CN201174274Y - Stabilizing soft conductor flame-retardant power cable - Google Patents
Stabilizing soft conductor flame-retardant power cable Download PDFInfo
- Publication number
- CN201174274Y CN201174274Y CNU2008201514731U CN200820151473U CN201174274Y CN 201174274 Y CN201174274 Y CN 201174274Y CN U2008201514731 U CNU2008201514731 U CN U2008201514731U CN 200820151473 U CN200820151473 U CN 200820151473U CN 201174274 Y CN201174274 Y CN 201174274Y
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- China
- Prior art keywords
- cable
- conductor
- power cable
- fire
- retardant
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- 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.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
Abstract
The utility model discloses a stable flexible conductor antiflaming power cable, which comprises a cable conductor, an outer sheath coated on the outer surface of the cable conductor and an insulating layer positioned between the outer surface of the cable conductor and the inner surface of the outer sheath, wherein the cable conductor consists of a plurality of thin flexible round copper wires or braided wires which are intertwisted layer by layer in positive direction and negative direction, and is wrapped inside the insulating layer. Compared with the prior art, the stable flexible conductor antiflaming power cable has the advantages that the cable is flexible and easy to bend, install and lay down, and has easily selected application place; withstand voltage level is increased, and accident rate caused by voltage overload is greatly reduced; self mechanical protection capability of product is increased, and accident rate caused by mechanical damage is reduced; and because self electromechanical protection capability of product is increased, an application system in which the cable exists has better normal running status.
Description
Technical field
The utility model relates to a kind of power cable, is specifically related to a kind ofly to be used to communicate by letter, the fire-retardant power cable of stable type flexible conductor in field such as traffic, building, Aero-Space, exploration.
Background technology
The fire-retardant power cable of copper core polyvinyl chloride insulation sheath not only has good electrical insulation properties and heat resistance, and installs to lay and not limited by drop, so developed rapidly in recent years and use.Traditional power cable structure conductor is by stranded the forming of middle thick copper lines of few radical, again at conductor outer wrapping one deck insulating case.The shortcoming of this kind structural cable is that conductor is not flexible, so that whole cable is not flexible, brings difficulty thereby lay for the installation of cable, has limited the scope of application of cable; Cable has only one deck insulating sleeve again, and the withstand voltage level of cable is limited, under the damage power effect of external mechanical force, is easy to be damaged, and its self-protection ability is relatively poor, and the fire resistance of cable itself is also strong inadequately.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiencies in the prior art, the fire-retardant power electricity of stable type flexible conductor that provides a kind of softness, flexible, easy installation to lay, and its conductor structure is stable, and cable bears strong than weight power, and is fire-retardant and withstand voltage properties good.
The technical scheme that realizes above-mentioned purpose is: the fire-retardant power cable of a kind of stable type flexible conductor, and comprise cable conductor, be wrapped in the oversheath of cable conductor outer surface, also comprise a insulating barrier between cable conductor outer surface and oversheath inner surface; Described cable conductor is made of in the stranded mode of both forward and reverse directions successively many soft circular copper wires or some strands, and it is wrapped in the insulating barrier.
The above-mentioned fire-retardant power cable of stable type flexible conductor, wherein, described every strand is by stranded the forming of several soft circular copper wires.
The above-mentioned fire-retardant power cable of stable type flexible conductor, wherein, described insulating layer material is high flame retardant polyvinyl chloride or high flame retardant heat-resistant polyvinyl chloride, the material of described oversheath is a high flame retardant polyvinyl chloride.
The fire-retardant power cable of stable type flexible conductor of the present utility model is compared with the power cable of prior art and is had the following advantages:
1. cable softness, flexible, easy installation are laid, and the field of employment is easily selected;
2. withstand voltage level improves, and the accident rate that causes owing to voltage overload significantly reduces;
3. product self mechanical protection ability is strong, can reduce because the rate of breakdown of mechanical damage;
4. because the self-dynamo-electric protective capacities of product improves, cause the normal operation conditions of the residing application system of cable better.
Description of drawings
Fig. 1 is the sectional view of the fire-retardant power cable of stable type flexible conductor of the present utility model.
Embodiment
In order to understand the technical solution of the utility model better, below by embodiment particularly and be described in detail in conjunction with the accompanying drawings:
See also Fig. 1, the fire-retardant power cable of stable type flexible conductor of the present utility model comprises cable conductor 1, insulating barrier 2 and oversheath 3, wherein,
The material of insulating barrier 2 comes to be high flame retardant polyvinyl chloride or high flame retardant heat-resistant polyvinyl chloride, and it is between cable conductor 1 outer surface and oversheath 3 inner surfaces;
When the sectional area of cable hour, cable conductor 1 can directly adopt many soft circular copper wires to carry out successively the stranded mode of both forward and reverse directions constitutes; When the sectional area of cable is big, can earlier several soft circular copper wires be twisted into a strand, and then some strands are constituted cable conductor 1 in the stranded mode of both forward and reverse directions successively; Cause the softness of cable conductor 1 to be extended, the pliability of sending a telegraph cable improves greatly, and cable conductor 1 Stability Analysis of Structures of this structure is born than not yielding after the weight power cable, and fire-retardant and withstand voltage properties improves;
The material of oversheath 3 is a high flame retardant polyvinyl chloride.
The fire-retardant power cable of stable type flexible conductor of the present utility model becomes insulation, the double-deck system of sheath with the single insulating layer (individual layer system) of original cable, make the general flame retardant level of original cable mention the high flame retardant level, can improve cable proof voltage level and mechanical protection ability again.The Stability Analysis of Structures of cable conductor, cable can be born than weight power, if the material of the insulating barrier 2 of cable adopts the high flame retardant heat-resistant polyvinyl chloride, the operation working temperature that can make cable is up to 90 ℃, the ampacity of cable also can strengthen, and the fire-retardant and withstand voltage properties of cable is greatly improved.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.
Claims (3)
1. the fire-retardant power cable of stable type flexible conductor comprises cable conductor, is wrapped in the outer oversheath of cable conductor, it is characterized in that,
Also comprise a insulating barrier between cable conductor outer surface and oversheath inner surface;
Described cable conductor is made of in the stranded mode of both forward and reverse directions successively many soft circular copper wires or some strands, and it is wrapped in the insulating barrier.
2. the fire-retardant power cable of stable type flexible conductor according to claim 1 is characterized in that, described every strand is by stranded the forming of several soft circular copper wires.
3. the fire-retardant power cable of stable type flexible conductor according to claim 1 is characterized in that, described insulating layer material is high flame retardant polyvinyl chloride or high flame retardant heat-resistant polyvinyl chloride, and the material of described oversheath is a high flame retardant polyvinyl chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201514731U CN201174274Y (en) | 2008-07-31 | 2008-07-31 | Stabilizing soft conductor flame-retardant power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201514731U CN201174274Y (en) | 2008-07-31 | 2008-07-31 | Stabilizing soft conductor flame-retardant power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201174274Y true CN201174274Y (en) | 2008-12-31 |
Family
ID=40201399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201514731U Expired - Fee Related CN201174274Y (en) | 2008-07-31 | 2008-07-31 | Stabilizing soft conductor flame-retardant power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201174274Y (en) |
-
2008
- 2008-07-31 CN CNU2008201514731U patent/CN201174274Y/en not_active Expired - Fee Related
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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: 20081231 Termination date: 20160731 |