CA1090322A - Method to draw out wires and their hanging up in poles - Google Patents

Method to draw out wires and their hanging up in poles

Info

Publication number
CA1090322A
CA1090322A CA316,500A CA316500A CA1090322A CA 1090322 A CA1090322 A CA 1090322A CA 316500 A CA316500 A CA 316500A CA 1090322 A CA1090322 A CA 1090322A
Authority
CA
Canada
Prior art keywords
wire
aircraft
reel
frame
poles
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
Application number
CA316,500A
Other languages
French (fr)
Inventor
Rolf Granberg
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.)
SKOGSFLYG CASSEL AERO AB
Original Assignee
SKOGSFLYG CASSEL AERO AB
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 SKOGSFLYG CASSEL AERO AB filed Critical SKOGSFLYG CASSEL AERO AB
Application granted granted Critical
Publication of CA1090322A publication Critical patent/CA1090322A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
    • H02G1/04Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables for mounting or stretching

Abstract

ABSTRACT OF THE DISCLOSURE

The present invention provides a method of drawing out wire from a reel, particularly line wires which are to be suspended from poles, comprising suspending said reel below an aircraft on a supporting frame, and flying the aircraft over the poles so that the wire is laid on supports attached thereto as the wire is unwound from the reel.

Description

This invention reiates to a method of drawing out wires, particularly electric cables which are to be suspended overhead from poles. The wires are wound on reels which are mounted rotat-ably on a horizontal shaft.
Hitherto in order to hang the wires from their supporting insulators, a crane movable over the terrain has been used which has a boom carrying a cage for a workman. This was hoisted up with the supporting insulator in each pole for adjusting the wire.
This work is laborious and time consuming, especially in a rough terrain, but can be facilitated in a high degree.
According to thepresent invention there is provided a method of drawing out wire from areel to provide line wires which are suspended from poles, comprising suspending said reel for rotation about a horizontal axis below an aircraft on a supporting frame, and flying the aircraft over the poles so that the wire is drawn out and laid on supports attached thereto as the wire is unwound from the reel, said wire on unwinding from said reel sliding between guide members disposed on inwardly turned mutually opposed ends of a pair of parallel projecting arms for said frame to thereby guide said frame.
The present invention also provides an apparatus for use with an aircraft for drawing out wire from a reel to provide line wires suspended from poles over which the aircraft flies which apparatus comprises a frame adapted to be attached beneath said aircraft, said frame mounting said reel for rotation about i a horizontal axis beneath said aircraft said frame being provided - with a pair of substantially parallel projecting arms having inwardly turned, mutual~y opposed ends, said ends carrying guide members which slide along said wire and thereby guide said frame.
The inveniion will now be described in more detail, by way of example only, with reference to the accompanying drawings in which:

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Fig. 1 is a diagrammatic view showing a helicopter drawing out an overhead wire;
Fig. 2 is a close-up view showing a supporting insulator;
Fig. 3 shows a supporting reel lifted by a helicopter;
and Fig. 4 shows the detachable shaft of the reel.
The wire 1, in the form of an electric cable, which is to be drawn out and suspended is wound on an ordinary reel 2.
Before drawing out the wire, the reelismounted in a U-frame 4, provided with a lift eye 3 in such a manner, that a shaft 6 provided with a crank S is inserted through holes, not .

