Analysis and Forecast
E.I. Uvarov, Adviser to General Director – Analyst of the Electrocable Association
The state of cable production in Russia and other CIS countries in the first half of 2014
The paper summarizes the 2014 half year performance results of the cable plants - members of the Electrocable Association.
Сable production in Russia and other CIS countries, Electrocable Association, energy (investment) cable and wire group, transport cable and wire group, OEM cable and wire, communication (telecommunications) cable and wire.
G.I. Meshchanov, Dr. Sc. (Engineering), President of the Electrocable Association
The development of telecommunication technologies and the state of communication cable production
Statistical data on production and consumption of various type communication cables on a global scale, in the CIS countries and in Russia are given in the paper. The interdependence of the telecommunication technology development and the change in the consumption and production patterns of these cables is shown. The state of the domestic market of indoor and outdoor telecommunication copper conductor cable and fiber optic cable is analyzed. The paper draws attention to the problems that domestic manufacturers of local telephone cable, LAN cable and optical cable have been facing over the last years.
Telecommunication technologies, outdoor telecommunication copper conductor cable, indoor telecommunication copper conductor cable, local telephone cable, LAN cable, optical cable.
Science and Technology
V.V. Bannov, Cand. Sc. (Engineering), Deputy General Director, Technical Director;
A.K. Bul’khin, Cand. Sc. (Engineering), Chairman of Board of Directors;
V.F. Klyuchnikov, Cand. Sc. (Economy), General Director;
ZAO Samara Cable Company;
Yu.P. Bolochagin, Associate Professor;
B.V. Popov, Cand. Sc. (Engineering), Professor;
V.B. Popov, Cand. Sc. (Engineering), Professor;
FGOBU VPO Povolzhsky State University of Telecommunications and Informatics
Design and electrical characteristics of symmetrical communication cables with skin-foam-skin insulation
The paper describes characteristics and specific features of symmetrical communication cables, in particular skin-foam-skin insulated cables. Comparative analysis of design and electrical characteristics (first of all transmission parameters) of symmetrical quad cables used in railway transport is carried out. Advantages of telephone communication cables with skin-foam-skin insulation with reference to cable design, transmission parameters and interference immunity are analyzed. Experimental investigations of interference parameters of КЦПппВП digital skin-foam-skin insulation cables within the frequency range up to 100 MHz are estimated. Complete conformity of cable characteristics with current requirements of both high-frequency хDSL and SKS systems over the frequency range up to 100 MHz is shown.
Symmetrical communication cable, skin-foam-skin polyethylene insulation, communication cable for broadband access, broadband access. .
A.E. Alimov, Cand. Sc. (Engineering), Deputy Head of Department of ZAO MNITI
V.A. Grigoriev, Dr. Sc. (Engineering), Head of department of ZAO MNITI;
Yu.T. Larin, Dr. Sc. (Engineering), General Director of OOO VNIIKP-OPTIC
A.G. Letyago, Dr. Sc. (Engineering), Adviser to General Director of ZAO MNITI, Corresponding Member of Russian Academy of Rocket and Artillery Sciences, Laureate of the RF State Prize;
M.B. Tsudikov, Cand. Sc. (Engineering), Director of OOO TPP “Konus”
O.V. Shavkunov, Principal Engineer, Post-Graduate, ZAO MNITI
Optical cables for industrial sensors
The operation principle and basic properties of the liquid-level indicator based on the optical cable consisting of quartz-quartz and quartz-polymer optical fibers were investigated. The results of using quartz-polymer optical fibers in the liquid type indicator are shown.
Optical cable, liquid level sensor, quartz-quartz optical fiber, quartz-polymer optical fiber, liquid type indicator.
V.V. Zubko, Cand. Sc. (Engineering), Leading Researcher;
D.S. Kaverin, Engineer;
M.V. Kochetov, Engineer;
K.S. Marinin, Head of Section;
K.A. Shutov, Cand. Sc. (Engineering), Head of Laboratory;
I.F. Chensky, Head of Section;
Untwisting of cable conductors under axial load
The paper is devoted to the investigation of the process of cable untwisting under axial load which necessitates the increased pitch of final twisting. This problem is particularly critical in the manufacture of “cable-in-sheath” type superconductors for large-size magnet systems, such as the magnet system for the International Thermonuclear Experimental Reactor (ITER), since the amount of heat released in superconducting cables is proportional to the pitch of twisting. This effect causes higher coolant consumption and consequently leads to a rise in the magnet system operation costs. A mathematical model of the process of increasing the twisting pitch along the cable length was developed. The results of experiments made on a short cable specimen were used to find the coefficients required for the model. The design data obtained according to the model and the twisting pitch values measured directly on the 760-m long cable authorized for the ITER were compared. It is shown that the design data correlate well with the experimental data.
ITER, mechanical tests, “cable-in-sheath”.
V.N. Egorov, Cand. Sc. (Engineering), Deputy Director of Research of the East Siberian branch of FGUP All-Russian scientific research institute of physicotechnical and radiotechnical measurements;
V.V. Kostromin, Cand. Sc. (Engineering), Chief Specialist of the test centre of OAO “Special Design Office of the Cable Industry”;
V.L. Masalov, Head of Department of the East Siberian branch of FGUP All-Russian scientific research institute of physicotechnical and radiotechnical measurements;
B.S. Romanov, Cand. Sc. (Physics and Mathematics), Head of Laboratory of OAO “Special Design Office of the Cable Industry”
Beta-radiation effect on the dielectric properties of cable insulating polymer materials
The dependences of relative dielectric constant and dielectric dissipation factor of two polyethylene grades and a number of fluoroelastomers at a frequency of 100 kHz and their specific volume resistance within the absorbed beta-radiation dose range from 102 to 5·106 Gy were investigated. Key words
polyethylene, fluoroelastomers, discs, films, frequency of 100 kHz, dielectric constant, dielectric dissipation factor, specific volume resistance, beta-radiation, dose dependence.
Yu.N. Loginov, Dr. Sc. (Engineering), Professor;
A.Yu. Postylyakov, Post-Graduate; Ural Federal University named after the first President of Russia B.N. Yeltsin.
The Stresses and deformations of torsion tested copper rod
The mode of deformation in the torsion test of copper rod was analyzed. Methods of analytic description of the test with the help of formulas from the theory of elasticity and plasticity were used for the purpose of the analysis. Real test experimental data were processed. The stress and deformation analysis was made using the finite element method. Deviations from the model of the classical process description were revealed. The differences lie in the inhomogeneous deformation distribution along the specimen length with local deformation fluctuations. A significant stress gradient was revealed along the radial coordinate of the specimen.
Copper, rod, stresses, deformations, torsion test, destruction.