RU2581159C1 - Steel-aluminum wire with integrated optical cable for overhead transmission line (versions) - Google Patents

Abstract

FIELD: electronic equipment.

SUBSTANCE: optical cable, built in steel aluminium wire, in which steel core is made from steel of high-strength zinc-plated wires with diameter of 1.0÷5.0 mm and comprises central tube made from heat-and high-strength composite material with optical fibres and hydrophobic compound. Around tube is layer of six steel zinc-plated wires and tubes with optical fibres, with simultaneous deformation of steel core with reduction of cross section area of core 1.5÷3.0 %. Steel core is coated with lubricant, resistant to action of high temperature, layer with thickness of 0.2÷0.5 mm, then is first lay of fourteen aluminium wires with diameter 1.15÷4.5 mm, second lay of fourteen aluminium wires with diameter 1.2÷5.0 m each, lays feature identical lay pitch in one direction with linear contact wires, plastically deformed outer surfaces of wires of upper lay at reduction of cross section area of wire 6÷10 %.

EFFECT: invention enables to transmit electric power at rated voltage 35 kV and higher and for optical communication via cable, while maintaining operability of optical cable for long period in overhead transmission line.

4 cl, 4 dwg

Description

The invention relates to the field of electrical engineering, namely to the construction of a steel-aluminum wire with an integrated optical cable, designed to transmit electric energy through an overhead power line (VL) of 35 kV and higher and for optical communication via a cable built into an aluminum-steel wire, while maintaining the operability of the optical cable for a long period of operation as part of the overhead line.

Known combination cable for transmitting optical and electrical signals.

The cable contains an internal electric conductor made in the form of a metal screen enclosed in an elastic sheath, and an external conductor in the form of a metal cylinder. The space between the conductors is filled with a dielectric of signals (see patent RU No. 2066871, IPC G02B 6/44, H01B 11/22, published on September 20, 1996).

The well-known proposal does not solve issues related to the integrated transmission of electric energy through an overhead power line (OHL) of 35 kV and higher and optical communication via a cable built into an aluminum-steel wire.

Known wire for overhead power lines. The wire contains a conductive core, placed on a supporting core, made in the form of a long rod of composite material. At least one fiber-optic cable is placed in the main core along the entire length, and electrical insulation material is laid between the core and the conductive core (see Utility Model Patent RU No. 119927, IPC H01B 5/08, published August 27, 2012).

The disadvantages of this wire are low electrical conductivity due to the low electrical conductivity of the composite core, rather high complexity associated with the manufacture of a bearing core made in the form of a long rod of composite material, in which a fiber optic cable is placed along the entire length, and, as a consequence, the high cost of its manufacture.

Known optical cable, consisting of several metal wire strands. In the central parts of the strands made of steel wire, optical modules are placed (see patent No. 2082191, IPC G02821 91, published on 06/20/1997).

The present invention does not solve the problems associated with the transmission of electric energy through an overhead power line (VL) of 35 kV and above. This product does not solve the problem of protecting the optical communication channel, which can be destroyed at any time due to heating of the metal part of the product with low conductivity from short circuit currents. The production of such a cable is expensive and requires complex equipment.

The aim of the invention is the creation of a steel-aluminum wire with a built-in optical cable, designed to transfer electrical energy through an overhead power line (VL) of 35 kV and higher and to organize optical communication via a cable built into a steel-aluminum wire, while maintaining the operability of the optical cable for a long time operation as part of overhead lines.

There are four options for steel-aluminum wire with integrated optical communication cable.

In the form of a metal core plastically deformed over the cross-sectional area of steel wires with an integrated optical cable containing optical fiber (OV) with external coils of aluminum wires, plastically deformed over the entire cross-sectional area of the wire.

In the form of a metal core with an integrated optical cable containing an optical fiber with external windings of aluminum wires of circular cross section, not plastically deformed over the cross-sectional area of the wire.

