BS英国标准BS EN 501912001 Erection and operation of electrical test equipment.doc

BRITISH STANDARD BS EN50191:2001Erection and operation of electrical test equipmentThe European Standard EN 50191:2000 has the status of aBritish StandardICS 19.080; 29.020NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 50191:2001National forewordThis British Standard is the official English language version ofEN 50191:2000.The UK participation in its preparation was entrusted to Technical Committee PEL/99, Erection and operation of power installations, which has the responsibility to:aid enquirers to understand the text;present to the responsible 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 UK.A list of organizations represented on this committee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue.A British 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.This British Standard, having been prepared under the direction of the Electrotechnical Sector Committee, was published under the authority of the Standards Committee and comes into effect on15 May 2001© BSI 05-2001ISBN 0 580 34715 XSummary of pagesThis document comprises a front cover, an inside front cover, the EN title page,pages 2 to 18, an inside back cover and a back cover.The BSI copyright date displayed in this document indicates when the document was last issued.Amd. No.DateCommentsAmendments issued since publicationEUROPEAN STANDARDEN 50191NORME EUROPÉENNEEUROPÄISCHE NORMSeptember 2000ICS 29.020; 19.080English versionErection and operation of electrical test equipmentInstallation et exploitation des équipements électriques d'essaisErrichten und Betreiben elektrischerPrüfanlagenThis European Standard was approved by CENELEC on 1999-10-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status 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 versions (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 of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.CENELECEuropean Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische NormungCentral Secretariat: rue de Stassart 35, B - 1050 Brussels© 2000 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.Ref. No. EN 50191:2000 EPage 3EN 50191:2000ForewordThe text of this European Standard, prepared by CENELEC BTTF 85-1, Erection and operation of electrical test equipment, was submitted to the formal vote and was approved by CENELEC as EN 50191 on 1999-10-01.The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identicalnational standard or by endorsement(dop)2001-03-01 latest date by which the national standards conflictingwith the EN have to be withdrawn(dow)2002-10-01Annexes designated “normative” are part of the body of the standard. Annexes designated “informative” are given for information only.In this standard, annex A is normative and annex B is informative.© BSI 05-2001ContentsPageIntroduction . 41Scope . 42Normative references . 43Definitions . 54Erection of test installations. 74.1General . 74.2Test stations with automatic protection against direct contact . 84.3Test stations without automatic protection against direct contact . 94.4Test laboratories and experimental stations. 104.5Temporary test station . 114.6Test station without test personnel in permanent attendance . 115Operation of test installations . 115.1General . 115.2Personnel . 115.3Preparation of tests, switching operations in test stations . 125.4Test procedure . 12Annex A (normative) Permissible body currents and contact voltages . 14Annex B (informative) Example of an application illustrating the prohibition zone and test area . 17IntroductionWith reference to clause 5, the user of this EN, prepared in the field of application of Article 118 A of the EC Treaty, should be aware that standards have no formal legal relationship with Directives which may have been made under Article 118 A of the Treaty. In addition, national legislation in the Member states may contain more stringent requirements than the minimum requirements of a Directive based on Article 118 A. Information on the relationship between the national legislation implementing Directives based on Article 118 A and this EN may be given in a national foreword of the national standard implementing this EN.1Scope1.1This standard is applicable to the erection and operation of fixed and temporary electrical test installations.1.2Compliance with this standard is not necessary if contact with live parts presents no danger. This is the case when one of the following conditions is satisfied at live exposed points.a)The voltage at frequencies above 500 Hz does not exceed 25 V a.c. or 60 V d.c. and complies with the requirements for SELV or for PELV in accordance with HD 384.4.41.b)In case of voltages at frequencies up to 500 Hz exceeding 25 V a.c.or 60 V d.c., the resultant current through a non-inductive resistance of 2 k does not exceed 3 mA a.c. (r.m.s.) or 12 mA d.c.c)At frequencies above 500 Hz no hazardous body currents or contact voltages occur. In these cases the national determined current and voltage values should be applied. If there are no national requirements, determined reference values for permissible body currents and contact