Stranded cable and method of manufacturing stranded cables

FIELD: electricity.

SUBSTANCE: invention relates to a stranded cable (2) used, for example, in the automobile industry, including single wires (4, 6). Several identically executed single wires (4) are arranged as outer wires (4) around one central inner wire (6), and single wires (4, 6) are forming a complex that is surrounded by insulation (12). The outer wires (4) are non-pressed and have a non-circular cross-section, so that the size of the outer wires (4) - when viewed in cross section - increases from the inner wire (6) radially outside, and the mentioned complex of single wires (4, 6) is not pressed, so that it has a high ultimate strength under alternating bending.

EFFECT: cable provides a high ultimate strength for alternating bending.

15 cl, 3 dwg

 



 

Same patents:

FIELD: electricity.

SUBSTANCE: method of electric conductor manufacturing includes introduction of an additive consisting of a mix of heat-resistant organosilicone fluid (OSF) and heat-resistant fluororganic compound (FOC) in the amount of 0.3-1.5% by weight into granulate of radiation-synthesized compound based on copolymer of tetrafluoroethylene and ethylene. Proportion of OSF and FOC varies within limits of 1:3 up to 3:1. The obtained mixture of granulate and additive is delivered to a loading hopper of the extrusion machine, thereafter at least one coating of this mixture is applied as insulation to electric conductor and irradiated. Electric strength of conductor is more than 70 kV/mm.

EFFECT: improving manufacturability and productivity of the suggested method due to exclusion of destruction of radiation-synthesized compound at growth rate of its application to conductor, high physical and mechanical and electrical properties of insulation.

3 tbl, 1 ex

Marking label // 2459301

FIELD: electricity.

SUBSTANCE: marking label made of a flexible elastic material in the form of a strip having a lengthy shape and arranged along a market item, besides, it is equipped with two pairs of transverse slots arranged at the label edges and having length slightly higher than the length of marked item circumference section.

EFFECT: reduced material intensity, higher manufacturability of production and improved operational properties of a marking label, simplified design and higher universality, reliable fixation of a label without a risk of its slippage on a marked item.

2 cl, 4 dwg

FIELD: electricity.

SUBSTANCE: object of the present invention is an electric cable (1), containing shell (2) with external marking. Marking is formed by block (3), at the same time pictures (4, 5) are arranged serially along cable length, besides, block of pictures is repeated at least twice along the cable length, starting from the free end of cable (12). The object of the present invention is also the method to press contact (7) on such a cable, at the same time external marking makes it possible to determine position of cable in cartridge.

EFFECT: good quality of further pressing.

18 cl, 10 dwg

FIELD: electrical engineering.

SUBSTANCE: proposed current-carrying cable has insulated current-carrying conductors covered with insulating sheath and connected at ends to contact assemblies. Insulating sheath is essentially band with current-carrying conductors connected at its edges to provide for regulating conductor-to-conductor capacitance and spaced minimum 4 cm apart on band section between contact assemblies; mentioned band is made for interconnecting its edges at least on part of its length for driving current-carrying conductors together. Current-carrying conductor used for proposed cable has two insulated wires covered with common insulating sheath. Both wires are stranded over conductor length; stranded wires are essentially equal-length conductors alternately stranded clockwise and counter-clockwise and having equal number of turns and twisted with equal force.

EFFECT: ability of regulating conductor-to-conductor capacitance over perimeter.

4 cl, 12 dwg

FIELD: electrical engineering.

SUBSTANCE: proposed device has hose 22 designed for fixation on cable 3 and provided with relevant cable identifying marks on its outer surface. Hose is flattened and its section 23 is closed on at least part of its width while its naked part forms passage for cable 3.

EFFECT: facilitated use of device.

12 cl, 13 dwg

The invention relates to optical fiber having a core, a deposited coating of a single layer or laminated layers of synthetic material and colour marking on the outer layer of synthetic material or embedded in this layer

Cable // 2144710
The invention relates to the field of power engineering and telecommunication and can be used in the identification is produced, transmitted and consumed electricity and for fault detection in cable

The invention relates to electrical engineering, primarily to cable technology, in particular to the four electric cables designed to transmit energy at high power levels

A marking module // 2088990

FIELD: electrical engineering.

SUBSTANCE: proposed device has hose 22 designed for fixation on cable 3 and provided with relevant cable identifying marks on its outer surface. Hose is flattened and its section 23 is closed on at least part of its width while its naked part forms passage for cable 3.

EFFECT: facilitated use of device.

12 cl, 13 dwg

FIELD: electrical engineering.

SUBSTANCE: proposed current-carrying cable has insulated current-carrying conductors covered with insulating sheath and connected at ends to contact assemblies. Insulating sheath is essentially band with current-carrying conductors connected at its edges to provide for regulating conductor-to-conductor capacitance and spaced minimum 4 cm apart on band section between contact assemblies; mentioned band is made for interconnecting its edges at least on part of its length for driving current-carrying conductors together. Current-carrying conductor used for proposed cable has two insulated wires covered with common insulating sheath. Both wires are stranded over conductor length; stranded wires are essentially equal-length conductors alternately stranded clockwise and counter-clockwise and having equal number of turns and twisted with equal force.

