CN103545752A - Soft insulation pull rod for 800kV ultrahigh-voltage line and manufacturing method of insulation rope - Google Patents

Soft insulation pull rod for 800kV ultrahigh-voltage line and manufacturing method of insulation rope Download PDF

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Publication number
CN103545752A
CN103545752A CN201310484078.0A CN201310484078A CN103545752A CN 103545752 A CN103545752 A CN 103545752A CN 201310484078 A CN201310484078 A CN 201310484078A CN 103545752 A CN103545752 A CN 103545752A
Authority
CN
China
Prior art keywords
voltage line
aramid yarns
insulation
insulating cord
high voltage
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.)
Pending
Application number
CN201310484078.0A
Other languages
Chinese (zh)
Inventor
姜国庆
刘红伟
杨朝锋
张建辉
陶留海
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Overhauling Co Of Henan Electric Power Co
State Grid Corp of China SGCC
Original Assignee
Overhauling Co Of Henan Electric Power Co
State Grid Corp of China SGCC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Overhauling Co Of Henan Electric Power Co, State Grid Corp of China SGCC filed Critical Overhauling Co Of Henan Electric Power Co
Priority to CN201310484078.0A priority Critical patent/CN103545752A/en
Publication of CN103545752A publication Critical patent/CN103545752A/en
Pending legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D07ROPES; CABLES OTHER THAN ELECTRIC
    • D07BROPES OR CABLES IN GENERAL
    • D07B1/00Constructional features of ropes or cables
    • D07B1/18Grommets
    • DTEXTILES; PAPER
    • D07ROPES; CABLES OTHER THAN ELECTRIC
    • D07BROPES OR CABLES IN GENERAL
    • D07B1/00Constructional features of ropes or cables
    • D07B1/14Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
    • D07B1/145Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising elements for indicating or detecting the rope or cable status
    • DTEXTILES; PAPER
    • D07ROPES; CABLES OTHER THAN ELECTRIC
    • D07BROPES OR CABLES IN GENERAL
    • D07B2205/00Rope or cable materials
    • D07B2205/20Organic high polymers
    • D07B2205/2046Polyamides, e.g. nylons
    • D07B2205/205Aramides

Abstract

The invention discloses a soft insulation pull rod for an 800kV ultrahigh-voltage line and a manufacturing method of an insulation rope. The soft insulation pull rod comprises the insulation rope. Two ends of the insulation rope form loops by fixing clips, and the insulation rope is knitted and processed by high-strength aramid yarns. The insulation rope is sleeved by a protective jacket. The manufacturing method of the insulation rope includes: using twisted aramid yarns 1500D (tubular) to manufacture a plurality of frame-shaped aramid yarns, dyeing and performing moisture proof treatment on the frame-shaped aramid yarns, drying the aramid yarns, placing the aramid yarns into an oven to dry at the set temperature, manually manufacturing a plurality of small tubes by the frame-shaped aramid yarns and making into required diameter and length by a weaving and knitting mechanism, tightly wrapping aramid yarns outside, and placing finished products into the oven with set temperature to dry. The insulation rope is made of the ultrahigh-strength aramid yarns, is compact, durable, high in carrying force, convenient to transport and low in using cost and can be wound.

Description

The preparation method of 800kV extra high voltage line soft insulating pull-rod and insulating cord
 