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shown, in the lower ends of the yoke and the central hole through the reel. A threaded end 7 of the shaft is screwed into a central hole 8 of a disk 9 forming part of a disc brake.
The disk is connected to an attachment means 10, so that the reel can turn the disk 9. 11 is a yoke of the disk brake. 12 is an electric jack, which is connected to the brake cylinder 13 of the hydraulic disk brake. The electric jack is remotely operated by a connecting means 14.
For the drawing out and hanging up of the wire 1, a 10 helicopter 15 or another flying vehicle is used. To this end the helicopter is provided with a winch, not shown, the lift wire 16 of which carries a lift hook 17. The lift wire is part-ially drawn out and the lifting hook is attached to the lift eye 3 of the frame 4. The connection means 14 is attached to an operating means in the cockpit accessible to the pilot of the helicopter. The conductor wire 1 is drawn out partially from the reel 2 and the free end of it is attached to the ground in an suitable manner.
The helicopter then takes off, thereby lifting the frame 4 carrying the reel, and flies forwards slowly along a row of poles thereby winding the conductor wire out from the reel. By means of the disk brake, the pilot gives the conduc-tor a suitable pull. ~e steers the helicopter so that the con-ductor wire is laid in the groove 18 in the top of the support-ing insulators 19, which are mounted in the poles along the desired direction for the conductor wire. By means of a rear-view mirror 21 arranged in the nose of the helicopter the pilot is able to place the conductor wire in the grooves with a great precision. This manoeuvre can be facilitated by providing the supporting insulators with pairs of upright horns 22, which guide the conductor wire towards the grooves 18. Additionally ground workman can direct the pilot by signals and facilitate -'`` lO90~ZZ

this precision work.
Scarcely no movement will occur by the conductor wire in the groove 18 due to the fact that the free end of the conduc-tor wire 1 is attached to the ground. The pilot flies the --helicopter from one pole to another thereby hanging up the conductor wire. When the whole or most of the conductor wire has been unwound from the reel 2, the pilot allows the heli-copter to land or he winches the frame 4 down to the ground, whereafter the ground workmen attach the other end of the con-ductor wire in a suitable manner. They can now climb up the poles and attach the conductor wire to the insulators 19. If more, as a rule three, conductors are to be hung up, the pilot has to travel a corresponding number of times along the row of poles. The attachment of the conductor wires to the insulators can wait until all of the conductor wires have been drawn out and hung up. In this manner only one climb of each pole will be necessary in spite of the fact that more conductor wires have been hung up.
i To prevent the frame 4 carrying the reel 2 from being turned obliquelly by the pull of the conductor wire 1, the frame can be guided by two guiding arms 23 directed backwards from the lower ends of the frame. Their free ends are biassed against each other and rotatably mounted guide wheels which rest by means of their grooved peripheries on the conductor wire 1, each from its own direction, where the wire runs out from the reel. The guiding wheels can be replaced by glide shoes or by a guiding eye, through which the conductor wire runs.
By carrying the heavy reel with a helicoper one is no longer dependent on the type of terrain.

Claims (12)

THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A method of drawing out wire from a reel to provide line wires which are suspended from poles, comprising suspending said reel for rotation about a horizontal axis below an aircraft on a supporting frame, and flying the aircraft over the poles so that the wire is drawn out and laid on supports attached thereto as the wire is unwound from the reel, said wire on unwinding from said reel sliding between guide members disposed on inwardly turned mutually opposed ends of a pair of parallel projecting arms for said frame to thereby guide said frame.
2. A method according to claim 1 wherein said supports are supporting insulators for said wire.
3. A method according to claim 1 wherein said reel is suspended below the aircraft by means of a winch.
4. A method according to claim 1 wherein the wire is laid between a pair of guide horns projecting from each support.
5. A method according to any one of claims 1 to 3 where-in the pilot of the aircraft controls the drawing out and the laying of the wire by means of a rear-view mirror on the aircraft.
6. A method according to any of the claims 1 to 3, wherein a person on the ground assists in directing the aircraft by signals to the pilot.
7. A method according to claim 1 wherein once the wire has been laid on the supports, a person on the ground climbs up the poles and secures the wire to the supports.
8. A method according to claim 7 wherein the fastening of the wire to the poles is delayed until a plurality of wires have been laid on the supports.
9. A method according to any one of claims 1 to 3 wherein the aircraft is a helicopter.
10. A method according to any one of claims 1 to 3 wherein the reel is mounted about a horizontal axis in the support-ing frame.
11. An apparatus for use with an aircraft for drawing out wire from a reel to provide line wires suspended from poles over which the aircraft flies which apparatus comprises a frame adapted to be attached beneath said aircraft, said frame mounting said reel for rotation about a horizontal axis beneath said air-craft, said frame being provided with a pair of substantially parallel projecting arms having inwardly turned, mutually opposed ends, said ends carrying guide members which slide along said wire and thereby guide said frame.
12. An apparatus as claimed in claim 11 including brake means operable from said aircraft adapted to control the rotation of said reel in said frame.
CA316,500A 1977-11-18 1978-11-20 Method to draw out wires and their hanging up in poles Expired CA1090322A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7713018-5 1977-11-18
SE7713018A SE406995B (en) 1977-11-18 1977-11-18 KIT FOR EXTRACTION IN THE TERRAIN OF WINDED ROPES ON SPOOL FRAMES

