1、BSI Standards PublicationBS EN 50290-4-1:2014Communication cablesPart 4-1: General considerations for the useof cables Environmental conditions andsafety aspectsBS EN 50290-4-1:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 50290-4-1:2014. It supersedes BS
2、 EN 50290-4-1:2002 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee EPL/46, Cables, wires and waveguides, radio frequency connectors and accessories for communication and signalling.A list of organizations represented on this committee can be obtained o
3、n request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2015. Published by BSI Standards Limited 2015ISBN 978 0 580 80200 3ICS 29.060.20; 33.120.10Complian
4、ce with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2015.Amendments/corrigenda issued since publicationDate Text affectedBS EN 50290-4-1:2014EUROPEAN STANDARD NOR
5、ME EUROPENNE EUROPISCHE NORM EN 50290-4-1 December 2014 ICS 33.120.10 Supersedes EN 50290-4-1:2001 English Version Communication cables - Part 4-1: General considerations for the use of cables - Environmental conditions and safety aspects Kommunikationskabel - Teil 4-1: Allgemeine Betrachtungen fr d
6、ie Anwendung der Kabel - Bedingung der Umgebung und Sicherheitsaspekte This European Standard was approved by CENELEC on 2013-09-16. 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
7、 standard without any alteration. Up-to-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 ver
8、sion in any other language made by translation 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
9、, Croatia, Cyprus, the Czech Republic, 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
10、, Turkey and the United Kingdom. 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 2014 CENELEC All rights of exploitation in any fo
11、rm and by any means reserved worldwide for CENELEC Members. Ref. No. EN 50290-4-1:2014 E BS EN 50290-4-1:2014EN 50290-4-1:2014 - 2 - Contents Foreword 3 1 Scope . 4 2 Normative references 4 3 Terms and definitions . 4 4 Environmental conditions and installation aspects 4 4.1 General 4 4.2 Relationsh
12、ip with EC directives 5 4.2.1 EMC Directive 5 4.2.2 Low voltage directive . 5 4.2.3 Construction product directive/ Construction Product regulation 6 4.3 Environmental conditions . 6 4.3.1 Relationship between environmental conditions and severities of testing . 6 4.3.2 Climatic environment and seve
13、rities for environmental tests 7 4.3.3 Mechanical environment and severities for environmental tests 9 4.3.4 Chemical environment . 10 4.3.5 Moisture, water and humidity . 10 4.3.6 Nuclear radiation . 10 Bibliography . 11 BS EN 50290-4-1:2014- 3 - EN 50290-4-1:2014 Foreword This document (EN 50290-4
14、-1:2014) has been prepared by CLC/TC 46X “Communication cables“. The following dates are fixed: latest date by which this document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2015-06-05 latest date by which the national standards c
15、onflicting with this document have to be withdrawn (dow) 2016-09-16 This document supersedes EN 50290-4-1:2001. EN 50290-4-1:2014 includes the following significant technical changes with respect to EN 50290-4-1:2001: Clauses related to fire reaction and fire resistance have been updated to take int
16、o account the recent development of supporting standards for the CPR. This standard should be read in conjunction with EN 50290-1-1 and is completed by generic, sectional, family and detail specifications, as appropriate, to describe in a detailed manner each type of cable with its specific characte
17、ristics. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CENELEC by the Europ
18、ean Commission and the European Free Trade Association. This standard covers the Principle Elements of the Safety Objectives for Electrical Equipment Designed for Use within Certain Voltage Limits (LVD - 2006/95/EC). EN 50290-4, Communication cables General considerations for the use of cables, is d
19、ivided into the following sub-parts: Part 4-1: Environmental conditions and safety aspects the present document; Part 4-2: Guide to use. BS EN 50290-4-1:2014EN 50290-4-1:2014 - 4 - 1 Scope This European Standard gives the environmental conditions and safety aspects of symmetrical, coaxial and optica
20、l cables used for the infrastructure of communication and control networks. 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 re
21、ferences, the latest edition of the referenced document (including any amendments) applies. EN 13501-3, Fire classification of construction products and building elements Part 3: Classification using data from fire resistance tests on products and elements used in building service installations: fir
22、e resisting ducts and fire dampers EN 13501-6, Fire classification of construction products and building elements Part 6: Classification using data from reaction to fire tests on electric cables EN 50289-3 (all parts), Communication cables Specifications for test methods EN 50289-4 (all parts), Comm
23、unication cables Specifications for test methods EN 50290-1-2, Communication cables Part 1-2: Definitions EN 50290-2-2X (all parts), Communication cables EN 50575:2014, Power, control and communication cables Cables for general applications in construction works subject to reaction to fire requireme
24、nts EN 60068-2-11, Environmental testing Part 2: Tests Test Ka: Salt mist (IEC 60068-2-11) EN 60068-2-14, Environmental testing Part 2-14: Tests Test N: Change of temperature (IEC 60068-2-14) EN 60068-2-27, Environmental testing Part 2-27: Tests Test Ea and guidance: Shock (IEC 60068-2-27) EN 60068-
25、2-42, Environmental testing Part 2-42: Tests Test Kc: Sulphur dioxide test for contacts and connections (IEC 60068-2-42) EN 60068-2-53, Environmental testing Part 2-53: Tests and guidance: Combined climatic (temperature/humidity) and dynamic (vibration/shock) tests (IEC 60068-2-53) FprEN 60794-1-211
26、), Optical fibre cables Part 1-21: Generic specification Basic optical cable test procedures - Mechanical tests methods (IEC 60794-1-21) EN 61169-1:2013, Radio-frequency connectors Part 1: Generic specification General requirements and measuring methods (IEC 61169-1:2013) IEC 62012-1:2002, Multicore
27、 and symmetrical pair/quad cables for digital communications to be used in harsh environments Part 1: Generic specification 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 50290-1-2 apply. 4 Environmental conditions and installation aspects 4.1 Genera
28、l The reliability of the cables and their expected lifetime depend upon how the environmental conditions (during storage, installation and operation) are taken into account in their design. 1) By the time of publication of the present document, this reference is at Committee Draft stage in the IEC u
29、nder the reference “6A/1582/CDV“. BS EN 50290-4-1:2014- 5 - EN 50290-4-1:2014 The following subclauses address environmental aspects that can impact the reliability of the communication cables. 4.2 Relationship with EC directives 4.2.1 EMC Directive Though cables as products are not under the scope
30、of the EMC directive, they are used to interconnect apparatus as described in the directive. The equipment supplier, system designer and operators shall be aware that the interconnection of cables may affect the overall system EMC performance. Mitigation practices as developed in some installation g
31、uides can decrease the level of electromagnetic influence. To help the systems users and the designers to fulfil the EMC directive requirements by an adequate choice of cables, the electromagnetic behaviour of each cable shall be given in the relevant specification and described by screening perform
32、ance and balanced properties. 4.2.2 Low voltage directive Depending upon the actual application for which they are used, communication and control cables may have to carry signals, the voltage of which can exceed DC 100 V or AC 75 V. These cables fall under the low voltage directive and have to be d
33、esigned, tested and marked accordingly. The relevant cable specification shall take into account the requirements of the low voltage directive. Demonstration of compliance with the essential requirements of the LVD is done either through a technical file or when the cable fulfils the following diagr
34、am. Figure 1 BS EN 50290-4-1:2014EN 50290-4-1:2014 - 6 - 4.2.3 Construction product directive/ Construction Product regulation 4.2.3.1 General Communication and control cables fall under the scope of the construction product regulation, when installed in construction works. In case where CPD applies
35、 consideration shall be taken to the following: resistance to fire where applicable (e.g. for fire alarm systems, fire fighting support systems,); reaction to fire; durability; release of dangerous substances under normal circumstances. 4.2.3.2 Resistance to fire Communication cables packaging and/o
36、r labelling shall be tested according to EN 50289-4-16 for the claimed Euroclass as defined in EN 13501-3. When applicable, the communication cables packaging and/or labelling will be CE marked according to EN 50XXX:201X2), Annex ZZ. 4.2.3.3 Reaction to fire EN 50575 specifies reaction to fire perfo
37、rmance requirements, test and assessment methods for communication cables, which are intended for use in construction works. After having been tested according to EN 50575 for the claimed Euroclass as defined in EN 13501-6, communication cables packaging and/or labelling shall be CE marked according
38、 to EN 50575:2014, Annex ZZ. 4.2.3.4 Durability The relevant cable specification shall include mechanical and environmental requirements to be tested in accordance with EN 50289-3 (all parts) and EN 50289-4 (all parts) (see 4.3). Durability is presumed to be demonstrated when the cables pass the mec
39、hanical and environmental tests as given in the sectional specification. 4.2.3.5 Release of dangerous substances During the normal operating life of the cable no dangerous substances given in the updated list of the Council Directive 76/769/EEC will be released. Cables using materials according to t
40、he EN 50290-2-2X series comply with this requirement. Other materials shall be subjected to the appropriate tests. 4.3 Environmental conditions 4.3.1 Relationship between environmental conditions and severities of testing 4.3.1.1 General The purpose of environmental engineering is to render the prod
41、uct and the environment compatible. It should take all economic and technical aspects into consideration and thereby choose the best test methods and correct severities for the evaluation of the products ability to comply with the environmental conditions. A test program for the product is defined w
42、hereby the test sequence together with the test methods and limits are specified. 4.3.1.2 Environmental conditions The environmental conditions shall be evaluated by measurements or by other information available so that statistically probable characteristic values can be established corresponding t
43、o the highest possible 2) At the date of publication of the present document, EN 50XXX:201X, which is currently bound to be entitled, Power, control and communication cables Cables for general applications in construction works subject to fire resistance requirements, is not published yet. BS EN 502
44、90-4-1:2014- 7 - EN 50290-4-1:2014 constraints. Each situation has an environment of its own but it is not reasonable to prescribe individual products having slightly different withstand properties for each individual situation. It is necessary to combine these environments into a class forming an e
45、nvelope of related environments. It is only necessary to take into account those parameters that influence the performance of the product. The environment shall cover all the conditions that occur during the life of the product, i.e. storage, transportation, handling and use. 4.3.1.3 Environmental t
46、esting The purpose of an environmental test is to demonstrate that a product under defined environmental conditions can survive without permanent failure and function according to specification. The severity of the test to be selected will depend on the characteristic values obtained for the paramet
47、ers, the failure mechanism, the ageing factor, if known, and the consequences of failure. The latter will have been studied by the utilisation of the particular product and depends on its application. This means that the severity of the test can be raised or lowered according to the criticality of t
48、he product. If the sampling of the product suggests wide variations in its ability to withstand the environment the level of testing should be increased. If the distribution of environmental constraints and the resistance to the environment of a lot tested are suspected to partially overlap, the tes
49、t levels can be raised to clarify this weakness. 4.3.2 Climatic environment and severities for environmental tests 4.3.2.1 General An environmental test can be performed for many purposes. In most cases the environmental tests are one part of the qualification approval tests. In this case a test of resistance to the environment demonstrates the ability of the product to function under constraints or withstand stated constraints. There are, however, inherent limitations due to the fact that the test is usually c
