“CABLE AND WIRES” JOURNAL - 2023 #1
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SCIENCE AND TECHNOLOGY
DOI 10.52350/2072215Х_2023_1_3
M.Yu. Shuvalov, Dr. Sc. (Engineering), Director of Research Area – Division Manager of JSC VNIIKP, full member of the RF Academy of Electrotechnical Sciences
Abstract. The article describes the experience of using fluorescence microscopy and microspectrofluorimetry (registration of fluorescence spectra with a microscope) in order to solve the following problems: detection and preliminary identification of defects – foreign inclusions in the cross-linked polyethylene cable insulation, detection and quantitative analysis of water treeing in the cross-linked polyethylene and ethylene propylene rubber, distinction of an electrical tree initiating in a water tree, evaluation of the material mechanical degradation degree (microcrack accumulation), diagnostics of the oil-filled cable ageing. A mathematical approach is proposed for the modeling of polymer cable material ageing and degradation in the terms of the electronic spectra evolution described by a partial differential equation similar to the energy equation.
Key words: fluorescence microscopy, microspectrofluorimetry, foreign inclusion, water tree, electrical tree, ethylene propylene rubber, oil-filled cable, thermal ageing, energy equation
DOI 10.52350/2072215Х_2023_1_16
STUDY OF OPTICAL MICROCABLE PERFORMANCE UNDER LONG-TERM EXPOSURE TO SEAWATER
I.A. Ovchinnikova, Dr. Sc. (Engineering), Director of Research Area, JSC VNIIKP, full member of the RF Academy of Electrotechnical Sciences;
E.B. Vasiliev, Cand. Sc. (Economics), Deputy General Director, JSC VNIIKP, full member of the RF Academy of Electrotechnical Sciences;
E.Ya. Gecha, Dr. Sc. (Engineering), Chief Research Scientist, JSC VNIIKP, full member of the RF Academy of Electrotechnical Sciences;
A.G. Koryakin, Cand. Sc. (Engineering), Deputy Division Manager, JSC VNIIKP;
E.D. Terekhov, Principal Testing Engineer, JSC VNIIKP;
A.S. Khakhichev, Testing Engineer, JSC VNIIKP
Abstract. The article presents the results of a study of three different designs of optical microcables for resistance to prolonged exposure to a saline solution that simulates seawater with a salinity of 380 ‰. Graphs of the optical fiber attenuation coefficient dependence on the time of the microcable exposure in the salt solution are given. The photographs of the sheath and optical fiber surfaces, obtained using a microscope six months after the samples were extracted from the saline solution, are presented. The results of the study of the effect of the salt crystals formed during the microcable exposure in the salt solution that were obtained using the Mandelstam-Brillouin forced scattering analyzer are also given. The studies have confirmed the performance capabilities of optical microcables used in seawater.
Key words: optical microcable, optical fiber, seawater, saline, salinity, attenuation coefficient, efficiency, polyacrylate, Mandelstam-Brillouin scattering, deformation
PAGES OF HISTORY
AT THE BEGINNING THERE WAS ELECTRICITY
ESSAYS ON THE RUSSIAN CABLE INDUSTRY
E.B. Vasiliev, Cand. Sc. (Economics), Chairman of Board of Directors, JSC VNIIKP, full member of the RF Academy of Electrotechnical Sciences
Abstract. A historical sketch about the origin of the cable industry in Russia.
Key words: P.L. Schilling's electric telegraph, gutta-percha armoured cable, electric arc phenomenon, "The Main Telegraphic Workshop", "Siemens and Galske Trading House", "Yablochkov candles", "Russian production of insulated conductors of electricity named after the Podobedovs, Lebourde and Co.", "Vladimir Alekseev, P. Vishnyakov and A. Shamshin Partnership "
INDUSTRY NEWS
MEETING OF THE ANTI-COUNTERFEIT COMMITTEE
KNOWLWDGE IS POWER, PROGRESS AND DEVELOPMENT
OUR CONGRATULATIONS TO THE JSC VNIIKP
OUR CONGRATULATIONS TO MICHAIL KUZMICH KAMENSKY
OH SPORT, YOU ARE PEACE, HEALTH, STRENGTH
JUBILEES
N.N. KHRENKOV celebrated his 85th birthday
A.I. ROIKH celebrated his 75th birthday
V.F. KLYUCHNIKOV celebrated his 70th birthday
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