CN104779003A - Heat insulation type wire insulation shield - Google Patents
Heat insulation type wire insulation shield Download PDFInfo
- Publication number
- CN104779003A CN104779003A CN201510211209.7A CN201510211209A CN104779003A CN 104779003 A CN104779003 A CN 104779003A CN 201510211209 A CN201510211209 A CN 201510211209A CN 104779003 A CN104779003 A CN 104779003A
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- layer
- insulation
- heat
- mask
- insulation layer
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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
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Abstract
The invention discloses a heat insulation type wire insulation shield. The shield is of a double-layer shielding structure, the inner layer is a heat insulation layer, and the outer layer is an insulation layer; the inner layer and the outer layer are connected through a connecting block; the connecting block is a heat-resistant flame-retardant connecting block; installation chutes are formed in the two ends of the shield and connected with other shields in a matched mode; lifting holes are formed in the insulation layer and the heat insulation layer; the heat insulation layer is made of a heat insulation flame-retardant material; an anti-skidding pad is arranged on the inner side of the heat insulation layer; the connecting block is arranged on the outer side of the heat insulation layer and a sliding block is arranged at the upper end of the connecting block. The heat insulation type wire insulation shield can be used for achieving the wire insulation shielding function in the direct current grounding electrode circuit hot-line work process, the influences of the high temperature of wires on the insulation material and operation personnel are effectively eliminated, and the insulation protective effect is achieved.
Description
Technical field
The present invention relates to a kind of insulated shielding cover, particularly a kind of heat insulation type wire insulation mask.
Background technology
Direct current grounding pole circuit is the important component part in DC transmission system, the circulation of unsymmetrical current when system power when it mainly assume responsibility for DC transmission system monopolar operation and bipolar operation.During monopolar operation, its electric current flowed through is up to kilo-ampere, and therefore ground electrode circuit must adopt heat-resisting wire as carrier.The maximum working voltage of ground electrode circuit is no more than 10kV simultaneously, similar with distribution line.Direct current grounding pole circuit overvoltage lower, generally can not more than 35kV, press the consideration of 35kV system during the design of its tower head gap, tower body structure is according to 220kV line design.Ground electrode circuit wire needs by larger current when considering monopolar operation, therefore circuit generally adopts heat-resisting wire.Therefore ground electrode circuit live line working mode can with reference to the feature of 220kV circuit and distribution line live line working, the impact on live line working simultaneously when considering heat-resisting wire hot operation.
Distribution line live working need to the electrified body in working region and and earth electrode carry out insulation and cover, and ground electrode circuit needs to consider that high temperature wire covers the impact of apparatus to insulation, plain conductor insulated shielding cover cannot meet the demand of ground electrode circuit live line working.
Summary of the invention
The present invention is the above-mentioned deficiency in order to make up prior art, provides a kind of heat insulation type wire insulation mask, and the wire insulation that can be used in direct current grounding pole line live-line work process covers.
For achieving the above object, the technical solution used in the present invention is: a kind of heat insulation type wire insulation mask, and described mask adopts double-deck masking structure, and internal layer is thermal insulation layer, and skin is insulating barrier; Contiguous block is adopted to be connected between described internal layer with described skin; Described contiguous block is heat-proof combustion-resistant contiguous block.
The two ends of described mask are equipped with installation chute, and described chute and other masks are connected.
Described insulating barrier and described thermal insulation layer all arrange lifting hole, and aperture and the insulating bar bar footpath of described lifting hole adapt.
Described thermal insulation layer adopts heat-isolating flame retardant material to make, and is hollow circuit cylinder body structure, arranges wire posting port below thermal insulation layer.
Inside described thermal insulation layer, slipmat is set; Described contiguous block is arranged at outside thermal insulation layer, and the upper end of described contiguous block arranges slide block.
Described insulating barrier adopts heat resistant type insulating material to make, and is hollow circuit cylinder body structure, and its internal diameter comparatively thermal insulation layer increases more than 10cm, and arrange slide rail inside described insulating barrier, described slide rail is connected with the slide block of contiguous block.
Described insulating barrier bottom arranges insulation and extends lip.
