1、BSI Standards PublicationBS EN 50083-8:2013Cable networks for televisionsignals, sound signals andinteractive services -Part 8: Electromagnetic compatibility fornetworksCopyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reprod
2、uction or networking permitted without license from IHS-,-,-BS EN 50083-8:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 50083-8:2013.It supersedes BS EN 50083-8:2002+A11:2008 which is withdrawn.The UK participation in its preparation was entrusted to Tech
3、nicalCommittee EPL/100/4, Cable distribution equipment and systems.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication
4、. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 78430 9ICS 33.060.40; 33.100.01Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Co
5、mmittee on 31 January 2014.Amendments issued since publicationDate Text affectedCopyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 50083-8:2013EUROPEAN ST
6、ANDARD EN 50083-8 NORME EUROPENNE EUROPISCHE NORM December 2013 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B - 1000 Brussels 2013 CEN
7、ELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50083-8:2013 E ICS 33.060.40; 33.100.01 Supersedes EN 50083-8:2002 + A11:2008 English version Cable networks for television signals, sound signals and interactive services - Part 8: Ele
8、ctromagnetic compatibility for networks Rseaux de distribution par cbles pour signaux de tlvision, signaux de radiodiffusion sonore et services interactifs - Partie 8: Compatibilit lectromagntique des rseaux Kabelnetze fr Fernsehsignale, Tonsignale und interaktive Dienste - Teil 8: Elektromagnetisch
9、e Vertrglichkeit von Kabelnetzen This European Standard was approved by CENELEC on 2013-11-11. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-t
10、o-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by tra
11、nslation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
12、 Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Copyr
13、ight European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 50083-8:2013EN 50083-8:2013 2 Contents Page Foreword . 4 1 Scope 5 1.1 General . 5 1.2 Specific scope of EN
14、50083-8 . 5 2 Normative references 6 3 Terms, definitions, symbols and abbreviations . 6 3.1 Terms and definitions . 6 3.2 Symbols 9 3.3 Abbreviations . 9 4 Methods of measurement . 10 4.1 Basic principles . 10 4.2 Radiation from cable networks 10 4.2.1 General . 10 4.2.2 Field strength method . 11
15、4.2.3 Subcarrier measurement procedure . 12 4.2.4 GPS based leakage detection system . 13 4.3 Immunity of cable networks . 13 4.3.1 General . 13 4.3.2 Measurement procedure for interference caused by high-power local transmitter . 13 5 Performance requirements . 14 5.1 General conditions 14 5.2 Radi
16、ation from cable networks and other sources 14 5.2.1 General . 14 5.2.2 Measurement of the total radiation 14 5.2.3 Measurement of narrowband radiation . 15 5.3 Immunity of cable networks . 16 Annex A (informative) A-deviations 18 A.1 United Kingdom . 18 A.1.1 Regulation 18 A.1.2 Principle . 18 A.1.
17、3 Equipment 18 A.1.4 Measurement frequencies 18 A.1.5 Procedure . 19 A.1.6 Expression of results 19 A.1.7 Permitted limits 20 A.1.8 Interpretation . 20 A.1.9 Bibliography of A.1 22 A.2 United Kingdom . 22 A.2.1 Regulation 22 A.2.2 Principle . 22 A.2.3 Equipment 22 A.2.4 Measurement frequencies 22 A.
18、2.5 Procedure . 23 A.2.6 Permitted limits 23 A.2.7 Interpretation . 24 A.2.8 Bibliography of A.2 24 A.3 Finland 25 A.4 Germany . 25 Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted withou
19、t license from IHS-,-,-BS EN 50083-8:2013 3 EN 50083-8:2013 Annex B (informative) Frequency ranges of typical safety of life services 28 Annex C (informative) Interdependence between the maximum allowable field strength and the minimum signal level at system outlet 29 Annex D (informative) Measureme
20、nts in other distances than the standard distance of 3 m 31 D.1 Measurement at a reduced distance below 3 m . 31 D.2 Measurement at measurement distances above 3 m 31 Annex E (informative) GPS based leakage detection system for cable networks . 32 E.1 General . 32 E.2 Automated data collection by dr
21、iving through the HFC network . 32 E.3 Tagging of the signal 32 E.4 Post processing the collected data and visualisation of leakages 32 E.5 On site location of the leak . 32 Bibliography 33 Figure A.1 Arrangement of test equipment for the measurement of radiation from complete systems 20 Table 1 Lim
22、its of total radiation . 15 Table 2 Narrowband radiation limits . 15 Table 3 Maximum expected field strength 16 Table 4 Required carrier-to-interference ratio 17 Table A.1 Radiation from complete systems: maximum permitted field strengths . 21 Table A.2 Distance correction factor . 22 Table A.3 Radi
23、ation from complete systems: maximum permitted field strengths . 24 Table A.4 Distance correction factor . 24 Table A.5 Protection of particular frequency ranges according to 3 of the Order 25 Table A.6 Field strength limit values at 3 m distance from line-bound telecommunications facilities and net
24、works 27 Table B.1 Frequency ranges of typical safety of life services 28 Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 50083-8:2013EN 50083-8:2013 4
25、 Foreword This document (EN 50083-8:2013) has been prepared by CLC/TC 209 “Cable networks for television signals, sound signals and interactive services“. The following dates are fixed: latest date by which this document has to be implemented at national level by publication of an identical national
26、 standard or by endorsement (dop) 2014-11-08 latest date by which the national standards conflicting with this document have to be withdrawn (dow) 2016-11-08 This document supersedes EN 50083-8:2002 + A11:2008. EN 50083-8:2013 includes the following significant technical changes with respect to EN 5
27、0083-8:2002 and EN 50083-8/A11:2008. EN 50083-8 with its methods of measurement and EMC performance requirements is explicitly dedicated to “under operating conditions (in situ)” to ensure the ongoing EMC integrity of cable networks. The harmonized standard EN 50529-2 is dedicated for the provision
