BS EN 61643-351:2017 - Components for low-voltage surge protective devices. Performance requirements and test methods for telecommunications and signalling network surge isolation transformers (SIT)

BS EN 61643-351:2017

Components for low-voltage surge protective devices. Performance requirements and test methods for telecommunications and signalling network surge isolation transformers (SIT)

Status : Current, Under review   Published : February 2017

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IEC 61643-351:2016 defines test circuits and test methods for determining and verifying the SIT surge parameters. Preferred performance values for key parameters are given. Surge isolation transformers (SITs) are used for signal transformer applications with signal levels up to 400 V peak to peak. SITs are transformers, with or without an internal-winding screen, with a rated impulse withstand voltage greater than the peak voltage of the expected common-mode surge environment. SITs are applicable to components for surge protection against indirect and direct effects of lightning or other transient overvoltage. SITs are used to mitigate the onward propagation of common-mode voltage surges. This part of IEC 61643 does not cover SIT operation under differential-mode lightning surge conditions. Keywords: Surge isolation transformers (SITs)




Standard NumberBS EN 61643-351:2017
TitleComponents for low-voltage surge protective devices. Performance requirements and test methods for telecommunications and signalling network surge isolation transformers (SIT)
StatusCurrent, Under review
Publication Date28 February 2017
Normative References(Required to achieve compliance to this standard)EN 60721-3-3, IEC/TR 60664-2-1:2011, IEC 60721-3-3
Informative References(Provided for Information)EN 61558-2-4, IEC 61558-2-4, IEC/TR 61340-1:2012, ITU-T K.21, EN 60068-2-2:2007, JEC0301, IEC 60076-1, IEC 61558-1, IEC 61340-4-8, ISO/IEC 11801, EN 60060-1:2010, EN 61340-4-8, IEC 60068-2-1:2007, EN 61558-1, EN 60068-2-1:2007, IEC 60989, IEC 61558-2-6, ISO/IEC/IEEE 8802-3:2014, IEEE PC62.69/D4, ITU-T K.95, ITU-T K.66, EN 60721-3-9:1993, IEC 60068-2-2:2007, EN 61558-2-6, IEC 60060-1:2010, EN 60076-1, IEC 60721-3-9:1993
International RelationshipsEN 61643-351:2017,IEC 61643-351:2016
Draft Superseded By14/30297601 DC
DescriptorsSurges (electrical), Thermal resistance, Ratings, Isolating transformers, Overvoltage protection, Electrical insulation, Electric screens, Low voltage, Transformers, Overvoltage, Circuits, Safety devices, Lightning, Surge protection, Low-voltage equipment
ICS33.040.99
Title in FrenchComposants pour parafoudres basse tension. Exigences de performance et méthodes d'essai pour les transformateurs d'isolement contre les surtensions dans les réseaux de signalisation et de télécommunications
Title in GermanBauelemente für Überspannungsschutzgeräte für Niederspannung. Leistungsanforderungen sowie Prüfschaltungen und -verfahren für Blitzisoliertransformatoren in Telekommunikations- und signalverarbeitenden Netzen
CommitteePEL/37/1
ISBN978 0 580 85903 8
PublisherBSI
FormatA4
DeliveryYes
Pages32
File Size2.217 MB
Price£182.00


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