technical field:
The present invention relates to a kind of power circuit maintenance tool, particularly relate to the preparation method of a kind of 800kV extra high voltage line soft insulating pull-rod and insulating cord.
background technology:
China's electrical distribution is uneven, need long distance powedr transmission, in order to reduce the wastage and to improve power transmission efficiency, adopt more and more ultra high voltage and super UHV transmission, correspondingly the diameter of power transmission line and ground wire is also increasing, its weight is also very large, when replacing linear insulator string under electrification, need to be by lifting wire, the intensity of existing insulation pull-rod is low and structural design is unreasonable, easily occurs that insulation pull-rod damages under large weight pulling force, and hidden danger causes the accident, also exist in addition effort time-consuming, even have the deficiency of personal injury.
summary of the invention:
Technical problem to be solved by this invention is: overcome the deficiencies in the prior art, provide a kind of reasonable in design, intensity is high, bearing capacity is large and the 800kV extra high voltage line soft insulating pull-rod of long service life, provide simultaneously a kind of simple and practical, weave effect good and the preparation method of the insulating cord easily implemented.
Technical scheme of the present invention is: a kind of 800kV extra high voltage line soft insulating pull-rod, contain insulating cord, and described insulating cord two ends form annular cover by fixed card respectively, and described insulating cord is processed by the braiding of high strength aramid fiber yarn.
On described insulating cord, be set with protective sleeve.Described annular puts and is provided with pressure sensor, and described pressure sensor is connected with alarm by controller.Described fixed card is hood type structure, clip and connecting bolt, consists of; The end of described insulating cord is equipped with knot, prevents that insulating cord from deviating from from fixed card.
The preparation method of insulating cord in described 800kV extra high voltage line soft insulating pull-rod, comprises the following steps:
(1) choose the aramid fiber yarn (tubular) of twisting 1500D, and make into some shape aramid fiber yarns of rectifying by hand, then dye and moistureproof processing;
(2) aramid fiber yarn is dried, then put baking oven into and dry;
(3) the shape aramid fiber yarn of rectifying of drying is made into several little tubulars by hand, then with cover, knits establishment mechanism and make needed diameter and length, last parcel one deck aramid line tightly outside, formation finished product;
(4) finished product is put in baking oven and again dries.
The percentage elongation of described finished product is less than 2%-3%.Described finished product is carried out work frequency dry flash voltage test and under high humility, exchanges Leakage Current test.
The invention has the beneficial effects as follows:
1, insulating cord of the present invention is made by Extra High Strength insulated wire (aramid fiber yarn), and durable, bearing capacity is strong, and its two ends form annular cover by fixed card, are convenient to be connected with other hanging mechanisms.
2, the present invention has the feature, particularly its soft rope such as lightweight, simple in structure, simple to operate and can be wound around, and is convenient to transportation, has both saved the activity duration, has reduced again personnel's labour intensity.
3, the present invention is without intermetallic metal joint, is more suitable for live line working that tower window size the is little assurance to insulation effective length, can optimize better extra-high voltage iron tower design.
4, on insulating cord of the present invention, be provided with protective jacket, increased its useful life, in addition, the end of insulating cord is provided with knot, prevents from throwing off, and improves the fail safe of using.
5, insulating cord aramid fiber yarn of the present invention is through dyeing, dry, weave, drying, and closely, intensity is high in its braiding, and skin parcel one deck aramid line, and intensity is higher.
6, the present invention is reasonable in design, intensity is high, bearing capacity is large and long service life, and it is applied widely, is especially applied to the replacing insulator of 800kV extra high voltage direct current transmission line, is easy to promotion and implementation, has good economic benefit.
accompanying drawing explanation:
Fig. 1 is the structural representation of 800kV extra high voltage line soft insulating pull-rod.
embodiment:
Embodiment: referring to Fig. 1, in figure, 1-protective jacket, 2-insulating cord, 3-fixed card.
800kV extra high voltage line soft insulating pull-rod contains insulating cord 2, and wherein: insulating cord 2 two ends form annular cover by fixed card 3 respectively, insulating cord 2 is processed by the braiding of high strength aramid fiber yarn.
On insulating cord 2, be set with protective sleeve 1.Annular puts and is provided with pressure sensor, and pressure sensor is connected with alarm by controller, and pulling force reaches setting alarm, prevents from breaking.
Fixed card 3 is hood type structure, clip and connecting bolt, consists of; The end of insulating cord 2 is equipped with knot, prevents that insulating cord 2 from deviating from from fixed card 3.
The preparation method of above-mentioned insulating cord, comprises the following steps:
(1) choose the aramid fiber yarn (tubular) of twisting 1500D, and make into some shape aramid fiber yarns of rectifying by hand, then dye and moistureproof processing;
(2) aramid fiber yarn is dried, then put baking oven into and dry;
(3) the shape aramid fiber yarn of rectifying of drying is made into several little tubulars by hand, then with cover, knits establishment mechanism and make needed diameter and length, last parcel one deck aramid line tightly outside, formation finished product;
(4) finished product is put in baking oven and again dries.
The percentage elongation of finished product is less than 2%-3%.Finished product is carried out work frequency dry flash voltage test and under high humility, exchanges Leakage Current test.
The present invention is in ± 800kV extra high voltage direct current transmission line replacing linear insulator string under electrification operation, for replacing mechanical load and the electric insulation intensity of wire that linear insulator chain bears, the insulating tool that carries out the operation of lifting wire.The present invention coordinates with great tonnage hydraulic wire grip, six-multiple conductor line lifter, can effectively solve 1000mm 2large-section lead ± difficult problem of 800kV extra high voltage direct current transmission line replacing linear insulator string under electrification, filled up current domestic 1000mm 2large-section lead ± blank of 800kV extra high voltage direct current transmission line charged for replacement Special-purpose lifting insulating tool.
The above, be only preferred embodiment of the present invention, not the present invention done to any pro forma restriction, and any simple modification that every foundation technical spirit of the present invention is done, all still belongs in the scope of technical solution of the present invention.

