CN203038719U - Medium and high voltage power cable - Google Patents
Medium and high voltage power cable Download PDFInfo
- Publication number
- CN203038719U CN203038719U CN 201220696327 CN201220696327U CN203038719U CN 203038719 U CN203038719 U CN 203038719U CN 201220696327 CN201220696327 CN 201220696327 CN 201220696327 U CN201220696327 U CN 201220696327U CN 203038719 U CN203038719 U CN 203038719U
- Authority
- CN
- China
- Prior art keywords
- power cable
- conductor
- insulation
- insulation screen
- twining package
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model relates to a medium and high voltage power cable, comprising a conductor. The power cable is characterized in that a first insulation shielding layer, an insulation layer, a second insulation shielding layer, a copper-strip shielding layer, a first lapping tape, an inner sheath layer, an armoured layer, a second lapping tape and an oversheath are successively coated on periphery of the conductor from inside to outside. Compared with the prior art, the beneficial effects of the medium and high voltage power cable are that through the above structure, electrical performance and waterproof performance of the cable are lifted; the power cable has excellent high-protection, high-intensity, high heat-insulation and anti-aging performance; structure is reasonable, manufacturing is convenient and service life of the cable is prolonged.
Description
Technical field
The utility model relates to the cable technology field, relates in particular to a kind of mesohigh power cable.
Background technology
Cable is normally by several or at least two every group stranded forming of several groups of leads, mutually insulated between every group of lead, and often be twisted into round a center, whole outside is surrounded by the cover layer of high-insulation.Electric wire mainly comprises bare wire, electromagnetic wire and electrical equipment and electrical insulated electric conductor, power cable, telecommunication cable and optical cable.
The primary structure of mesohigh power cable comprises conductor and oversheath at present, conductor adopts and presses circular stranded conductor, it is more high more good to press coefficient, the general requirement reaches more than 0.9, it is to make conductor stranded closely that conductor adopts the purpose of pressing, and eliminates the twisted wire lug, makes conductor screen surface rounding, avoid producing depression, thus the electric field of uniform insulation inside.In addition, for adapting to different use occasions and reaching corresponding performance, also optionally be provided with conductor screen, insulating barrier, insulation shielding, metallic shield, nonwoven fabrics band between conductor and the oversheath usually.But have higher requirement for power cable in some occasions, need power cable to have high protection, high strength, high heat insulation performance, and existing power cable structure is reaching under the prerequisite of above-mentioned performance requirement, can significantly increase the cost of cable.
The utility model content
The purpose of the utility model embodiment is at the structural shortcoming of prior art, proposes a kind of power cable with high protection, high strength and high heat-proof quality and structure reasonable in design.
In order to reach above-mentioned utility model purpose, a kind of mesohigh power cable that the utility model embodiment proposes is achieved through the following technical solutions:
A kind of mesohigh power cable, comprise conductor, it is characterized in that: described conductor periphery also is coated with first insulation screen, insulating barrier, second insulation screen, copper strips screen, first twining package tape, inner restrictive coating, armour, second twining package tape and oversheath from the inside to the outside successively.
Described first insulation screen and second insulation screen are the semiconductive insulation screen.
Described oversheath is made by irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin.
Described armour is the wire armoring layer.
Described first twining package tape and second twining package tape are mica tape.
Described conductor be many copper single lines constitute press circular stranded conductor.Compared with prior art; the beneficial effects of the utility model are: adopt said structure; promoted electrical property, the block-water performance of cable, and had superior height protection, high strength, high heat insulation and ageing resistace, it is rational in infrastructure, easily manufactured and prolonged useful life of cable.
Description of drawings
By the description of its exemplary embodiment being carried out below in conjunction with accompanying drawing, the above-mentioned feature and advantage of the utility model will become apparent and understand easily.
Fig. 1 is the utility model embodiment overall structure schematic diagram;
Fig. 2 is the generalized section of the utility model embodiment power cable.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail, so that technical staff's of the same trade understanding:
Shown in Fig. 1-2, label is represented respectively:
Circular stranded conductor 1, first insulation screen 2, insulating barrier 3, second insulation screen 4, copper strips screen 5, first twining package tape 6, inner restrictive coating 7, armour 8, second twining package tape 9, oversheath 10.
Shown in Fig. 1-2, a kind of mesohigh power cable is provided in the present embodiment, comprise the circular stranded conductor 1 that presses that many copper single lines constitute, circular stranded conductor 1 outer first insulation screen 2, insulating barrier 3, second insulation screen 4, copper strips screen 5, first twining package tape 6, inner restrictive coating 7, armour 8, second twining package tape 9 and the oversheath 10 of also being coated with successively from the inside to the outside.
Wherein:
Copper strips screen 5 is by forming outside this second insulation screen 4 copper strips is wrapped.
Described first twining package tape 6 is wrapped mica tape outside copper strips screen 5, not only has the effect of heat-insulating flame-retardant, and plays fixedly copper strips, makes it to keep the form of twining, the unlikely effect that gets loose.
Inner restrictive coating 7 is by extruding formation outside first twining package tape 6.
Armour 8 is wire armoring, closely is wrapped in inner restrictive coating 7 peripheries by many steel wires and forms, and plays preventing that cable is subjected to the effect of mechanical damage.
Second twining package tape 9 is wrapped mica tape outside armour 8, not only has the effect of heat-insulating flame-retardant, and plays fixedly steel wire, makes it to keep the form of twining, the unlikely effect that gets loose.