The essence of the claimed invention consists in the use of steel-aluminum wire for the simultaneous transmission of electric energy through an overhead power line (VL) of 35 kV and higher and optical communication via a cable built into the steel-aluminum wire, in four versions.

Option 1: an optical cable embedded in a steel-aluminum wire in which the steel core is made of high-strength steel galvanized wires with a diameter of 1.0 ÷ 5.0 mm each. The core comprises a central tube 1 made of a heat-protective and high-strength composite material with optical fibers and a hydrophobic compound to protect the optical fibers from moisture and vibration. Around the tube, it was made of six galvanized steel wires 2 and tube 1 with optical fibers, with simultaneous deformation of the steel core with a degree of compression of the core cross-sectional area of 1.5 ÷ 3.0%. The steel core is coated with a grease resistant to high temperature with a thickness of 0.2 ÷ 0.5 mm, then the first twist of fourteen aluminum wires 3 with a diameter of 1.15 ÷ 4.5 mm is made, the second twist of fourteen aluminum wires 4 with a diameter of 1, 2 ÷ 5.0 m each. The coils are made with the same lay pitch, in one direction and with a linear touch of the wires, the outer surfaces of the wires of the upper coils are plastically deformed with a degree of compression of the cross-sectional area of the wire 6 ÷ 10%.

The invention is illustrated in the drawing, where in FIG. 1 shows a cross section of a steel-aluminum wire. In the center of the cross section, the tube 1 with optical fibers is located in the midst of six high-strength galvanized wires 2.

Option 2: steel-aluminum wire, in which the steel core is made of high-strength steel galvanized wires with a diameter of 1.0 ÷ 5.0 mm each. The core contains a central wire 5, around which is made of four steel wires 2 and three tubes 1 with optical fibers made of heat-protective and high-strength composite material with optical fibers and a hydrophobic compound to protect the optical fibers from moisture and vibration while deforming the steel core with the degree of compression of the cross-sectional area of the core 1.5 ÷ 3.0%. The steel core is coated with a heat-resistant grease with a layer thickness of 0.2 ÷ 0.5 mm, then the first twist of fourteen aluminum wires 3 with a diameter of 1.15 ÷ 4.5 mm is made, the second twist of fourteen aluminum wires 4 with a diameter of 1.2 ÷ 5.0 m each. The coils are made with the same lay pitch, in one direction and with a linear touch of the wires, the outer surfaces of the wires of the upper coils are plastically deformed with a degree of compression of the cross-sectional area of the wire 6 ÷ 10%.

The invention is illustrated in the drawing, where in FIG. 2 shows a cross section of a steel-aluminum wire. Three tubes 1 with optical fibers are located in a midway of four high-strength galvanized wires 2.

Option 3: an optical cable embedded in a steel-aluminum wire in which the steel core is made of high-strength steel galvanized wires with a diameter of 1.0 ÷ 5.0 mm each. The core comprises a central tube 1 made of a heat-protective and high-strength composite material with optical fibers and a hydrophobic compound to protect the optical fibers from moisture and vibration. Around the tube is made of six steel galvanized wires 2 and tube 1 with optical fibers. The steel core is coated with a heat-resistant grease with a layer thickness of 0.2 ÷ 0.5 mm, then the first twist of fourteen aluminum wires 3 with a diameter of 1.15 ÷ 4.5 mm is made, the second twist of fourteen aluminum wires 4 with a diameter of 1.2 ÷ 5.0 m each. The midwives are made with the same lay in one direction and with a linear touch of the wires.

The invention is illustrated in the drawing, where in FIG. 3 shows a cross section of a steel-aluminum wire. In the center of the cross section, the tube 1 with optical fibers is located in the midst of six high-strength galvanized wires 2.