28、of presumption of conformance to the EMC Directive. The first intermediate frequency range (1stIF range) for satellite signal transmission was extended to cover now frequencies from 950 MHz up to 3 500 MHz. The method of measurement and the requirements for in-band immunity were extended taking into
29、 account the new EMC environment due to the allocation of broadband wireless services in the frequency band 790 MHz to 862 MHz. As a consequence, the limits of in-band immunity were specified for analogue and additionally for digital signals in this frequency range. The substitution method of measur
30、ement (power method) was deleted. EMC measurements below 30 MHz were deleted New Annex D “Measurement in other distances than the standard distance of 3 m” New Annex E “GPS based leakage detection system for cable networks” Attention is drawn to the possibility that some of the elements of this docu
31、ment may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted
32、without license from IHS-,-,-BS EN 50083-8:2013 5 EN 50083-8:2013 1 Scope 1.1 General Standards of the EN 50083 and EN 60728 series deal with cable networks including equipment and associated methods of measurement for headend reception, processing and distribution of television and sound signals an
33、d for processing, interfacing and transmitting all kinds of data signals for interactive services using all applicable transmission media. These signals are typically transmitted in networks by frequency-multiplexing techniques. This includes for instance regional and local broadband cable networks,
34、 extended satellite and terrestrial television distribution systems, individual satellite and terrestrial television receiving systems, and all kinds of equipment, systems and installations used in such cable networks, distribution and receiving systems. The extent of this standardization work is fr
35、om the antennas and/or special signal source inputs to the headend or other interface points to the network up to the terminal input of the customer premises equipment. The standardization work will consider coexistence with users of the RF spectrum in wired and wireless transmission systems. The st
36、andardization of any user terminals (i.e. tuners, receivers, decoders, multimedia terminals etc.) as well as of any coaxial, balanced and optical cables and accessories thereof is excluded. 1.2 Specific scope of EN 50083-8 This European Standard applies to the radiation characteristics and immunity
37、to electromagnetic disturbance of cable networks for television signals, sound signals and interactive services and covers the frequency range 0,15 MHz to 3,5 GHz. It should be noted that measurements below 30 MHz are not generally considered useful in the context of cable networks and are difficult
38、 to perform in practice. Application of the harmonized standard EN 50529-2 provides presumption of conformance to the EMC Directive. Therefore, to fulfil the requirements of EN 50529-2, it is necessary to use cable network equipment that satisfies the requirements of EN 50083-2 regarding limits of r
39、adiation and of immunity to external fields. This European Standard specifies methods of measurement and EMC performance requirements under operating conditions (in situ) to ensure the ongoing EMC integrity of cable networks. Cable networks beyond the system outlets (e.g. the receiver lead, in simpl
40、est terms) which begin at the system outlet and end at the input to the subscribers terminal equipment are not covered by the standard EN 50083-8. Requirements for the electromagnetic compatibility of receiver leads are laid down in EN 60966-2-4, EN 60966-2-5 and EN 60966-2-6. Cable networks and a w
41、ide range of radio services have to coexist. These include for example the emergency services, safety of life, broadcasting, aeronautical, radio navigation services and also land mobile, amateur and cellular radio services. Frequency ranges of typical safety of life services are listed in Annex B. A
42、dditional protection for certain services may be required by national regulations. Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 50083-8:2013EN 50083
43、-8:2013 6 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including
44、 any amendments) applies. EN 50083 (all parts), Cable networks for television signals, sound signals and interactive services EN 50083-2, Cable networks for television signals, sound signals and interactive services Part 2: Electromagnetic compatibility for equipment EN 50117 (all parts), Coaxial ca
45、bles EN 50529-2, EMC Network Standard Part 2: Wire-line telecommunications networks using coaxial cables EN 55016-1-1, Specification for radio disturbance and immunity measuring apparatus and methods Part 1-1: Radio disturbance and immunity measuring apparatus Measuring apparatus (CISPR 16-1-1) EN 5
46、5016-1-4, Specification for radio disturbance and immunity measuring apparatus and methods Part 1-4: Radio disturbance and immunity measuring apparatus Antennas and test sites for radiated disturbance measurements (CISPR 16-1-4) EN 60728 (all parts), Cable networks for television signals, sound sign
47、als and interactive services (IEC 60728, all parts) EN 60728-1, Cable networks for television signals, sound signals and interactive services Part 1: System performance of forward paths (IEC 60728-1) IEC 60050-161, International Electrotechnical Vocabulary Chapter 161: Electromagnetic compatibility
48、3 Terms, definitions, symbols and abbreviations 3.1 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 60050-161 and the following apply. NOTE The most important definitions of IEC 60050-161 are repeated hereafter with the IEV-numbering given in brackets. In addition, some more specific definitions, used in this European Standard, are listed. 3.1.1 building penetration loss ability of buildings, in which networks for distribution of television and sound are located, to attenuate the influence of electromagnetic fields from outside the bui
copyright@ 2008-2019 麦多课文库（www.mydoc123.com）网站版权所有
备案/许可证编号：苏ICP备17064731号-1