Mask of the present invention adopts double-deck masking structure, inner layer heat-insulation layer is connected with adopting contiguous block between outer insulation, the air gap of more than 10cm is produced between ectonexine, thus adopt air gap as main thermal insulation layer, thermal insulation layer is as auxiliary heat insulation, both ensure that effect of heat insulation, alleviate again the weight of mask; Insulating barrier and thermal insulation layer all arrange lifting hole, aperture and the insulating bar bar footpath of lifting hole adapt, when being convenient to live line working, utilize insulating bar to operate double-deck mask, the installation chute at mask two ends can realize with other masks in mating connection; Slipmat can match with the wire of inserting and rub, reinforce stabilization; Inside insulating barrier, slide rail is set, contiguous block upper end outside thermal insulation layer arranges slide block, slide rail and slide block with the use of, can realize being slidably connected, be convenient to two-layer between merging be separated, adopt the double-deck mask design of separate type like this, make whole mask simple installation, light structure, every layer insulating also can be used alone simultaneously.
The wire insulation that the present invention can be used in direct current grounding pole line live-line work process covers, and has effectively completely cut off the impact of wire high-temperature on insulating material and operating personnel, has served the effect of insulation protection.
Accompanying drawing explanation
Fig. 1 is the sectional view of thermal insulation layer of the present invention.
Fig. 2 is the front view of thermal insulation layer of the present invention.
Fig. 3 is the sectional view of insulating barrier of the present invention.
Fig. 4 is the front view of insulating barrier of the present invention.
Specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
Embodiment one
As shown in Figures 1 to 4, a kind of heat insulation type wire insulation mask, adopts double-deck masking structure, is made up of thermal insulation layer 1 and insulating barrier 6 two parts.Described thermal insulation layer adopts heat stable resin to process, and mainly comprises the parts such as thermal insulation layer 1, slipmat 2, heat-resisting contiguous block 3 and lifting hole 4.Inside mask, the right and left is provided with slipmat 2, in order to prevent mask install after slide arbitrarily.There is lifting hole outside mask, do the use dismantled for hot-line work insulating operating rod.Heat-resisting contiguous block 3 is the use of the connection as thermal insulation layer 1 and insulating barrier 6.Insulating barrier 6 is processed by insulating resin, mainly comprises the parts such as insulating barrier 6, lifting hole, slide rail 7, insulation extension lip 8.Slide rail 7 is used to be connected and fixed two masks, and the slide block 5 of the heat-resisting contiguous block 3 on thermal insulation layer 1 can slip in slide rail 7.It is protection lower opening that insulation extends lip 8, avoids personnel or instrument to contact wire by mistake.
The longitudinal direction of described thermal insulation layer 1 breaks cross section in the arc-shaped under shed; The longitudinal direction of the insulating barrier 6 told breaks cross section in the arc-shaped under shed.Described partiting thermal insulation heat-resisting contiguous block 3 be located at three places before, during and after outside mask.Midline inside insulating barrier is located at by described slide rail.The lifting hole of described thermal insulation layer and described insulating barrier is all distributed in the rear and front end of mask.
Carry out wire insulation when covering, using method is as follows: thermal insulation layer is placed on the correct position needing to cover wire by effect librarian use insulating bar by lifting hole 3.Install firmly, continue to use insulating bar that insulating barrier is placed on thermal insulation layer side, slide rail is alignd with heat-resisting contiguous block, then contiguous block is slipped into slideway, stop after insulating barrier and thermal insulation layer justify align.After live line working terminates, operating personnel uses insulating bar to take off mask according to reverse order.
Embodiment two
A kind of heat insulation type wire insulation mask, mask adopts double-deck masking structure, and internal layer is thermal insulation layer 1, and skin is insulating barrier 6; Contiguous block 3 is adopted to be connected between internal layer with skin; Contiguous block is heat-proof combustion-resistant contiguous block; The two ends of mask are equipped with installation chute, and chute and other masks are connected; Insulating barrier and thermal insulation layer all arrange lifting hole 4, and aperture and the insulating bar bar footpath of lifting hole adapt; Thermal insulation layer adopts heat-isolating flame retardant material to make, and is hollow circuit cylinder body structure, arranges wire posting port below thermal insulation layer; Slipmat 2 is set inside thermal insulation layer; Contiguous block is arranged at outside thermal insulation layer, and the upper end of contiguous block arranges slide block 5; Insulating barrier adopts heat resistant type insulating material to make, and is hollow circuit cylinder body structure, and its internal diameter comparatively thermal insulation layer increases more than 10cm, and arrange slide rail 7 inside insulating barrier, slide rail is connected with the slide block of contiguous block; Insulating barrier bottom arranges insulation and extends lip 8.
