RU136917U1 - COMMUNICATION AND COMMUNICATION CABLE COMBINED RADIATION RESISTANT - Google Patents

Abstract

1. The control and communication cable is combined radiation resistant, including coated with insulation from a polymeric material and twisted into a core, multi-wire copper conductive wires for transmitting electricity, as well as conductive wires for transmitting control signals, characterized in that an optical module consisting of two single-mode radiation-resistant fibers, and a polymer load-bearing element placed in the center of the core, in addition, the core is wrapped with a heat-resistant polymer tape and en in shell PVC increased radiation stoykosti.2. The cable according to claim 1, characterized in that the composition of the block copolymer of propylene with ethylene is used as the polymer insulation material. The cable according to claim 1, characterized in that the load-bearing element is a cable made of synthetic threads. The cable according to claim 1, characterized in that symmetrical shielded pairs are used as conductive wires for transmitting control signals.

Description

The utility model relates to the field of electrical engineering, and is intended for the transmission and distribution of electrical energy of alternating and direct current, control and communication signals, including the optical module, in mobile and stationary devices designed to operate in conditions of ionizing radiation.

There are various technical solutions in this area. So, a cable is known for use in robotics (US patent for invention No. 6103976, IPC: C22C 47/00; C22C 9/00; H01B 1/02; H01B 7/00; H01B 7/04, published. 08/15/2000), representing a group of insulated conductive wires located around a central reinforcing core.

The closest set of essential features to the proposed utility model is the control cable, alarm, control and data transmission (RF patent for utility model No. 47130, IPC H01B 7/00, published. 08/10/2005), which is selected as a prototype. Known cable contains multi-conductive conductors, twisted in pairs, and then in concentric coils, a sheath of polymeric material and auxiliary conductors.

The disadvantage of the prototype is that the cable does not have a polymer load-bearing element, which can be used to force the extraction of the operating device, in case of failure due to exposure to the radiation field.

A common disadvantage of the known analogues is the lack of an optical module, as well as the fact that they are not designed to work in conditions of ionizing radiation.

The problem the solution of which is aimed at solving a utility model is the creation of a control and communication cable combined radiation-resistant, designed for the operation of mobile and stationary devices capable of operating in conditions of ionizing radiation.

The technical result of the proposed utility model is to expand the functionality and increase reliability when working in conditions of ionizing radiation.

The technical result is achieved by the fact that in the control and communication cable combined radiation-resistant, including coated with insulation from a polymeric material, twisted into a core, multi-wire copper conductive wires for transmitting electricity, as well as conductive wires for transmitting control signals, according to the utility model, an optical module is additionally introduced , consisting of two single-mode radiation-resistant fibers, and a polymer load-bearing element placed in the center of the core. In addition, the core is wrapped with a heat-resistant polymer tape and placed in a shell of polyvinyl chloride plastic compound of increased radiation resistance.

Additional differences of the proposed cable is that:

- as the polymer insulation material, a composition of a block copolymer of propylene with ethylene is used;

- the load-bearing element is a cable made of synthetic threads;

- symmetric shielded pairs are used to transmit control signals.

The essence of the proposed utility model is illustrated in FIG. 1, which shows the proposed cable, in section, where:

1 - load-bearing element;

2 - conductive conductors for electric power transmission;

3 - optical module;

4 - conductive conductors for transmitting control signals;

5 - polymer tape;

6 - shell.

The cable includes coated with insulation from a polymeric material, twisted into a core, multi-wire copper conductive conductors 2 for transmitting electricity, conductive conductors 4 for transmitting control signals, an optical module 3. which is used for transmitting information and communication signals, consisting of two single-mode radiation-resistant fibers. Conductors 4 for transmitting control signals are symmetrical shielded pairs. As the polymeric insulation material, a cable composition of a block copolymer of propylene with ethylene is used. The core, in the center of which a polymer load-bearing element 1 is placed, is wrapped in a heat-resistant polymer tape 5 and placed in a sheath 6, made of PVC compound with increased radiation resistance. The load-bearing element 1, which is a cable made of synthetic threads, can be used to force the extraction of the device in operation, in case of failure due to exposure to the radiation field.

The sequence of technological operations in the manufacture of the proposed cable is as follows:

- twisting of copper wires into cores on a twisting machine;

- insulation of cores by extrusion on an extrusion line;

- shielding of isolated cores on a braid machine;

- twisting of the optical module 3, insulated cores 2, shielded pairs 4 and the load-bearing element 1 into the core, with a winding polymer tape 5 on the machine S-Z twisting;

- overlay 6 by extrusion on an extrusion line;

Materials used in the proposed cable:

plastic compound polyvinyl chloride grade MPE TU 6-02-77-89 - for the manufacture of shell 6;

Kevlar cord TU 8189-004-61160455-2010 - for the manufacture of a load-bearing element 1;

- copper wire brand MM TU 16-705-492-2005 - for the manufacture of cores 2 and 4;

- insulation from the cable composition of a block copolymer of propylene with ethylene TU 2243-052-05766563-98.

Thus, the proposed utility model has the following advantages over known solutions:

- stable operation under conditions of exposure to ionizing radiation;

- radiation resource of at least 10 ⁵ P;

- radiation increase in attenuation coefficient not more than 5 ^dB / km;

- transmission by cable of electricity, control commands, information and communication signals;

- the possibility of emergency evacuation of operating devices from the radiation field, using a polymer load-bearing element 1, which is part of the cable.

Claims (4)

1. The control and communication cable is combined radiation resistant, including coated with insulation from a polymeric material and twisted into a core, multi-wire copper conductive wires for transmitting electricity, as well as conductive wires for transmitting control signals, characterized in that an optical module consisting of two single-mode radiation-resistant fibers, and a polymer load-bearing element placed in the center of the core, in addition, the core is wrapped with a heat-resistant polymer tape and ene wrapped PVC increased radiation resistance. 2. The cable according to claim 1, characterized in that the composition of the block copolymer of propylene with ethylene is used as the polymer insulation material. 3. The cable according to claim 1, characterized in that the load-bearing element is a cable made of synthetic threads. 4. The cable according to claim 1, characterized in that symmetrical shielded pairs are used as conductive wires for transmitting control signals.

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