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

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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Date:2017
Main Authors: Bezprozvannych, G. V., Mirchuk, I. A.
Format: Article
Language:English
Ukrainian
Published: National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine 2017
Subjects:
cables based on twisted pairs for shipbuilding
accelerated aging
hygroscopic moistening
thermal aging
partial capacitance
tangent of the dielectric loss angle
service life
621.319
Online Access:http://eie.khpi.edu.ua/article/view/2074-272X.2017.5.08
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Journal Title:Electrical Engineering & Electromechanics

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Electrical Engineering & Electromechanics
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spelling eiekhpieduua-article-1124822017-11-29T20:34:18Z THE EVALUATION OF POSSIBILITY OF NORMAL OPERATION OF CABLES BASED ON TWISTED PAIRS WITH PVC JACKET UNDER THE CONDITIONS OF HIGH HUMIDITY AND TEMPERATURE ОЦЕНКА ВОЗМОЖНОСТИ НОРМАЛЬНОЙ ЭКСПЛУАТАЦИИ КАБЕЛЕЙ НА ОСНОВЕ ВИТЫХ ПАР В ПОЛИВИНИЛХЛОРИДНОЙ ЗАЩИТНОЙ ОБОЛОЧКЕ В УСЛОВИЯХ ПОВЫШЕННОЙ ВЛАЖНОСТИ И ТЕМПЕРАТУРЫ Bezprozvannych, G. V. Mirchuk, I. A. cables based on twisted pairs for shipbuilding accelerated aging hygroscopic moistening thermal aging partial capacitance tangent of the dielectric loss angle service life 621.319 кабели на основе витых пар для судостроения ускоренное старение гигроскопическое увлажнение тепловое старение частичные емкости тангенс угла диэлектрических потерь срок службы 621.319 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. Представлены результаты ускоренного старения в условиях повышенной влажности и температуры образца неэкранированного кабеля на основе витых пар с полиэтиленовой термопластичной изоляцией в защитной оболочке на основе поливинилхлоридного пластиката. Оценка устойчивости кабеля к действию внешних воздействующих факторов выполнена по частичным емкостям и тангенсу угла диэлектрических потерь изоляционных промежутков между жилами. Конструктивная особенность кабеля приводит к группированию частичных емкостей в четыре характерные области. Установлена динамика изменений диэлектрических параметров в процессе гигроскопического увлажнения, естественной сушки и теплового старения при температуре 90 °С образца кабеля. Определены коэффициенты парной корреляции между диэлектрическими параметрами в исходном состоянии и после внешних воздействующих факторов. Показано, что конструкция кабеля устойчива к действию повышенной влажности и температуры. National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine 2017-10-21 Article Article Peer-reviewed Article application/pdf application/pdf http://eie.khpi.edu.ua/article/view/2074-272X.2017.5.08 10.20998/2074-272X.2017.5.08 Electrical Engineering & Electromechanics; No. 5 (2017); 51-54 Электротехника и Электромеханика; № 5 (2017); 51-54 Електротехніка і Електромеханіка; № 5 (2017); 51-54 2309-3404 2074-272X en uk http://eie.khpi.edu.ua/article/view/2074-272X.2017.5.08/107217 http://eie.khpi.edu.ua/article/view/2074-272X.2017.5.08/107218 Copyright (c) 2017 G. V. Bezprozvannych, I. A. Mirchuk https://creativecommons.org/licenses/by-nc/4.0
institution Electrical Engineering & Electromechanics
baseUrl_str
datestamp_date 2017-11-29T20:34:18Z
collection OJS
language English
Ukrainian
topic cables based on twisted pairs for shipbuilding
accelerated aging
hygroscopic moistening
thermal aging
partial capacitance
tangent of the dielectric loss angle
service life
621.319
spellingShingle cables based on twisted pairs for shipbuilding
accelerated aging
hygroscopic moistening
thermal aging
partial capacitance
tangent of the dielectric loss angle
service life
621.319
Bezprozvannych, G. V.
Mirchuk, I. A.
THE EVALUATION OF POSSIBILITY OF NORMAL OPERATION OF CABLES BASED ON TWISTED PAIRS WITH PVC JACKET UNDER THE CONDITIONS OF HIGH HUMIDITY AND TEMPERATURE
topic_facet cables based on twisted pairs for shipbuilding
accelerated aging
hygroscopic moistening
thermal aging
partial capacitance
tangent of the dielectric loss angle
service life
621.319
кабели на основе витых пар для судостроения
ускоренное старение
гигроскопическое увлажнение
тепловое старение
частичные емкости
тангенс угла диэлектрических потерь
срок службы
621.319
format Article
author Bezprozvannych, G. V.
Mirchuk, I. A.
author_facet Bezprozvannych, G. V.
Mirchuk, I. A.
author_sort Bezprozvannych, G. V.
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
title_alt ОЦЕНКА ВОЗМОЖНОСТИ НОРМАЛЬНОЙ ЭКСПЛУАТАЦИИ КАБЕЛЕЙ НА ОСНОВЕ ВИТЫХ ПАР В ПОЛИВИНИЛХЛОРИДНОЙ ЗАЩИТНОЙ ОБОЛОЧКЕ В УСЛОВИЯХ ПОВЫШЕННОЙ ВЛАЖНОСТИ И ТЕМПЕРАТУРЫ
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.
publisher National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine
publishDate 2017
url http://eie.khpi.edu.ua/article/view/2074-272X.2017.5.08
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first_indexed 2025-07-17T11:46:48Z
last_indexed 2025-07-17T11:46:48Z
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