Claims (6)

1. a 800kV extra high voltage line soft insulating pull-rod, contains insulating cord, it is characterized in that: described insulating cord two ends form annular cover by fixed card respectively, and described insulating cord is processed by the braiding of high strength aramid fiber yarn.
2. 800kV extra high voltage line soft insulating pull-rod according to claim 1, is characterized in that: on described insulating cord, be set with protective sleeve.
3. 800kV extra high voltage line soft insulating pull-rod according to claim 1, is characterized in that: described annular puts and is provided with pressure sensor, and described pressure sensor is connected with alarm by controller.
4. 800kV extra high voltage line soft insulating pull-rod according to claim 1, is characterized in that: described fixed card is hood type structure, clip and connecting bolt, consists of; The end of described insulating cord is equipped with knot, prevents that insulating cord from deviating from from fixed card.
5. according to a preparation method for insulating cord in 800kV extra high voltage line soft insulating pull-rod described in claim 1-4 any one, comprise the following steps:
(1) choose the aramid fiber yarn (tubular) of twisting 1500D, and make into some shape aramid fiber yarns of rectifying by hand, then dye and moistureproof processing;
(2) aramid fiber yarn is dried, then put baking oven into and dry;
(3) the shape aramid fiber yarn of rectifying of drying is made into several little tubulars by hand, then with cover, knits establishment mechanism and make needed diameter and length, last parcel one deck aramid line tightly outside, formation finished product;
(4) finished product is put in baking oven and again dries.
6. the preparation method of insulating cord according to claim 5, is characterized in that: the percentage elongation of described finished product is less than 2%-3%.
CN201310484078.0A 2013-10-16 2013-10-16 Soft insulation pull rod for 800kV ultrahigh-voltage line and manufacturing method of insulation rope Pending CN103545752A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310484078.0A CN103545752A (en) 2013-10-16 2013-10-16 Soft insulation pull rod for 800kV ultrahigh-voltage line and manufacturing method of insulation rope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310484078.0A CN103545752A (en) 2013-10-16 2013-10-16 Soft insulation pull rod for 800kV ultrahigh-voltage line and manufacturing method of insulation rope

Publications (1)

Publication Number Publication Date
CN103545752A true CN103545752A (en) 2014-01-29

Family

ID=49968946

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310484078.0A Pending CN103545752A (en) 2013-10-16 2013-10-16 Soft insulation pull rod for 800kV ultrahigh-voltage line and manufacturing method of insulation rope

Country Status (1)

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CN (1) CN103545752A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110391606A (en) * 2019-08-26 2019-10-29 国网河南省电力公司检修公司 A kind of the soft of large-tonnage mentions line insulating tool and preparation method thereof
CN113502595A (en) * 2021-08-06 2021-10-15 江苏神韵绳缆有限公司 Manufacturing method of rope ring of airborne rope

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1113663A (en) * 1993-06-14 1995-12-20 蒂莫西·G·加拉尼科 Double saddle clamp
JP2003138491A (en) * 2001-10-31 2003-05-14 Hiromasa Nakagawa Branched rope using circular knitted rope
CN1584197A (en) * 2004-06-07 2005-02-23 万金俊 Dampproof mulberry milk insulative string producing method with electric operating
CN1584198A (en) * 2004-06-07 2005-02-23 万金俊 Dampproof chemical fibre insulative string producing method with electric operating
CN101319462A (en) * 2008-07-04 2008-12-10 西安工程大学 Dyeing-assist agent used for aramid fiber dyeing, preparation method and dyeing method thereof
CN201408944Y (en) * 2009-05-15 2010-02-17 上海市南电力工程有限公司 Flexible bearing rope for 10 kV by-pass cables
CN201570810U (en) * 2009-11-25 2010-09-01 国网电力科学研究院 Live-wire work soft insulating wire-lifting device
CN201584698U (en) * 2009-12-03 2010-09-15 保定供电公司 Soft insulating tension rod for live transmission line work
CN203553745U (en) * 2013-10-16 2014-04-16 国家电网公司 A 800kV extra high voltage direct current line 150kN level soft insulation pull rod

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1113663A (en) * 1993-06-14 1995-12-20 蒂莫西·G·加拉尼科 Double saddle clamp
JP2003138491A (en) * 2001-10-31 2003-05-14 Hiromasa Nakagawa Branched rope using circular knitted rope
CN1584197A (en) * 2004-06-07 2005-02-23 万金俊 Dampproof mulberry milk insulative string producing method with electric operating
CN1584198A (en) * 2004-06-07 2005-02-23 万金俊 Dampproof chemical fibre insulative string producing method with electric operating
CN101319462A (en) * 2008-07-04 2008-12-10 西安工程大学 Dyeing-assist agent used for aramid fiber dyeing, preparation method and dyeing method thereof
CN201408944Y (en) * 2009-05-15 2010-02-17 上海市南电力工程有限公司 Flexible bearing rope for 10 kV by-pass cables
CN201570810U (en) * 2009-11-25 2010-09-01 国网电力科学研究院 Live-wire work soft insulating wire-lifting device
CN201584698U (en) * 2009-12-03 2010-09-15 保定供电公司 Soft insulating tension rod for live transmission line work
CN203553745U (en) * 2013-10-16 2014-04-16 国家电网公司 A 800kV extra high voltage direct current line 150kN level soft insulation pull rod

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110391606A (en) * 2019-08-26 2019-10-29 国网河南省电力公司检修公司 A kind of the soft of large-tonnage mentions line insulating tool and preparation method thereof
CN113502595A (en) * 2021-08-06 2021-10-15 江苏神韵绳缆有限公司 Manufacturing method of rope ring of airborne rope

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Application publication date: 20140129