EUROPEAN STANDARD EN 61100 NORME EUROPEENNE July 1992 EUROPAISCHE NORM UDC621.315.615:536.4:614.83 Descriptors: Liquid electrical insulating materials, classification, fire point, calorific value, designation English version Classification of insulating liquids according to fire point and net calorific value (IEC 1100:1992) Classification des isolants liguides selon le Klassifikation von Isolierflüssigkeiten nach point de feu et le pouvoir calorifique inferieur dem Brandverhalten und unteren Heizwert (CEI 1100:1992) (IEC 1100:1992) This European Standard was approved by CENELEC on 1992-03-24. 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, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europaisches Komitee fur Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels @ 1992 Copyright reserved to CENELEC members Ref. No. EN 61100:1992 E EN 61100:1992 Contents Foreword Page The text of document 10(CO)261, as prepared by IECTechnicalCommitteeNo1o:Fluidsfor Foreword 2 electrotechnical applications, was submitted to the Introduction 3 IEC-CENELEC parallel vote in July 1991. 1 Scope 3 The reference document was approved by 2 Normative references 3 CENELEC as EN 61100 on 24 March 1992. 3 Characteristics selected for the The following dates were fixed: 3 classification latest date of publication of 3.1 Fire-point 3 an identical national standard (dop) 1993-05-01 3.2 Net calorific value 3 latest date of withdrawal of 4 Classification 4 conflicting national Classification according to fire-point 4 4.1 standards (dow) 1993-05-01 4.2 Classification according to net calorific Annexes designated “"normative" are part of the value 4 body of the standard. In this standard, Annex ZA is Examples of designation 4 4.3 normative. Annex ZA (normative) Other international publications quoted in this standard with the references of the relevant European publications 5 2 EN 61100:1992 Introduction 2 Normative references IEC Publication 76-2:1976, Power transformers The following standards contain provisions which, Part 2: Temperature rise, includes a classification through reference in this text, constitute provisions system for identifying transformers based on type of of this International Standard. At the time of cooling medium and the method of coolant publication, the editions indicated were valid. All circulation. Insulating liquids were classified standards are subject to revision, and parties to therein according to their fire behaviour into agreements based on this International Standard classes O (mineral oil or equivalent combustible are encouraged to investigate the possibility of synthetic insulating liquids), and L (non-flammable applying the most recent editions of the standards synthetic insulating liquids). In 1984, IEC/TC 10 listed below. Members of IEC and ISO maintain undertook a classification of insulating liquids registers of currently valid International Standards: according to fire behaviour. Pending IEC/TC 10 IEC 76-2:1976, Power transformers - proposals, CENELEC/TC 14 drafted such a Part 2: Temperature