Publications (1)

Publication Number Publication Date
CA1090322A true CA1090322A (en) 1980-11-25

Family

ID=20332904

Family Applications (1)

Application Number Title Priority Date Filing Date
CA316,500A Expired CA1090322A (en) 1977-11-18 1978-11-20 Method to draw out wires and their hanging up in poles

Country Status (5)

Country Link
CA (1) CA1090322A (en)
FI (1) FI783378A (en)
FR (1) FR2409617A1 (en)
NO (1) NO783894L (en)
SE (1) SE406995B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2400612A4 (en) * 2009-06-30 2014-11-26 Nagaki Seiki Kk Wire tenser
CN113889910A (en) * 2021-11-08 2022-01-04 国网山东省电力公司寿光市供电公司 Lead driving capable of rapidly crossing obstacles

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4993665A (en) * 1989-02-17 1991-02-19 Fred Sparling Device for attachment to a helicopter
FR2651930B1 (en) * 1989-09-12 1991-10-25 Cnmh HELIPORTED CABLE ROLLER.
RU2147389C1 (en) * 1999-12-15 2000-04-10 Государственное унитарное предприятие Октябрьская железная дорога Method for laying cable on supports of contact-lines, and of automatic block lines of railways
DE10216059A1 (en) * 2002-04-11 2003-10-23 Norddeutsche Seekabelwerk Gmbh Method and device for laying strand-like winding material
CN103594963B (en) * 2013-11-05 2016-01-13 国家电网公司 Flight stringing pay off rack
CN103594962B (en) * 2013-11-05 2016-02-24 国家电网公司 Transmission line flight wire-binding device
US10277023B2 (en) * 2017-07-21 2019-04-30 Discovery International Geophysics Inc. Aerial cable laying device
CN111470056B (en) * 2020-04-14 2021-07-09 国网江苏省电力有限公司扬州供电分公司 Intelligent pulley and working method thereof
FR3116390B1 (en) * 2020-11-19 2022-09-30 Rte Reseau De Transp Delectricite Cable unwinding pulley and adaptation device for such a pulley

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3211394A (en) * 1962-09-26 1965-10-12 Petersen Gerald A Winding device for twisted cable
US3586256A (en) * 1970-01-19 1971-06-22 Bertie William Wellman High-tension-wire-laying device for use with helicopters

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2400612A4 (en) * 2009-06-30 2014-11-26 Nagaki Seiki Kk Wire tenser
CN113889910A (en) * 2021-11-08 2022-01-04 国网山东省电力公司寿光市供电公司 Lead driving capable of rapidly crossing obstacles
CN113889910B (en) * 2021-11-08 2023-02-24 国网山东省电力公司寿光市供电公司 Lead driving capable of quickly crossing obstacles

Also Published As

Publication number Publication date
SE406995B (en) 1979-03-05
NO783894L (en) 1979-05-21
FI783378A (en) 1979-05-19
FR2409617A1 (en) 1979-06-15

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