, and solving can not
Branch cable is protected, it is easy to appear breakdown and short circuit to cause the problem of having a power failure for branch cable joint fever.
To achieve the above object, the utility model provides the following technical solutions: the cable based on overload and short-circuit protection
Branch unit, including fixed frame, the fixed frame are made of body frame, first support and second support, the first support and
The side of two brackets, which is fixed by the connecting rod, is connected with edge insulator pipe, and the edge insulator pipe is internally provided with cable sheet
Body, the surface of the cable ontology are arranged with single branch heat-shrinkable T bush.
Preferably, the cable ontology includes two core cable, three-core cable, quad or multicore cable.
Preferably, the edge insulator pipe is clamped by buckle.
Compared with prior art, the beneficial effects of the utility model are as follows:
The utility model is achieved the effect that support edge insulator pipe, by edge insulator pipe, be reached pair by setting fixed frame
The fixed effect of cable ontology achieved the effect that by single branch heat-shrinkable T bush to cable main body protection, while also being facilitated pair
Edge insulator pipe and cable ontology are fixed, which can protect branch cable, and branch cable joint generates heat
Be not in breakdown and short circuit cause have a power failure situation, facilitate operation people carry out using.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
In figure: 1 fixed frame, 101 body frames, 102 first supports, 103 second supports, 2 edge insulator pipes, 3 cable ontologies, 4
Single branch heat-shrinkable T bush.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, the cable branch device based on overload and short-circuit protection, including fixed frame 1, fixed frame 1 is by leading
Frame 101, first support 102 and second support 103 are constituted, and the quantity of first support 102 and second support 103 is several, and
First support 102 and second support 103 constitute one group, and at least two groups, the surface of fixed frame 2 is provided with a set of overload and short
Road current protection outgoing line device, can protect cable, and the side of first support 102 and second support 103 passes through connection
Bar is fixedly connected with edge insulator pipe 2, and edge insulator pipe 2 is clamped by buckle, and edge insulator pipe 2 is internally provided with cable ontology 3, will
Cable ontology 3 is pushed aside, and copper core is leaked out, and single branch heat-shrinkable T bush 4 is set in copper core surface, the copper core of each cable is all
It is arranged, single branch heat-shrinkable T bush 4 is put into the edge insulator pipe 2 of side like this then, by the cooperation of two edge insulator pipes 2,
It is fixed, copper core will not be slipped in single branch heat-shrinkable T bush 4, and the isolation of copper core coverlet branch heat-shrinkable T bush 4 of each cable is opened,
Make not contacting between copper core, and centre has body frame 101 to separate again, joint heat dissipation is good, is less prone to branch cable and connects
Hair thermal breakdown and short circuit cause the situation having a power failure, and cable ontology 3 includes two core cable, three-core cable, quad or more
Core cable, the surface of cable ontology 3 are arranged with single branch heat-shrinkable T bush 4, the device try out in 100A, 160A, 250A, 400A,
The overload of 630A electric current and short circuit current protection can peel off single branch if the cable copper core of joint goes wrong
Heat-shrinkable T bush 4 respectively removes the edge insulator pipe 2 on cable copper core, fastens, can be reused again after Measuring error is good,
By the way that fixed frame 1 is arranged, achievees the effect that support edge insulator pipe 2, by edge insulator pipe 2, reach fixed to cable ontology 3
Effect, by single branch heat-shrinkable T bush 4, achieve the effect that cable ontology 3 protect, while also facilitate to 2 He of edge insulator pipe
Cable ontology 3 is fixed, which can protect branch cable, and branch cable joint fever is not in hit
Wear and short circuit cause have a power failure situation, facilitate operation people carry out using.
In use, achieving the effect that support edge insulator pipe 2, by edge insulator pipe 2, reaching pair by setting fixed frame 1
The fixed effect of cable ontology 3 achievees the effect that protect cable ontology 3 by single branch heat-shrinkable T bush 4, while also side
Just edge insulator pipe 2 and cable ontology 3 are fixed, which can protect branch cable, and branch cable connects
Hair heat be not in breakdown and short circuit cause have a power failure situation, facilitate operation people carry out using.
In summary: should cable branch device based on overload and short-circuit protection, by fixed frame 1, edge insulator pipe 2,
The cooperation of cable ontology 3 and single branch heat-shrinkable T bush 4, branch cable can not be protected by solving, branch cable joint hair
It is easy to appear breakdown and short circuit to cause the problem of having a power failure for heat.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (3)
1. the cable branch device based on overload and short-circuit protection, including fixed frame (1), it is characterised in that: the fixed frame
(1) it is made of body frame (101), first support (102) and second support (103), the first support (102) and second support
(103) side, which is fixed by the connecting rod, to be connected with edge insulator pipe (2), and the edge insulator pipe (2) is internally provided with cable
Line ontology (3), the surface of the cable ontology (3) are arranged with single branch heat-shrinkable T bush (4).
2. the cable branch device according to claim 1 based on overload and short-circuit protection, it is characterised in that: the electricity
Cable ontology (3) includes two core cable, three-core cable, quad or multicore cable.
3. the cable branch device according to claim 1 based on overload and short-circuit protection, it is characterised in that: described exhausted
Edge card pipe (2) is clamped by buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821205246.2U CN208445263U (en) | 2018-07-27 | 2018-07-27 | Cable branch device based on overload and short-circuit protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821205246.2U CN208445263U (en) | 2018-07-27 | 2018-07-27 | Cable branch device based on overload and short-circuit protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208445263U true CN208445263U (en) | 2019-01-29 |
Family
ID=65086101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821205246.2U Expired - Fee Related CN208445263U (en) | 2018-07-27 | 2018-07-27 | Cable branch device based on overload and short-circuit protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208445263U (en) |
-
2018
- 2018-07-27 CN CN201821205246.2U patent/CN208445263U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190129 |