CN203632143U - Low voltage power cable and control cable combined bridge stand - Google Patents
Low voltage power cable and control cable combined bridge stand Download PDFInfo
- Publication number
- CN203632143U CN203632143U CN201320798825.3U CN201320798825U CN203632143U CN 203632143 U CN203632143 U CN 203632143U CN 201320798825 U CN201320798825 U CN 201320798825U CN 203632143 U CN203632143 U CN 203632143U
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- crane span
- span structure
- power cable
- control cables
- cable
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Abstract
The utility model provides a low voltage power cable and control cable combined bridge stand characterized in that a relatively independent and closed control cable bridge stand capable of preventing electromagnetic interference is arranged in a power cable bridge stand; the advantages are that when the control cable and the low voltage power cable are simultaneously laid, the electromagnetic interference to the control cable by the low voltage power cable can be effectively reduced; hole slot design is arranged around a slot type power bridge stand steel carrier, so the low voltage power cable can be easily radiated in the bridge stand pavement; outgoing wire construction of the control cable in the technical scheme can be realized in a side wall, so construction difficulty is prevented.
Description
Technical field
The utility model relate to a kind of in the time that lv power cable and control cables lay in crane span structure the composite type slot type steel crane span structure that adopts, keeping crane span structure to have hole slot cable to dispel the heat good in the situation that, effectively reduce lv power cable electromagnetic interference to control cables (particularly small-signal and low level signal) in the time of operation, be mainly used in factory's Design of Cable Layout and transformation, belong to technical field of electricity.
Background technology
Existing most of power cable and control cables are laid in same crane span structure, according to " design of civil buildings standard " JGJ16-2008,8.10.8 article of regulation: the cable of different voltage, different purposes cables is when condition is restricted while being arranged on same crane span structure, and application dividing plate separates.In addition, according to " steel cable bridge engineering design standard " CECS31:91,3.1.1 article of regulation: the cable loop that needs shielded electrical to disturb, should select and cover anapsid pallet.
In practice of construction situation, there is part unit in charge of construction not accomplish the cable of the cable of different electric pressures, different purposes dividing plate to separate completely.In some situation, cable is covering while laying in anapsid pallet, and temperature can exceed the maximum operation (service) temperature of cable, has not only reduced the danger that has also improved fire useful life of cable.While increasing hole slot if consider heat radiation on crane span structure, control cables will be subject to the electromagnetic field effects of lv power cable, particularly will be subject to larger impact for small-signal and low level signal.
Secondly control cables, is provided with in the crane span structure of dividing plate, in the middle of dividing plate and cover plate, always leaves gap, can not play the effect of electromagnetic shielding completely, so also can be subject to the electromagnetic interference of lv power cable partly in the time of operation.
Summary of the invention
The technical problems to be solved in the utility model is: in the situation that lv power cable and control cables are laid in same crane span structure, improve the heat radiation of lv power cable in crane span structure, and reduce the electromagnetic interference for control cables.
In order to solve the problems of the technologies described above, the technical solution of the utility model has been to provide a kind of lv power cable and control cables combination crane span structure, comprise power cable crane span structure, it is characterized in that: in power cable crane span structure, be provided with the control cables crane span structure that relatively independent sealing can anti-electromagnetic interference.
Preferably, described power cable crane span structure at least comprises power cable crane span structure teel pallet.
Preferably, described control cables crane span structure comprises control cables crane span structure teel pallet, control cables crane span structure teel pallet is positioned at described power cable crane span structure teel pallet and is fixed on its inwall, and control cables crane span structure steel cover plate is positioned at the top of control cables crane span structure teel pallet.
Preferably, described control cables crane span structure teel pallet and described power cable crane span structure teel pallet entirety adopt a block plate to make.
Preferably, above described power cable crane span structure teel pallet, be provided with electric power crane span structure steel cover plate.
Preferably, around described power cable crane span structure teel pallet, have hole slot.
The technical scheme that the utility model provides has the following advantages compared with conventional art:
1, in the time that control cables and lv power cable lay simultaneously, can effectively reduce the electromagnetic interference of lv power cable for control cables.
2, slot type electric power crane span structure teel pallet has hole slot design around, is conducive to the heat radiation of laying in crane span structure of lv power cable.
3, this technical scheme control cables outlet construction, can carry out outlet at sidewall, does not increase difficulty of construction.
Accompanying drawing explanation
The combination slot type steel portal structure schematic diagram that Fig. 1 provides for the utility model
The combination slot type steel crane span structure schematic cross-section that Fig. 2 provides for the utility model.
Embodiment
For the utility model is become apparent, hereby with preferred embodiment, and coordinate accompanying drawing to be described in detail below.
