BS-EN-60721-3-5-1997 IEC-60721-3-5-1997.pdf
《BS-EN-60721-3-5-1997 IEC-60721-3-5-1997.pdf》由会员分享,可在线阅读,更多相关《BS-EN-60721-3-5-1997 IEC-60721-3-5-1997.pdf(32页珍藏版)》请在三一文库上搜索。
1、BRITISH STANDARD BS EN 60721-3-5:1997 IEC 60721-3-5: 1997 Classification of environmental conditions Part 3: Classification of groups of environmental parameters and their severities Section 5: Ground vehicle installations The European Standard EN 60721-3-5:1997 has the status of a British Standard
2、ICS 19.040 BS EN 60721-3-5:1997 This British Standard, having been prepared under the direction of the Electrotechnical Sector Board, was published under the authority of the Standards Board and comes into effect on 15 August 1997 BSI 11-1999 ISBN 0 580 27814 X National foreword This British Standar
3、d is the English language version of EN 60721-3-5:1997. It is identical with IEC 60721-3-5:1997. It supersedes BS EN 60721-3-5:1993 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee GEL/50, Environmental testing of electrotechnical products, which has t
4、he responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the
5、 UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding Eur
6、opean publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or using the “Find” facility of the BSI Standards Electronic Catalogue. A Brit
7、ish Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a fron
8、t cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 26 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publicatio
9、n Amd. No.DateComments BS EN 60721-3-5:1997 BSI 11-1999i Contents Page National forewordInside front cover Foreword2 Text of EN 60721-3-53 ii blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 60721-3-5 April 1997 ICS 19.040Supersedes EN 60721-3-5:1993 and its amendment Descriptors: Electron
10、ic components, electrical equipment, electronical equipment, electrotechnical components, climatic conditions, environment, choice, ground vehicles English version Classification of environmental conditions Part 3: Classification of groups of environmental parameters and their severities Section 5:
11、Ground vehicle installations (IEC 60721-3-5:1997) Classification des conditions denvironnement Partie 3: Classification des groupements des agents denvironnement et de leurs svrits Section 5: Installations des vhicules terrestres (CEI 60721-3-5:1997) Klassifizierung von Umweltbedingungen Teil 3: Kla
12、ssen von Umwelteinflugren und deren Grenzwerte Hauptabschnitt 5: Einsatz an und in Landfahrzeugen (IEC 60721-3-5:1997) This European Standard was approved by CENELEC on 1996-12-09. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving
13、 this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official ver
14、sions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees o
15、f Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europische
16、s Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1997 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60721-3-5:1997 E EN 60721-3-5:1997 BSI 11-1999 2 Foreword The text of document 75/2
17、81/FDIS, future edition 2 of IEC 60721-3-5, prepared by IEC TC 76 “Optical radiation safety and laser equipment”, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60721-3-5 on 1996-12-09. This European Standard supersedes EN 60721-3-5:1993 and its amendment A2:1994. T
18、he following dates were fixed: Annexes designated “normative” are part of the body of the standard. Annexes designated “informative” are given for information only. In this standard, Annex ZA is normative and Annex A and Annex B are informative. Annex ZA has been added by CENELEC. Endorsement notice
19、 The text of the International Standard IEC 60721-3-5:1997 was approved by CENELEC as a European Standard without any modification. Contents Page Foreword2 1Scope and object3 2Normative references3 3Definitions3 4General4 5Classification of groups of environmental parameters and their severities4 An
20、nex A (informative) Survey of conditions affecting the choice of environmental parameters and their severities10 Annex B (informative) Explanation of the environmental conditions in tropical areas as specified in classes 5K5 and 5K623 Annex ZA (normative) Normative references to international public
21、ations with their corresponding European publications26 Figure 1 Model shock response spectra (first order maximax shock response spectra)9 Figure B.1 Climatograms for tropical damp type of climate and tropical dry type of climate25 Table 1 Classification of climatic conditions5 Table 1A Classificat
22、ion of special climatic conditions6 Table 2 Classification of biological conditions6 Table 3 Classification of chemically active substances7 Table 4 Classification of mechanically active substances7 Table 5 Classification of contaminating fluids7 Table 6 Classification of mechanical conditions8 late
23、st date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 1997-12-01 latest date by which the national standards conflicting with the EN have to be withdrawn(dow) 1997-12-01 EN 60721-3-5:1997 BSI 11-19993 1 Scope and obje
24、ct This standard classifies the environmental conditions to which a product not forming part of the vehicle is subjected when installed in a ground vehicle. Such products are for example radios, communication systems, fare meters, flow meters for liquids transported by the vehicle, for example milk,
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- BS-EN-60721-3-5-1997 IEC-60721-3-5-1997 BS EN 60721 1997 IEC
链接地址:https://www.31doc.com/p-3743694.html