voltages can be taken from Table A.1 in Annex A.d)The discharge energy does not exceed 350 mJ.Even though compliance with this standard is not necessary if one of the above-mentioned conditions is satisfied, other potential risks shall be considered and appropriate measures put into place to obviate the risks.1.3This standard does not apply to the power supply to the test installations. In this case, the standards of the HD 384 series (for nominal voltages up to 1 000 V) or HD 637 S1 (for nominal voltages exceeding1 kV) are applicable to erection and EN 50110-1 is applicable to operation.1.4Where no requirements are given in this standard, the standards of the HD 384 series (for nominal voltages up to 1 000 V) or HD 637 S1 (for nominal voltages exceeding 1 kV) apply to the erection of electrical test installations and EN 50110-1 applies to the operation of electrical test installations.2Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies.EN 294,Safety of machinery Safety distance to prevent danger zones being reached by the upper limbs.EN 418,Safety of machinery Emergency stop equipment, functional aspects Principles for design.EN 574,Safety of machinery Two-hand control devices Functional aspects Principles for design.EN 50110-1,Operation of electrical installations.EN 60529,Degrees of protection provided by enclosures (IP Code) (IEC 60529).EN 61219,Live working Earthing or earthing and short-circuiting equipment using lances as short-circuiting device Lance earthing (IEC 61219).EN 61310-1,Safety of machinery Indication, marking and actuation Part 1: Requirements for visual, auditory and tactile signals (IEC 61310-1).Page 17EN 50191:2000EN 61558,Safety of power transformers, power supply units and similar (IEC 61558 series).HD 366,Classification of electrical and electronic equipment with regard to protection against electric shock (IEC 60536).HD 384 series,Electrical installations of buildings (IEC 60364 series, modified).HD 637 S1,Power installations exceeding 1 kV a.c.IEC 60050-826, International Electrotechnical Vocabulary Chapter 826: Electrical installations of buildings.3DefinitionsFor the purpose of this standard, the following definitions apply.3.1electrical test installations(referred to in the following as test installations)entirety of all the test appliances and devices combined for test purposes, by means of which electrical tests are performed on test objectsTest installations may be designed and erected or installed as:-test station;-test laboratory or experimental station;-temporary test installations.3.2test stationappropriately identified test installations within a defined area in which only one or two persons are generally employed on test work, e.g. in the line of series production or in electric workshops, repair and service shopsIn test stations a distinction is made between those with and those without automatic protection against direct contact.3.2.1test station with automatic protection against direct contacttest station in which the test object and all live parts of the test apparatus have automatically activated full protection against direct contact in an energized conditionNOTEAutomatic protection means that voltages can only occur when the safety devices are effective, e.g. when the cover or door of the test station is closed.3.2.2test station without automatic protection against direct contacttest station in which parts of the test object or live parts of the test apparatus are not fully protected against direct contact during testingThis includes, for instance, test areas in electric workshops, laboratories, measurement and experimental areas3.3test laboratorytest installations in a securely enclosed space or within an area separated from adjacent work areas, in which several persons are generally employed on test work on larger test objects remaining there for a longer period of timeA test laboratory may be subdivided into test areas in which mutually independent tests are performed.3.4experimental stationtest installations for performing experiments or tests within the scope of research and development workIn general, no routine tests are performed in experimental stationsA variety of test assemblies as well as different hazards shall therefore be anticipatedAn experimental station may be subdivided into sections in which mutually independent experiments or tests are carried out.3.5temporary test installationstest installations erected for a short time in order to perform tests on individual test objects3.6prohibition zonevolume around live parts which should not be breached if full protection against direct contact with these parts is not provided3.7test areaarea around the test assembly which is separated from the surrounding area3.8signal lightslights which are clearly visible from outside the boundaries of the test area giving red or green signals to indicate the operational status inside the test area3.9indicator lightsserve to indicate the switching status on the control panelsThey are not an alternative to required signal lights.3.10 riskcombination of the probability and the degree of the possible injury or damage to health of a person e