With one for the be laid in example that is designed to of same crane span structure of industrial premises power cable and control cables, one that the utility model provides combination slot type steel crane span structure is that the control cables crane span structure that a relatively independent sealing can anti-electromagnetic interference is set in power cable crane span structure.Specifically formed by electric power crane span structure steel cover plate 1, control cables crane span structure steel cover plate 2, power cable crane span structure teel pallet 3 and control cables crane span structure teel pallet 4.
Be illustrated in figure 1 combination slot type steel portal structure schematic diagram, at power cable crane span structure teel pallet 3 interior sides, control cables crane span structure teel pallet 4 is set, and above control cables crane span structure teel pallet 4, control cables bridge cover plate 2 is set, in order to shield the electromagnetic interference of power cable for control cables.Electric power crane span structure teel pallet 3 has hole slot around, for power cable laying, and increases the heat radiation of internal power cable.On slot type electric power crane span structure teel pallet 3, can, according to job site actual needs, consider whether to arrange electric power crane span structure steel cover plate 1.
As shown in Figure 2, for combination slot type steel crane span structure schematic cross-section, the combination slot type steel crane span structure pallet being made up of control cables crane span structure teel pallet 4 and power cable crane span structure teel pallet 3 in the present embodiment is that an overall block plate is made, and does not need the extra process requirements such as welding.As manufacture craft restriction, also can consider that welding or bolt are connected and fixed according to actual conditions in real work.
When control cables and lv power cable lay in crane span structure, low-voltage cable is laid in lv power cable crane span structure pallet 3, and control cables is laid in control cables crane span structure pallet 4, covers control cables bridge cover plate 2.Low-voltage cable bridge cover plate 1 can be according to on-site actual situations, considers whether arrange.
In running, control cables, because of the effect of metal screen layer around, has effectively reduced the electromagnetic interference to its generation in lv power cable running.Lv power cable, in running, because of crane span structure hole slot around, has effectively increased heat radiation, has increased the useful life of cable and has reduced the hidden danger of fire safety evaluating.
Claims (6)
1. a lv power cable and control cables combination crane span structure, comprises power cable crane span structure, it is characterized in that: in power cable crane span structure, be provided with the control cables crane span structure that relatively independent sealing can anti-electromagnetic interference.
2. a kind of lv power cable as claimed in claim 1 and control cables combination crane span structure, is characterized in that: described power cable crane span structure at least comprises power cable crane span structure teel pallet (3).
3. a kind of lv power cable as claimed in claim 2 and control cables combination crane span structure, it is characterized in that: described control cables crane span structure comprises control cables crane span structure teel pallet (4), control cables crane span structure teel pallet (4) is positioned at described power cable crane span structure teel pallet (3) and is fixed on its inwall, and control cables crane span structure steel cover plate (2) is positioned at the top of control cables crane span structure teel pallet (4).
4. a kind of lv power cable as claimed in claim 2 and control cables combination crane span structure, is characterized in that: described control cables crane span structure teel pallet (4) and described power cable crane span structure teel pallet (3) entirety adopt a block plate to make.
5. a kind of lv power cable as claimed in claim 2 and control cables combination crane span structure, is characterized in that: be provided with electric power crane span structure steel cover plate (1) in the top of described power cable crane span structure teel pallet (3).
6. a kind of lv power cable as claimed in claim 2 and control cables combination crane span structure, is characterized in that: around described power cable crane span structure teel pallet (3), have hole slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320798825.3U CN203632143U (en) | 2013-12-05 | 2013-12-05 | Low voltage power cable and control cable combined bridge stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320798825.3U CN203632143U (en) | 2013-12-05 | 2013-12-05 | Low voltage power cable and control cable combined bridge stand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203632143U true CN203632143U (en) | 2014-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320798825.3U Expired - Fee Related CN203632143U (en) | 2013-12-05 | 2013-12-05 | Low voltage power cable and control cable combined bridge stand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203632143U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242185A (en) * | 2014-09-18 | 2014-12-24 | 张家港固耐特围栏系统有限公司 | Split type wire channel of fence |
| CN107299742A (en) * | 2016-04-16 | 2017-10-27 | 上海华电闵行能源有限公司 | Sunk type floor crane span structure between distributed busbar protection electronics |
-
2013
- 2013-12-05 CN CN201320798825.3U patent/CN203632143U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242185A (en) * | 2014-09-18 | 2014-12-24 | 张家港固耐特围栏系统有限公司 | Split type wire channel of fence |
| CN107299742A (en) * | 2016-04-16 | 2017-10-27 | 上海华电闵行能源有限公司 | Sunk type floor crane span structure between distributed busbar protection electronics |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20211205 |