Oversheath 10 is extruded in second twining package tape, 9 outer making by irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin.Irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin has low toxicity, low cigarette, Halogen, characteristics that mechanical strength is high, and its smoke intensity and toxicity are far below common cable, and it hinders right superior performance.Therefore be widely used in the public places such as large-scale, densely populated hotel, grand theater, stadium, hospital, airport, subway, to satisfy the fire protection requirement of this type of place strictness.
More than be elaborated for invention intention of the present utility model and execution mode by embodiment; but the utility model one of ordinary skill in the art be appreciated that; the above embodiment of the utility model only is one of preferred embodiment of the present utility model; be the length restriction; here can not all execution modes of particularize; any enforcement that can embody the utility model claim technical scheme is all in protection range of the present utility model.For example the use for mica tape is not limited only to this among the above embodiment, and first twining package tape 6 and second twining package tape 9 also can only play the fixedly effect of steel wire and copper strips, at this moment can select to adopt the common nonwoven fabric belts of industry etc.
It should be noted that; above content is to further describing that the utility model is done in conjunction with concrete execution mode; can not assert that embodiment of the present utility model only limits to this; under the guidance of above-described embodiment; those skilled in the art can carry out various improvement and distortion on the basis of above-described embodiment, and these improvement or distortion drop in the protection range of the present utility model.
Claims (6)
1. mesohigh power cable, comprise conductor, it is characterized in that: described conductor periphery also is coated with first insulation screen, insulating barrier, second insulation screen, copper strips screen, first twining package tape, inner restrictive coating, armour, second twining package tape and oversheath from the inside to the outside successively.
2. a kind of mesohigh power cable according to claim 2, it is characterized in that: described first insulation screen and second insulation screen are the semiconductive insulation screen.
3. a kind of mesohigh power cable according to claim 1, it is characterized in that: described oversheath is made by irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin.
4. a kind of mesohigh power cable according to claim 1, it is characterized in that: described armour is the wire armoring layer.
5. a kind of mesohigh power cable according to claim 1, it is characterized in that: described first twining package tape and second twining package tape are mica tape.
6. according to any described a kind of mesohigh power cable of claim 1-5, it is characterized in that: described conductor be many copper single lines constitute press circular stranded conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220696327 CN203038719U (en) | 2012-12-14 | 2012-12-14 | Medium and high voltage power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220696327 CN203038719U (en) | 2012-12-14 | 2012-12-14 | Medium and high voltage power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203038719U true CN203038719U (en) | 2013-07-03 |
Family
ID=48690817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220696327 Expired - Fee Related CN203038719U (en) | 2012-12-14 | 2012-12-14 | Medium and high voltage power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203038719U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103854741A (en) * | 2014-02-24 | 2014-06-11 | 安徽卓越电缆有限公司 | Direct-current traction compensation cable |
| CN104464903A (en) * | 2014-12-12 | 2015-03-25 | 宿州永通电缆有限公司 | Cable for high-voltage trunk line |
| CN109215854A (en) * | 2018-09-07 | 2019-01-15 | 河南讯达电缆有限公司 | Super-pressure flexible direct current fireproof cable |
-
2012
- 2012-12-14 CN CN 201220696327 patent/CN203038719U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103854741A (en) * | 2014-02-24 | 2014-06-11 | 安徽卓越电缆有限公司 | Direct-current traction compensation cable |
| CN104464903A (en) * | 2014-12-12 | 2015-03-25 | 宿州永通电缆有限公司 | Cable for high-voltage trunk line |
| CN109215854A (en) * | 2018-09-07 | 2019-01-15 | 河南讯达电缆有限公司 | Super-pressure flexible direct current fireproof cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203276947U (en) | Environmentally friendly low-smoke halogen-free flame-retardant fireproof medium-voltage power cable | |
| CN202905278U (en) | Novel middle-voltage fireproof power cable | |
| CN104167251A (en) | High-voltage connecting cable provided with ultra-soft aluminum conductor and used in electric automobile and manufacturing method of high-voltage connecting cable | |
| CN202258530U (en) | Electric railway 27.5kV single-phase alternating current power cable | |
| CN203038719U (en) | Medium and high voltage power cable | |
| CN202887839U (en) | Halogen-free low-smoke flame-retardant medium-voltage frequency changer cable | |
| CN202615912U (en) | Variable frequency cable used for 690V vessel electric propulsion | |
| CN206312615U (en) | The compound naval vessel medium-pressure power cable of one kind control | |
| CN102394140A (en) | External optoelectronic composite medium voltage cable | |
| CN203085224U (en) | Low-temperature-resistant cable | |
| RU2338279C2 (en) | Electric communication cable | |
| RU148772U1 (en) | CABLE OF THE INCREASED INTERFERENCE PROTECTION | |
| CN202662373U (en) | Movable medium-voltage fireproof power cable | |
| CN202720964U (en) | Anti-explosion telephone cable for nuclear island | |
| CN206401075U (en) | The compound naval vessel medium-pressure power cable of control | |
| CN202134267U (en) | High temperature resistant and high pressure resistant frequency conversion cable | |
| CN104733108A (en) | Variable frequency cable | |
| CN103996450A (en) | Low-smoke nontoxic flame-retardant control cable for communication base station | |
| CN203596187U (en) | Telecommunication composite cable | |
| CN203931636U (en) | Low-smoke non-halogen flame-retardant thin wall type telecommunication cable for a kind of naval vessel | |
| CN201430004Y (en) | Special-type monitoring cable used for digital transformer substation | |
| CN103500603A (en) | Long-distance communication composite cable | |
| CN203118558U (en) | Cable used for power measurement | |
| CN202454324U (en) | External photoelectric composite medium-voltage cable | |
| CN217788040U (en) | Explosion-proof antimagnetic fireproof cable for flexible machine room power supply |
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: 20130703 Termination date: 20191214 |