INCREASING NOISE IMMUNITY OF CABLES FOR FIRE PROTECTION SYSTEMS

Introduction. Technical means of fire protection systems are capable of operating at data rates from tens to hundreds of Kbit/s with components of a digital signal in the frequency spectrum up to several tens of MHz. Appropriate cable infrastructure with a high level of noise immunity is required to...

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Autores principales:	G. V. Bezprozvannych, O. A. Pushkar
Formato:	article
Lenguaje:	EN RU UK
Publicado:	National Technical University "Kharkiv Polytechnic Institute" 2020
Materias:	fire protection systems electromagnetic influence near end crosstalk twisted pairs unshielded and shielded cables attenuation coefficient Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/2c5c0cb70e834e4db9d54d7bced4c0bb
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spelling	oai:doaj.org-article:2c5c0cb70e834e4db9d54d7bced4c0bb2021-12-02T18:42:04ZINCREASING NOISE IMMUNITY OF CABLES FOR FIRE PROTECTION SYSTEMS10.20998/2074-272X.2020.4.072074-272X2309-3404https://doaj.org/article/2c5c0cb70e834e4db9d54d7bced4c0bb2020-08-01T00:00:00Zhttp://eie.khpi.edu.ua/article/view/2074-272X.2020.4.07/210581https://doaj.org/toc/2074-272Xhttps://doaj.org/toc/2309-3404Introduction. Technical means of fire protection systems are capable of operating at data rates from tens to hundreds of Kbit/s with components of a digital signal in the frequency spectrum up to several tens of MHz. Appropriate cable infrastructure with a high level of noise immunity is required to transmit broadband digital signals. Purpose. Substantiation of ways to increase noise immunity of cables based on twisted pairs for modern fire protection systems with the ability to transmit digital signals in the frequency spectrum up to 100 MHz. Methodology. A comparison is made of the influence of the twisting step of pairs in unshielded 4-pair and multi-pair shielded balanced cables on the parameters of electromagnetic effects. It has been experimentally shown that twisting each pair with different steps provides a higher level of noise immunity of cables based on twisted pairs. Practical value. The frequency dependencies of the near end crosstalk in 10-, 30- and 4-pair balanced cables are shown. The influence of the common shield on the attenuation coefficient of the shielded 4-pair cable is established. G. V. BezprozvannychO. A. PushkarNational Technical University "Kharkiv Polytechnic Institute"articlefire protection systemselectromagnetic influencenear end crosstalktwisted pairsunshielded and shielded cablesattenuation coefficientElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENRUUKElectrical engineering & Electromechanics, Iss 4, Pp 54-58 (2020)
institution	DOAJ
collection	DOAJ
language	EN RU UK
topic	fire protection systems electromagnetic influence near end crosstalk twisted pairs unshielded and shielded cables attenuation coefficient Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	fire protection systems electromagnetic influence near end crosstalk twisted pairs unshielded and shielded cables attenuation coefficient Electrical engineering. Electronics. Nuclear engineering TK1-9971 G. V. Bezprozvannych O. A. Pushkar INCREASING NOISE IMMUNITY OF CABLES FOR FIRE PROTECTION SYSTEMS
description	Introduction. Technical means of fire protection systems are capable of operating at data rates from tens to hundreds of Kbit/s with components of a digital signal in the frequency spectrum up to several tens of MHz. Appropriate cable infrastructure with a high level of noise immunity is required to transmit broadband digital signals. Purpose. Substantiation of ways to increase noise immunity of cables based on twisted pairs for modern fire protection systems with the ability to transmit digital signals in the frequency spectrum up to 100 MHz. Methodology. A comparison is made of the influence of the twisting step of pairs in unshielded 4-pair and multi-pair shielded balanced cables on the parameters of electromagnetic effects. It has been experimentally shown that twisting each pair with different steps provides a higher level of noise immunity of cables based on twisted pairs. Practical value. The frequency dependencies of the near end crosstalk in 10-, 30- and 4-pair balanced cables are shown. The influence of the common shield on the attenuation coefficient of the shielded 4-pair cable is established.
format	article
author	G. V. Bezprozvannych O. A. Pushkar
author_facet	G. V. Bezprozvannych O. A. Pushkar
author_sort	G. V. Bezprozvannych
title	INCREASING NOISE IMMUNITY OF CABLES FOR FIRE PROTECTION SYSTEMS
title_short	INCREASING NOISE IMMUNITY OF CABLES FOR FIRE PROTECTION SYSTEMS
title_full	INCREASING NOISE IMMUNITY OF CABLES FOR FIRE PROTECTION SYSTEMS
title_fullStr	INCREASING NOISE IMMUNITY OF CABLES FOR FIRE PROTECTION SYSTEMS
title_full_unstemmed	INCREASING NOISE IMMUNITY OF CABLES FOR FIRE PROTECTION SYSTEMS
title_sort	increasing noise immunity of cables for fire protection systems
publisher	National Technical University "Kharkiv Polytechnic Institute"
publishDate	2020
url	https://doaj.org/article/2c5c0cb70e834e4db9d54d7bced4c0bb
work_keys_str_mv	AT gvbezprozvannych increasingnoiseimmunityofcablesforfireprotectionsystems AT oapushkar increasingnoiseimmunityofcablesforfireprotectionsystems
_version_	1718377729829634048

INCREASING NOISE IMMUNITY OF CABLES FOR FIRE PROTECTION SYSTEMS

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