BS EN BRITISHSTANDARD 60706-5:2007 Maintainability of equipment - Part 5: Testability and diagnostic testing ICS 03.120.01; 03.120.30; 21.020; 29.020 BSi British Standards BSEN60706-5:2007 National foreword This British Standard is the UK implementation of EN 60706-5:2007. It is identical to IEC 60706-5:2007.It supersedes BS 6548-5:1995which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee DS/1, Dependability and terotechnology, to Subcommittee DS/1/1, Dependability A list of organizations represented on this committee can be obtained on 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. Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was Amendments/corrigenda issued since publication published under the authority of the Standards Policy and Date Comments Strategy Committee on 31 January 2008 BSI 2008 ISBN 9780580547638 EUROPEANSTANDARD EN 60706-5 NORMEEUROPEENNE EUROPAISCHE NORM October2007 ICS 03.120.01; 03.120.30; 21.020 English version Maintainability of equipment - Part 5: Testability and diagnostic testing (IEC 60706-5:2007) Maintenabilite de materiel - Instandhaltbarkeit von Geraten - Partie 5: Testabilite et tests Teil 5: Prufbarkeit und pour diagnostic diagnostisches Prufen (CEI60706-5:2007) (IEC60706-5:2007) This European Standard was approved by CENELEC on 2007-10-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status ofa nationalstandard without anyalteration. applicationtotheCentral SecretariatortoanyCENELECmember 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. Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. CENELEC EuropeanCommitteeforElectrotechnicalStandardization Comite Europeen de Normalisation Electrotechnique Europaisches Komitee fur Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B -1050 Brussels @2007CENELEC- Ref. No. EN 60706-5:2007 E - 2 - EN 60706-5:2007 Foreword The text of document 56/1211/FDIS, future edition 2 of IEC 60706-5, 5,preparedbyIECTC56, Dependability,was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60706-5 on 2007-10-01. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard orby endorsement (dop) 2008-07-01 latest date by which the national standards conflicting (dow) withtheENhavetobewithdrawn 2010-10-01 AnnexZAhasbeenaddedby CENELEC. Endorsement notice The text of the International Standard IEC 60706-5:2007was approved by CENELEC as a European Standard without any modification. EN 60706-5:2007 3 CONTENTS INTRODUCTION .6 Scope 2 Normative references.. 3 Terms, definitions and acronyms 3.1 Terms and definitions 3.2 Acronyms.. 4 Description of testability and diagnostic testing.. 4.1 General .. .12 4.2 Objectives of testability. .14 4.3 Objectives of diagnostic testing. .15 4.4 Methods usedfordiagnostictesting 4.5 Methods used for condition monitoring 4.6 Conceptof testability 5 Testability specification. .17 5.1 General 17 5.2 Statement of work 5.3 Specification.... 5.4 Characteristics of testability ... 5.4.1 Testability features .. ..22 5.4.2 Operational context... 5.4.3 Test tasks.. .22 5.5 Characteristicvaluesforassessingtestability ..24 5.6 Criteriaforevaluation of alternative diagnostic designs .24 Testability inthedevelopmentprocess.. .25 6.1 General ..25 6.2 Functional assignment.. .2