Be with the difference of embodiment one: in order to strengthen applicability and the reliability of mask, for avoiding the shortcoming of overcast and rainy wet weather poor insulativity, waterproofing design can be taked in cover body periphery, namely at the arranged outside watertight composition of insulating barrier, watertight composition main material is high density polyethylene, can take multi-layer compound structure, effectively prevents the infiltration phenomenon that polyolefin film nucleus causes, mask can be made to work in rainy weather also can normally use, considerably increase its insulation effect.
Watertight composition can be pasted on insulating barrier by adhesive, adhesive with EVA resin for main material, coordinate terpene resin, Petropols, rosin glyceride, microwax, paraffin, antioxidant 1010 and dibutyl phthalate through polymerization melting, finally insert medicinal talcum powder and make; Both the abundant laminating of watertight composition and insulating barrier can have been realized, the multi-layer compound structure of watertight composition can be made again to carry out reasonable combination, improve integral waterproofing and the stability of composite construction, improve its follow-up processability to a great extent, effectively reduce production process and cost.
Embodiment three
A kind of heat insulation type wire insulation mask, be with embodiment one, two difference, on the basis on embodiment one surface of insulating layer or embodiment two watertight composition surface, coat can be set at outermost surface, namely use coating material uniform fold in outer surface, coating material mainly comprises polypropylene coating material, effectively can improve the richness of mask outer surface, glossiness, resistance to wear and ageing resistance, makes it smooth attractive in appearance.
Embodiment four
A kind of heat insulation type wire insulation mask, is with above-described embodiment difference, in the air gap of insulating barrier and thermal insulation layer, arranges electroscopic device.In concrete enforcement, in air gap near lifting hole place, electric-field sensor can be installed, the field intensity change of induction inboard wire, and then identification current in wire size and changing value, then by Signal transmissions in being arranged at the processor on outermost layer, carry out identifying and voice broadcast; Lifting hole place can arrange perforate, and the connecting line being convenient to electric-field sensor and processor passes through; Processor comprises single-chip microcomputer, speech chip, amplifying circuit and loud speaker; Single-chip microcomputer stores the different output states under normal current change, sensor signal value is identified, carry out differentiating according to discre value size and determine that speech chip signal enters loud speaker through amplifying circuit, reports with different output frequency triggering voice chip; Speech chip comprises two kinds of report states, and when microprocessor detect current value is in normal range (NR), intermittent can report " normal operation ", interval time can be 1 minute; When detecting current value and being in non-normal range, the fault of instant triggering voice chip reports state, reports " Failure risk please checks immediately ", thus realizes the real-time electrical verification monitoring to operation wire.
Claims (7)
1. a heat insulation type wire insulation mask, is characterized in that: described mask adopts double-deck masking structure, and internal layer is thermal insulation layer, and skin is insulating barrier; Contiguous block is adopted to be connected between described internal layer with described skin; Described contiguous block is heat-proof combustion-resistant contiguous block.
2. heat insulation type wire insulation mask as claimed in claim 1, it is characterized in that: the two ends of described mask are equipped with installation chute, described chute and other masks are connected.
3. heat insulation type wire insulation mask as claimed in claim 1 or 2, it is characterized in that: described insulating barrier and described thermal insulation layer all arrange lifting hole, aperture and the insulating bar bar footpath of described lifting hole adapt.
4. heat insulation type wire insulation mask as claimed in claim 3, is characterized in that: described thermal insulation layer adopts heat-isolating flame retardant material to make, and is hollow circuit cylinder body structure, arranges wire posting port below thermal insulation layer.
5. heat insulation type wire insulation mask as claimed in claim 4, is characterized in that: arrange slipmat inside described thermal insulation layer; Described contiguous block is arranged at outside thermal insulation layer, and the upper end of described contiguous block arranges slide block.
6. heat insulation type wire insulation mask as claimed in claim 3, it is characterized in that: described insulating barrier adopts heat resistant type insulating material to make, for hollow circuit cylinder body structure, its internal diameter comparatively thermal insulation layer increases more than 10cm, arrange slide rail inside described insulating barrier, described slide rail is connected with the slide block of contiguous block.