EFFECT: ability of regulating conductor-to-conductor capacitance over perimeter.

4 cl, 12 dwg

FIELD: electricity.

SUBSTANCE: object of the present invention is an electric cable (1), containing shell (2) with external marking. Marking is formed by block (3), at the same time pictures (4, 5) are arranged serially along cable length, besides, block of pictures is repeated at least twice along the cable length, starting from the free end of cable (12). The object of the present invention is also the method to press contact (7) on such a cable, at the same time external marking makes it possible to determine position of cable in cartridge.

EFFECT: good quality of further pressing.

18 cl, 10 dwg

Marking label // 2459301

FIELD: electricity.

SUBSTANCE: marking label made of a flexible elastic material in the form of a strip having a lengthy shape and arranged along a market item, besides, it is equipped with two pairs of transverse slots arranged at the label edges and having length slightly higher than the length of marked item circumference section.

EFFECT: reduced material intensity, higher manufacturability of production and improved operational properties of a marking label, simplified design and higher universality, reliable fixation of a label without a risk of its slippage on a marked item.

2 cl, 4 dwg

FIELD: electricity.

SUBSTANCE: method of electric conductor manufacturing includes introduction of an additive consisting of a mix of heat-resistant organosilicone fluid (OSF) and heat-resistant fluororganic compound (FOC) in the amount of 0.3-1.5% by weight into granulate of radiation-synthesized compound based on copolymer of tetrafluoroethylene and ethylene. Proportion of OSF and FOC varies within limits of 1:3 up to 3:1. The obtained mixture of granulate and additive is delivered to a loading hopper of the extrusion machine, thereafter at least one coating of this mixture is applied as insulation to electric conductor and irradiated. Electric strength of conductor is more than 70 kV/mm.

EFFECT: improving manufacturability and productivity of the suggested method due to exclusion of destruction of radiation-synthesized compound at growth rate of its application to conductor, high physical and mechanical and electrical properties of insulation.

3 tbl, 1 ex

FIELD: electricity.

SUBSTANCE: invention relates to a medium-voltage or high-voltage cable for transfer and distribution of electrical energy. An electrical power cable has external semiconducting layer (24) extruded around the outermost layer of sheath (22) of the cable and is in contact with it. Sheath (22) can have multiple polymer layers (22-1, 22-2). Semiconducting layer (24) differs from the outermost layer of sheath (22), which is located directly under it, at least by colour and possibly also by texture, as well as thickness of semiconducting layer (24) comprises up to 20% of total thickness of sheath (22) and semiconducting layer (24).

EFFECT: observable properties of semiconducting layer (24) and the outermost layer of sheath (22) reduce hazard of unintentional damage to sheath (22) at removal of semiconducting layer (24) for sheath integrity tests.

15 cl, 2 dwg

Control system // 2573391

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to a control system for use in underground operations having two control computers and one network cable which connects control computers. The control computers are designed to transmit data over a first network cable using high-frequency signals. Each control computer is designed to transmit data using low-frequency signals over one network cable.

EFFECT: improved transmission.

10 cl, 11 dwg

FIELD: electrical engineering.

SUBSTANCE: invention relates to electric cable, fitted with theft deterrence means. Invention relates to electrical cable (1, 10) comprising at least two conducting strands (2, 3) and theft deterrence means in form of a marking (8). Marking is a series of relief prints (8) akin to a bar code, wherein marking (8) is made on connectable part (6, 16) fixed on cable (1, 10), wherein the connectable part (6, 16) is closely and randomly interlaced with strands (2, 3) in order to prevent its extraction from cable (1, 10).

EFFECT: invention provides resistance of marking to any external action, and prevents its extraction from cable.

13 cl, 3 dwg

FIELD: cables.

SUBSTANCE: invention relates to high performance, high temperature resistant wires and cables as well as to a method for production thereof. Said wires and cables are fire-resistant and are used in heavy operating conditions, such as drilling or mining operations, industrial, military, aerospace and sea applications. Tape (20) comprises a laminated or co-extruded insulating first layer (24) of a polymer matrix in which mica particles are dispersed and second layer (26) of a polyether ether ketone (PEEK) or a blend or alloy thereof containing at least 50 wt% of PEEK. Surface of at least one said layer, opposite other said layer, is coated with fluoropolymer film (25). Sid tape can be used to form a multilayer coating on conductor (10) such as an electric wire. Outer protective layer (28) of a fluoropolymer such as PTFE may be applied around wrapped tape, by wrapping or extrusion.

EFFECT: technical result is production of wires and cables with good insulation, high temperature resistance, and also having improved mechanical properties at high temperatures.

59 cl, 4 dwg, 1 tbl

Marking label // 2616449

FIELD: electricity.

SUBSTANCE: marking strip is provided with two longitudinal recesses, the length of which is determined by the diameter of the product to be marked and placed on the top and bottom edges of the left or right side of the label plane. Three strips, formed by two longitudinal recesses, make the marking label grips, by passing the label through the product to be marked. The use of additional slots allows to provide the label using, while marking the products with different cross-sections.

EFFECT: improving manufacturability and improving the performance properties of the marking label, design simplification and universality increase.

2 cl, 6 dwg

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