THE EVALUATION OF POSSIBILITY OF NORMAL OPERATION OF CABLES BASED ON TWISTED PAIRS WITH PVC JACKET UNDER THE CONDITIONS OF HIGH HUMIDITY AND TEMPERATURE

Introduction. Development of cables for structured cabling systems based on twisted pairs for shipbuilding is carried out in two main directions: increasing the fire safety of cables and increasing the long-term permissible operating temperature by using new, more heat-resistant, electrical insulati...

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Autores principales:	G. V. Bezprozvannych, I. A. Mirchuk
Formato:	article
Lenguaje:	EN RU UK
Publicado:	National Technical University "Kharkiv Polytechnic Institute" 2017
Materias:	cables based on twisted pairs for shipbuilding accelerated aging hygroscopic moistening thermal aging partial capacitance tangent of the dielectric loss angle service life Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/d7dbc929f63d4369b0c900f8666a6da7
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spelling	oai:doaj.org-article:d7dbc929f63d4369b0c900f8666a6da72021-12-02T18:18:19ZTHE EVALUATION OF POSSIBILITY OF NORMAL OPERATION OF CABLES BASED ON TWISTED PAIRS WITH PVC JACKET UNDER THE CONDITIONS OF HIGH HUMIDITY AND TEMPERATURE10.20998/2074-272X.2017.5.082074-272X2309-3404https://doaj.org/article/d7dbc929f63d4369b0c900f8666a6da72017-10-01T00:00:00Zhttp://eie.khpi.edu.ua/article/view/2074-272X.2017.5.08/107217https://doaj.org/toc/2074-272Xhttps://doaj.org/toc/2309-3404Introduction. Development of cables for structured cabling systems based on twisted pairs for shipbuilding is carried out in two main directions: increasing the fire safety of cables and increasing the long-term permissible operating temperature by using new, more heat-resistant, electrical insulating materials. Purpose. Substantiation of the possibility of unshielded cables on the basis of unshielded twisted pairs with thermoplastic polyethylene insulation in PVC protective jacket in conditions of high humidity and high operating temperatures on the basis of the results of accelerated aging. Methodology. The cycle of aging under conditions of increased humidity is performed for 336 hours. Then the sample was under natural drying conditions for 1440 hours. Thermal aging in a thermostat at 90 °C was carried out in two stages: first – for 206 hours, the second – for 260 hours. In the initial state and after accelerated aging, measurements of the capacitance and tangent of the dielectric loss angle of all the insulating gaps at frequencies of 100 Hz, 1 and 10 kHz were performed. Results. According to the results of accelerated aging under conditions of high humidity and temperature, it is established that the design of an unshielded cable based on unshielded twisted pairs with thermoplastic polyethylene insulation in a protective coating based on PVC-plastic is resistant to external influencing factors. Practical value. The prolonged holding at temperature of 90 °C is equivalent to operation at temperature of 40 °C for 6.8 years. At higher operating temperatures, the lifetime of the cable is significantly reduced.G. V. BezprozvannychI. A. MirchukNational Technical University "Kharkiv Polytechnic Institute"articlecables based on twisted pairs for shipbuildingaccelerated aginghygroscopic moisteningthermal agingpartial capacitancetangent of the dielectric loss angleservice lifeElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENRUUKElectrical engineering & Electromechanics, Iss 5, Pp 51-54 (2017)
institution	DOAJ
collection	DOAJ
language	EN RU UK
topic	cables based on twisted pairs for shipbuilding accelerated aging hygroscopic moistening thermal aging partial capacitance tangent of the dielectric loss angle service life Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	cables based on twisted pairs for shipbuilding accelerated aging hygroscopic moistening thermal aging partial capacitance tangent of the dielectric loss angle service life Electrical engineering. Electronics. Nuclear engineering TK1-9971 G. V. Bezprozvannych I. A. Mirchuk THE EVALUATION OF POSSIBILITY OF NORMAL OPERATION OF CABLES BASED ON TWISTED PAIRS WITH PVC JACKET UNDER THE CONDITIONS OF HIGH HUMIDITY AND TEMPERATURE
