CN201126735Y - Ice-and-snow removing conductor - Google Patents
Ice-and-snow removing conductor Download PDFInfo
- Publication number
- CN201126735Y CN201126735Y CNU2007203069254U CN200720306925U CN201126735Y CN 201126735 Y CN201126735 Y CN 201126735Y CN U2007203069254 U CNU2007203069254 U CN U2007203069254U CN 200720306925 U CN200720306925 U CN 200720306925U CN 201126735 Y CN201126735 Y CN 201126735Y
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- CN
- China
- Prior art keywords
- lead
- snow
- steel core
- conductor
- ice
- 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 - Lifetime
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Abstract
The utility model relates to an overhead lead for removing snow in cold or heavily-snowed area, characterized in that an insulating layer is provided between a lead steel wire and a stranded conductor. When the lead is in normal operation, a steel core bears the pull force, and when the lead is covered by ice or snow, the lead steel core is electrified and power supply of aluminium conductor is cut off; the steel core includes large resistance which is liable to generate heat, accordingly, the steel core can be electrified to rise temperature to automatically thaw out the snow, and after that the steel core current is disconnected to connect the aluminium conducting layer, enabling the lead to normally transmit the power in order to enhance security and operation efficiency of the lead. On top of that, adoption of the lead capable of automatically thawing out the snow can largely lower the cost of laying lead.
Description
Technical field
Utility model relates to the transmission line aerial condutor, especially the deicing overload conductor that uses at cold or heavy icing area.
Background technology
Ice and snow is very serious to transmission line harm, for example because of icing causes the broken string accident, is 110 kilovolts of leads of 2.4 centimetres according to measuring diameter, meet with icing after, diameter often reaches 20-40 centimetre, the accident that as easy as rolling off a log generation lead is pressed down; Even lead is not by disconnected, after temperature raise, the icing thawing came off and easily causes lead to bounce energetically, caused faults such as phase fault, lead collision lightning conducter and cross-arm short circuit.The serious threat electric power netting safe running.All to expend a large amount of human and material resources annual winter at cold or heavy icing area for this reason and prevent ice and snow harm in the circuit.Be to reduce the harm of ice and snow to aerial condutor, people design a lot of ways, and have spent a lot of energy, change its course, cross-arm is changed into by delta arrangement horizontally increase intensity as the line taking road, suitably reduce lead span or the like,
As adopt circuitous circuit to avoid heavy icing area; Increase the tower bar, reduce span, shorten strain insulator length; Shape to lead changes, as the difficult accumulated snow lead snow defence ring type, band wing or embedding strand Curie alloy formula, preceding two kinds of methods, increased the quantity of lead in the circuit or tower bar, increased line cost, a kind of method in back is because production technology is complicated, bring very big trouble to manufacturing, thus can not be real obtain promote.How to reduce icing, reduce conductor cord disconnection and short circuit accident, make on the power network safety operation, become the problem that present overhead transmission line presses for solution.Overweight or the collection snow of icing too much falls the power outage of bar and because accumulated snow causes conductor galloping easily and broken string takes place on the lead, the damaged line phenomenon,
On the transmission line that heavy icing area uses, often because the overweight or collection snow of icing is too much on the lead, and the power outage of bar that takes place to break, cause enormous economic loss, also cause conductor galloping, damaged line easily, China all will expend a large amount of manpowers annual winter, material resources are used for preventing the ice and snow harm of circuit, and the harm that the anti-ice and snow lead that this lead can automatic melting ice can solve ice and snow has great importance to the safe operation of circuit.
The utility model content
The utility model purpose is to overcome above-mentioned prior art deficiency, the deicing snow lead of provide a kind of small investment, technological performance, can effectively remove conductive line surfaces ice and snow, anti-ice-snow is effective.
The utility model purpose realizes, the main improvement is to insulate at the peripheral one deck that coats of lead steel core, and then stranded conductor, when the conductive line surfaces icing, at first stop power supply, utilize the big resistance of steel core, to pass to electric current on the steel core, make the steel core heating, ice-out, thereby overcome the deficiencies in the prior art, realize the utility model purpose.Specifically, utility model deicing snow lead comprises and strengthens steel core and stranded aluminium conductor, it is characterized in that an insulating barrier is arranged between steel core and stranded conductor.
The utility model lead can be various aerial condutors in the prior art, as steel reinforced aluminium conductor (JL/LG1A etc.), and ladle aluminium core aluminum stranded wire (JL/LB1A etc.), expanded conductor (LGJK, LGKK) or the like.The conduction conductor can be circle or molded lines, and material can be an aluminium, also can be aluminium alloy.
Insulating barrier can extrude, also can be wrapped, decide on insulating material.Material can for 105 ℃ PVC plastics, can be for IXPE, can be fluoroplastics or high temperature resistance polyester material, the insulation form can also can be for wrapped for extruding.