7. heat insulation type wire insulation mask as claimed in claim 3, is characterized in that: described insulating barrier bottom arranges insulation and extends lip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510211209.7A CN104779003B (en) | 2015-04-29 | 2015-04-29 | A kind of heat insulation type wire insulation mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510211209.7A CN104779003B (en) | 2015-04-29 | 2015-04-29 | A kind of heat insulation type wire insulation mask |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104779003A true CN104779003A (en) | 2015-07-15 |
| CN104779003B CN104779003B (en) | 2017-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510211209.7A Active CN104779003B (en) | 2015-04-29 | 2015-04-29 | A kind of heat insulation type wire insulation mask |
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| CN (1) | CN104779003B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356367A (en) * | 2015-11-26 | 2016-02-24 | 国网河南省电力公司检修公司 | Electric power heat insulation type insulator insulation shielding cover |
| CN105702365A (en) * | 2016-04-29 | 2016-06-22 | 宜昌红旗中泰电缆有限公司 | Overload warning power cable |
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| JP2002325328A (en) * | 2001-04-25 | 2002-11-08 | Yazaki Corp | Shield processing structure and shielding treatment method of multi-conductor shielding wire |
| CN201601417U (en) * | 2010-03-04 | 2010-10-06 | 山东电力研究院 | Special wire shield for high-voltage live working |
| CN202308915U (en) * | 2011-11-10 | 2012-07-04 | 广东电网公司东莞供电局 | Telescopic lead shielding cover used for live-wire work on power distribution network |
| CN102761078A (en) * | 2012-07-20 | 2012-10-31 | 江苏省电力公司南京供电公司 | Live-working method of high-temperature wires of power transmission lines |
| CN102904192A (en) * | 2012-10-12 | 2013-01-30 | 江苏省电力公司南京供电公司 | Heat shield and method for carrying out live working on heat-resistant wires by using same |
| CN203553729U (en) * | 2013-11-25 | 2014-04-16 | 国家电网公司 | Wire insulation shielding cover |
| CN203883369U (en) * | 2014-05-23 | 2014-10-15 | 国家电网公司 | Cross-arm insulator integrated shield cover for hot-line work |
| CN204068050U (en) * | 2014-09-11 | 2014-12-31 | 国家电网公司 | Electrical lead live line working insulated shielding cover |
| CN204695821U (en) * | 2015-04-29 | 2015-10-07 | 国家电网公司 | A kind of heat insulation type wire insulation mask |
-
2015
- 2015-04-29 CN CN201510211209.7A patent/CN104779003B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002325328A (en) * | 2001-04-25 | 2002-11-08 | Yazaki Corp | Shield processing structure and shielding treatment method of multi-conductor shielding wire |
| CN201601417U (en) * | 2010-03-04 | 2010-10-06 | 山东电力研究院 | Special wire shield for high-voltage live working |
| CN202308915U (en) * | 2011-11-10 | 2012-07-04 | 广东电网公司东莞供电局 | Telescopic lead shielding cover used for live-wire work on power distribution network |
| CN102761078A (en) * | 2012-07-20 | 2012-10-31 | 江苏省电力公司南京供电公司 | Live-working method of high-temperature wires of power transmission lines |
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| CN203553729U (en) * | 2013-11-25 | 2014-04-16 | 国家电网公司 | Wire insulation shielding cover |
| CN203883369U (en) * | 2014-05-23 | 2014-10-15 | 国家电网公司 | Cross-arm insulator integrated shield cover for hot-line work |
| CN204068050U (en) * | 2014-09-11 | 2014-12-31 | 国家电网公司 | Electrical lead live line working insulated shielding cover |
| CN204695821U (en) * | 2015-04-29 | 2015-10-07 | 国家电网公司 | A kind of heat insulation type wire insulation mask |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356367A (en) * | 2015-11-26 | 2016-02-24 | 国网河南省电力公司检修公司 | Electric power heat insulation type insulator insulation shielding cover |
| CN105356367B (en) * | 2015-11-26 | 2018-04-06 | 国网河南省电力公司检修公司 | A kind of electric power heat insulation type insulator dielectric mask |
| CN105702365A (en) * | 2016-04-29 | 2016-06-22 | 宜昌红旗中泰电缆有限公司 | Overload warning power cable |
| CN105702365B (en) * | 2016-04-29 | 2017-05-24 | 宜昌红旗中泰电缆有限公司 | Overload warning power cable |
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| Publication number | Publication date |
|---|---|
| CN104779003B (en) | 2017-03-08 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170106 Address after: 455000 Huaihe Road, Zhongyuan District, Henan, China, No. 40, No. Applicant after: MAINTENANCE COMPANY OF STATE GRID HENAN ELECTRIC POWER COMPANY Applicant after: China Electric Power Research Institute Applicant after: State Power Networks Co Address before: 450006 Huaihe Road, Zhongyuan District, Henan, China, No. 40, No. Applicant before: MAINTENANCE COMPANY OF STATE GRID HENAN ELECTRIC POWER COMPANY Applicant before: China Electric Power Research Institute |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |