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bs英國標準bsen50288-6-2-20xx用于模擬和數(shù)字通信和控制的多元件金屬電纜第6-2部分250mhz及以下的非屏蔽電纜的分規(guī)范工作區(qū)域和中繼電纜-資料下載頁

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【導讀】EN50288-6-2:2020.EPL/46,Cables,wires,waveguides,.connectors,.andmicrowave. StandardsOnline.NORMEEUROP?ENNE. EUROP?ISCHENORM. C¬blesm?talliques¢?l?ments. utilis?etnum?riques. Partie6-2:Sp?cificationinterm?diaire. pourlesc¬blesnonblind?s. undKontrollkabelf?ranaloge. unddigitale?bertragung. f?

  

【正文】 ameter 40 mm, no. of cycles 500, . Return loss, charac teri sti c impedanc e and NEXT shall remain within the specifi ed limits ? 9 ? EN 5028 8 6 2 :2 00 3 Environmental tests EN 502881 Subclause no Parameter Requirem ent Cold bend performance of the cable EN 5028939 Mandrel diameter 8 x OD, no. of turns 4, temp 20 ?C ? 2 ?C No cracks when exami n ed visually without magni fic ati o n Temperature cycling EN 5028946 The attenuation shall meet the adjusted values according to note 3 in Table when subjected to 2 temperature cycles between 20 ?C and 60 ?C Fire performance tests Fire performance tests shall be in accordance with of EN 502881. BS EN 5028862:2020 BSI 389 Chiswick High Road London W4 4AL BSI — British Standards Institution BSI is the indep e n d e nt national body responsible for preparin g British Standard s. It presents the UK view on standards in Europe and at the internatio n al level. It is incorporated by Royal Charter. Revisi ons British Standard s are updated by amendment or revision. Users of British Standard s should make sure that they possess the latest amendmen ts or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccurac y or ambiguity while using this British Standa rd would inform the Secretary of the technical mitt ee responsib le , the identity of which can be found on the inside front cover. Tel: +44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatic ally receiv e the latest editions of standards. Buying standards Orders for all BSI, internation al and foreig n standard s publica tions should be addresse d to Customer Services. Tel: +44 (0)20 8996 9001. Fax: +44 (0)20 8996 7001. Email: orders@bsiglo . Stand ards are also available from the BSI website at . In response to orders for international standa rd s, it is BSI policy to supply the BSI implementatio n of those that have been published as British Standards, unless otherwise request ed. Information on standards BSI provides a wide range of information on national, European and internatio n al standard s through its Library and its Technical Help to Exporte rs Service. Various BSI electronic information services are also availa ble which give details on all its products and service s. Cont a c t the Information Centre. Tel: +44 (0)20 8996 7111. Fax: +44 (0)20 8996 7048. Email: info@ o m. Subscribing members of BSI are kept up to date with standa rds developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel: +44 (0)20 8996 7002. Fax: +44 (0)20 8996 7001. Email: membership @bsiglo . Information regardin g online acce ss to British Standards via British Standards Online can be found at glob Further information about BSI is available on the BSI websit e at :/ / w . Copyright Copyright subsists in all BSI public a tions. BSI also holds the copyright, in the UK, of the publica tions of the interna tio n al standardization bodies. Except as permitte d under the Copyright, Designs and Patents Act 1988 no extra ct may be reproduced, stored in a retrieval system or transmitted in any form or by any means – electronic, photoc opying, recording or otherw ise – without prior written permission from BSI. This does not preclud e the free use, in t he course of implementing th e stand ar d, of n ecessary details such as symb ols, and size, type or grade d esignatio ns. If thes e details are to be use d for any other purpose than impleme ntation the n the prior written permission of BSI must be obtaine d. Details and advice can be obtained from the Copyrig ht amp。 Licensing Manager. Tel: +44 (0)20 8996 7070. Fax: +44 (0)20 8996 7553. Email: copyright@bsiglob . 國內外標準 大全 網 國 內 外 標 準 下 載 地 址
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