Option 4: steel-aluminum wire, in which the steel core is made of high-strength steel galvanized wires with a diameter of 1.0 ÷ 5.0 mm each. The core contains a central wire 5, around which is made of four steel wires 2 and three tubes 1 with optical fibers made of heat-protective and high-strength composite material, and a hydrophobic compound to protect the optical fibers from moisture and vibration. The steel core is coated with a heat-resistant grease with a layer thickness of 0.2 ÷ 0.5 mm, then the first twist of fourteen aluminum wires 3 with a diameter of 1.15 ÷ 4.5 mm is made, the second twist of fourteen aluminum wires 4 with a diameter of 1.2 ÷ 5.0 m each. The midwives are made with the same twist pitch, in one direction and with a linear touch of wires.

The invention is illustrated in the drawing, where in FIG. 4 shows a cross section of a steel-aluminum wire. Three tubes 1 with optical fibers are located in a midway of four high-strength galvanized wires 2.

This allows you to simultaneously apply new designs of steel-aluminum wires, with an integrated optical cable, for transmitting electrical energy to a rated alternating voltage of 35 kV and higher and for optical communication via cable, while maintaining the operability of the optical cable for a long period of operation as part of the overhead line.

Claims (4)

1. Steel-aluminum wire with an optical cable, in which the core is made of high-strength galvanized steel wires, contains a central tube made of heat-shielding and high-strength composite material with optical fibers and a hydrophobic compound to protect the optical fibers from moisture and vibration, around which six are made of six steel high-strength galvanized wires, and tubes with optical fibers, with simultaneous deformation of the steel core with a degree of compression of the transverse core cross sections 1.5 ÷ 3.0%, coated with a core layer with a thickness of 0.2 ÷ 0.5 mm grease resistant to high temperature, then the first twist of fourteen aluminum wires and the second twist of fourteen aluminum wires were made, the twigs are made with the same twist pitch, in one direction and with a linear touch of the wires, the outer surfaces of the upper twist wires are plastically deformed with a compression ratio of the cross section of the wire 6 ÷ 10%. 2. Steel-aluminum wire, in which the steel core is made of high-strength galvanized steel wires, contains a central wire around which is made of four high-strength galvanized steel wires and three tubes with optical fibers made of heat-protective and high-strength composite material with optical fibers and a hydrophobic compound to protect optical fibers from moisture and vibration. With the simultaneous deformation of the steel core with a degree of compression of the core cross-sectional area of 1.5 ÷ 3.0%, with a core coating with a layer of 0.2 ÷ 0.5 mm thick lubricant resistant to high temperature, the first twist was made of fourteen aluminum wires and the second twist of fourteen aluminum wires, the twigs are made with the same twist pitch, in one direction and with a linear touch of the wires, the outer surfaces of the upper twist wires are plastically deformed with the degree of compression of the cross-sectional area wire cross-section 6 ÷ 10%. 3. A steel-aluminum wire with an optical cable, in which the core is made of high-strength galvanized steel wires, contains a central tube made of heat-protective and high-strength composite material with optical fibers and a hydrophobic compound to protect the optical fibers from moisture and vibration, around which six were made steel high-strength galvanized wires, and tubes with optical fibers, coated with a core layer with a thickness of 0.2 ÷ 0.5 mm grease, resistant to high temperature Aturi, description is made first of the fourteen coils of aluminum wires and a second of the fourteen coils of aluminum wires, coils formed with the same pitch of lay, in one direction and a linear contact wires. 4. The steel-aluminum wire, in which the steel core is made of high-strength galvanized steel wires, contains a central wire around which is made of four high-strength galvanized steel wires and three tubes with optical fibers made of heat-protective and high-strength composite material with optical fibers and a hydrophobic compound to protect optical fibers from moisture and vibration, coated with a core layer of a thickness of 0.2 ÷ 0.5 mm lubricant resistant to high temperature perature, the first description is made of the fourteen coils of aluminum wires and a second of the fourteen coils of aluminum wires, coils formed with the same pitch of lay, in one direction and a linear contact wires.

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