Utility model deicing snow lead, owing to strengthening between steel core and stranded conductor, increase by an insulating barrier, when lead normally moves, steel core rises and bears tension, when lead meets with icing or snowberg, the energising of guiding line steel core, and disconnect conductor-powered, because the big relatively resistance of steel core tool, be easy to generate heat, thereby can realize avenging, after the ice dissolution by the steel core heating power being reached automatic melting ice, disconnect the steel core electric current again, connect conductor electricity layer, make lead realize normally carrying the electric work energy, thus the fail safe that has improved lead operational efficiency and lead.Secondly, automatic defrosting snow lead also significantly reduces the conductor laying cost.The utility model lead, manufacturing process is simple, need not to increase frock and mould, has the production efficiency height.
Below in conjunction with two illustrative embodiments, further specify utility model.
Description of drawings
Fig. 1 is a kind of deicing snow of utility model conductor structure schematic diagram.
Fig. 2 is the another kind of deicing snow of a utility model conductor structure schematic diagram.
Embodiment
Embodiment 1: referring to Fig. 1, and utility model deicing snow lead, its structure comprises from inside to outside successively: carrying galvanized strand wires 1, temperature-resistant insulation layer 2, stranded aluminum or aluminum alloy conductor 3.
Embodiment 2: referring to Fig. 2, as embodiment 1, wherein be filled with ointment 4 between twisted wire.
In addition, conductor structure can also be a steel reinforced aluminium conductor, ladle aluminium core aluminum stranded wire, expanded conductor or the like.The conduction conductor can be circle or molded lines.These are all true uses novel protected scope.
Claims (2)
1, deicing snow lead comprises and strengthens steel core and stranded aluminium conductor, it is characterized in that an insulating barrier is arranged between steel core and stranded conductor.
2, according to the described deicing snow of claim 1 lead, it is characterized in that being filled with between stranded conductor ointment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203069254U CN201126735Y (en) | 2007-11-12 | 2007-11-12 | Ice-and-snow removing conductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203069254U CN201126735Y (en) | 2007-11-12 | 2007-11-12 | Ice-and-snow removing conductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201126735Y true CN201126735Y (en) | 2008-10-01 |
Family
ID=40000202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203069254U Expired - Lifetime CN201126735Y (en) | 2007-11-12 | 2007-11-12 | Ice-and-snow removing conductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201126735Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360610A (en) * | 2011-09-14 | 2012-02-22 | 湖南金杯电缆有限公司 | Ice-melting type overhead earth wire |
| CN101714418B (en) * | 2008-10-08 | 2012-06-13 | 特变电工股份有限公司 | Ice-snow melting method by using ice-snow melting wire |
| CN103219084A (en) * | 2013-04-07 | 2013-07-24 | 江苏通光强能输电线科技有限公司 | Anti-corrosion overhead conductor and manufacturing method thereof |
| CN103337295A (en) * | 2013-05-23 | 2013-10-02 | 国家电网公司 | Transmission line to prevent snow and ice disaster |
| CN104637597A (en) * | 2013-11-12 | 2015-05-20 | 天津有序环境科技发展有限公司 | Aluminum-armored solid anti-ice high-voltage bare wire |
| CN106803442A (en) * | 2016-12-15 | 2017-06-06 | 河海大学 | Cold-resistant high-strength pulling-resisting cable |
| CN115488320A (en) * | 2022-09-21 | 2022-12-20 | 中铁建电气化局集团康远新材料有限公司 | Production equipment and method of anti-icing and deicing high-strength high-conductivity copper-steel composite wire |
-
2007
- 2007-11-12 CN CNU2007203069254U patent/CN201126735Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101714418B (en) * | 2008-10-08 | 2012-06-13 | 特变电工股份有限公司 | Ice-snow melting method by using ice-snow melting wire |
| CN102360610A (en) * | 2011-09-14 | 2012-02-22 | 湖南金杯电缆有限公司 | Ice-melting type overhead earth wire |
| CN102360610B (en) * | 2011-09-14 | 2014-02-26 | 湖南金杯电缆有限公司 | Ice-melting type overhead earth wire |
| CN103219084A (en) * | 2013-04-07 | 2013-07-24 | 江苏通光强能输电线科技有限公司 | Anti-corrosion overhead conductor and manufacturing method thereof |
| CN103337295A (en) * | 2013-05-23 | 2013-10-02 | 国家电网公司 | Transmission line to prevent snow and ice disaster |
| CN104637597A (en) * | 2013-11-12 | 2015-05-20 | 天津有序环境科技发展有限公司 | Aluminum-armored solid anti-ice high-voltage bare wire |
| CN106803442A (en) * | 2016-12-15 | 2017-06-06 | 河海大学 | Cold-resistant high-strength pulling-resisting cable |
| CN115488320A (en) * | 2022-09-21 | 2022-12-20 | 中铁建电气化局集团康远新材料有限公司 | Production equipment and method of anti-icing and deicing high-strength high-conductivity copper-steel composite wire |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081001 |