description	Introduction. Development of cables for structured cabling systems based on twisted pairs for shipbuilding is carried out in two main directions: increasing the fire safety of cables and increasing the long-term permissible operating temperature by using new, more heat-resistant, electrical insulating materials. Purpose. Substantiation of the possibility of unshielded cables on the basis of unshielded twisted pairs with thermoplastic polyethylene insulation in PVC protective jacket in conditions of high humidity and high operating temperatures on the basis of the results of accelerated aging. Methodology. The cycle of aging under conditions of increased humidity is performed for 336 hours. Then the sample was under natural drying conditions for 1440 hours. Thermal aging in a thermostat at 90 °C was carried out in two stages: first – for 206 hours, the second – for 260 hours. In the initial state and after accelerated aging, measurements of the capacitance and tangent of the dielectric loss angle of all the insulating gaps at frequencies of 100 Hz, 1 and 10 kHz were performed. Results. According to the results of accelerated aging under conditions of high humidity and temperature, it is established that the design of an unshielded cable based on unshielded twisted pairs with thermoplastic polyethylene insulation in a protective coating based on PVC-plastic is resistant to external influencing factors. Practical value. The prolonged holding at temperature of 90 °C is equivalent to operation at temperature of 40 °C for 6.8 years. At higher operating temperatures, the lifetime of the cable is significantly reduced.
format	article
author	G. V. Bezprozvannych I. A. Mirchuk
author_facet	G. V. Bezprozvannych I. A. Mirchuk
author_sort	G. V. Bezprozvannych
title	THE EVALUATION OF POSSIBILITY OF NORMAL OPERATION OF CABLES BASED ON TWISTED PAIRS WITH PVC JACKET UNDER THE CONDITIONS OF HIGH HUMIDITY AND TEMPERATURE
title_short	THE EVALUATION OF POSSIBILITY OF NORMAL OPERATION OF CABLES BASED ON TWISTED PAIRS WITH PVC JACKET UNDER THE CONDITIONS OF HIGH HUMIDITY AND TEMPERATURE
title_full	THE EVALUATION OF POSSIBILITY OF NORMAL OPERATION OF CABLES BASED ON TWISTED PAIRS WITH PVC JACKET UNDER THE CONDITIONS OF HIGH HUMIDITY AND TEMPERATURE
title_fullStr	THE EVALUATION OF POSSIBILITY OF NORMAL OPERATION OF CABLES BASED ON TWISTED PAIRS WITH PVC JACKET UNDER THE CONDITIONS OF HIGH HUMIDITY AND TEMPERATURE
title_full_unstemmed	THE EVALUATION OF POSSIBILITY OF NORMAL OPERATION OF CABLES BASED ON TWISTED PAIRS WITH PVC JACKET UNDER THE CONDITIONS OF HIGH HUMIDITY AND TEMPERATURE
title_sort	evaluation of possibility of normal operation of cables based on twisted pairs with pvc jacket under the conditions of high humidity and temperature
publisher	National Technical University "Kharkiv Polytechnic Institute"
publishDate	2017
url	https://doaj.org/article/d7dbc929f63d4369b0c900f8666a6da7
work_keys_str_mv	AT gvbezprozvannych theevaluationofpossibilityofnormaloperationofcablesbasedontwistedpairswithpvcjacketundertheconditionsofhighhumidityandtemperature AT iamirchuk theevaluationofpossibilityofnormaloperationofcablesbasedontwistedpairswithpvcjacketundertheconditionsofhighhumidityandtemperature AT gvbezprozvannych evaluationofpossibilityofnormaloperationofcablesbasedontwistedpairswithpvcjacketundertheconditionsofhighhumidityandtemperature AT iamirchuk evaluationofpossibilityofnormaloperationofcablesbasedontwistedpairswithpvcjacketundertheconditionsofhighhumidityandtemperature
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THE EVALUATION OF POSSIBILITY OF NORMAL OPERATION OF CABLES BASED ON TWISTED PAIRS WITH PVC JACKET UNDER THE CONDITIONS OF HIGH HUMIDITY AND TEMPERATURE

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