|Содержание журнала "Кабели и провода" №6-2020 английское
NEW YEAR GREETING FROM I.B. PESHKOV, EDITOR-IN-CHIEF
SCIENCE AND TECHNOLOGY
DESIGN DEVELOPMENT AND TESTING OF 20 and 35 kV HEAT-SHRINKABLE
TERMINATIONS AND JOINTS
V.S. Vagin, General Director of JSC “MZEI”;
S.S. Vetlugaev, Cand. Sc. (Engineering), Research Scientist, OJSC VNIIKP;
D.A. Guk, Head of High-Voltage Test Centre of OJSC VNIIKP;
L.E. Makarov, Cand. Sc. (Engineering), Leading Research Scientist, OJSC VNIIKP;
V.A. Naumov, Deputy General Director for Production of
M.A. Potapov, Leading Engineer, JSC “MZEI”;
P.V. Fursov, Cand. Sc. (Engineering), Leading Research Scientist, OJSC VNIIKP;
Abstract. The article presents the basic results of OJSC VNIIKP and JSC “MZEI” joint investigations of materials and design development of accessories for 35 kV XLPE cables.
Consideration is given to the compliance of the developed joints and terminations with the requirements of the state standard and the PAO FGC UES (Federal Grid Company of Unified Energy System) standards.
Key words: terminations; joints; power cable accessories; partial discharges; tracking resistance; climatic tests.
HEAT EXCHANGE IN CABLE PENETRATIONS UNDER A LONG-TERM PERMISSIBLE LOAD CURRENT
A.A. Varlamkin, head of the sector, FGBU VNIIPO of EMERCOM of Russia;
I.R. Khasanov, chief researcher, Doctor of Sciences, FGBU VNIIPO of EMERCOM of Russia
Abstract. A mathematical model of heat transfer in cable penetrations under a long-term permissible load current is proposed. A comparison of numerical and experimental values of temperature and time dependences under current load for various structures of cable penetrations is made. Numerical values of temperature fields under a current load for a cable laid in the air, as well as in three typical cable penetrations, are obtained. The regularities of temperature changes in the cable passage structural elements with time are revealed. The most dangerous type of cable penetration is determined, for which the time values of thermal damage to the cable and the occurrence of a short circuit are estimated. Calculations of long-term permissible load currents for samples of the considered cable penetrations are made.
Key words: cable penetrations; cables; fire hazard; electrical safety; heat exchange; long-term permissible load current; numerical modeling.
THE USE OF OPTICAL FIBER SPLITTERS IN TELECOM NETWORKS WITH WAVELENGTH DIVISION MULTIPLEXING
P.V. Bazakutsa, Cand. Sc. (Physics and Mathematics), Director of Ltd. “OPTEL”;
M.A. Boev, Dr. Sc. (Engineering), Professor, NRU MEI;
A.V. Nikitin, postgraduate student, NRU MEI
Abstract. The article deals with the types and parameters of optical fiber splitters which serve as a connecting link for optical cables when the telecom networks are built. An experimental investigation of spectral characteristics of FBT (Fused Biconical Taper) and PLC (Planar Lightwave Circuit) splitters was carried out. The measurement results of planar optical splitters confirm that their characteristics in the 1260–1660 nm spectral range correspond to the recommendations of the International Telecommunication Union (ITU). The test results prove that FBT type splitters with certain design parameters also correspond to the ITU recommendations and can be used in wavelength multiplex systems of CWDM, DWDM type and for the construction of passive optical networks (PON).
Key words: optical telecommunication networks; optical fiber; optical splitters; fusion (FBT) optical splitters; passive optical networks (PON); wavelength multiplex systems; spectral characteristics of optical splitters.
INSTALLATION OF 500 kV CABLE LINES WITH POLYETHYLENE INSULATED CABLES
AT BUREISKAYA HEP, ZAGORSKAYA PSPP, BOGUCHANSKAYA HEP, 500 kV AERIAL
CABLE LINE “ZAPADNAYA” SUBSTATION – “OCHAKOVO” SUBSTATION
A.V. Grin’, Leading Design Engineer,
Ltd. “Estralin PS”;
A.S. Mneka, Technical Director of
Ltd. “Estralin PS”
Abstract. 500 kV cable lines (CL) with polyethylene insulated cables have been installed in Russia since 2004. Designing, installation and testing of such cable lines are associated with some specific features. The article presents the generalized experience of installation of 500 kV cable lines with polyethylene insulated cables at Bureiskaya HEP, Zagorskaya PSPP, Boguchanskaya HEP, 500 kV aerial cable line “Zapadnaya” substation – “Ochakovo” substation.
Key words: 500 kV cable lines, 500 kV polyethylene insulated cables, installation of 500 kV cable lines.
CABLE INDUSTRY UNDER THE CORONAVIRUS CONDITIONS
(BASED ON THE MATERIALS OF THE 76-th GENERAL MEETING OF
THE ELECTROCABLE ASSOCIATION)
Rosendahl INTRODUCES THEIR NEW RODS1250H DOUBLE SPOOLER
“SpetsTek” and “Softver Labs” INTRODUCE A PRODUCTION CONTROL SYSTEM
AT THE “Bi Pitron” plant
GENERAL MEETING OF THE ACADEMY OF ELECTROTECHNICAL SCIENCES THE RF
THE INTERNATIONAL INTERCABLE ASSOCIATION CELEBRATES ITS 30th
I.B. Peshkov, Dr. Sc. (Engineering), Professor, the President of International Association «Intercable»