1、 S+ IEC 60296 Edition 4.0 2012-02 IEC STANDARDS+ Fluids for electrotechnical applications Unused mineral insulating oils for transformers and switchgear Fluides pour applications lectrotechniques Huiles minrales isolantes neuves pour transformateurs et appareillages de connexion S+ IEC 60296:2012 TH
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16、 electrotechnical applications Unused mineral insulating oils for transformers and switchgear Fluides pour applications lectrotechniques Huiles minrales isolantes neuves pour transformateurs et appareillages de connexion INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATI
17、ONALE RK ICS 29.040 PRICE CODE CODE PRIX ISBN 978-2-88912-928-7 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuille
18、z vous assurer que vous avez obtenu cette publication via un distributeur agr. IEC 60296 Edition 4.0 2012-02 INTERNATIONAL STANDARD NORME INTERNATIONALE Fluids for electrotechnical applications Unused mineral insulating oils for transformers and switchgear Fluides pour applications lectrotechniques
19、Huiles minrales isolantes neuves pour transformateurs et appareillages de connexion IEC 60296:2012 2 60296 IEC:2012 CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope . 7 2 Normative references . 7 3 Terms and definitions . 9 4 Properties of oil 10 4.1 Functional properties . 10 4.2 Refining and stabili
20、ty . 10 4.3 Performance 10 4.4 Health, safety and environment (HSE) properties 10 5 Classification, identification, general delivery requirements and sampling. 11 5.1 Classification . 11 5.1.1 Classes . 11 5.1.2 Antioxidant additive (inhibitor) content . 11 5.1.3 Lowest cold start energizing tempera
21、ture (LCSET) 11 5.2 Requirements 11 5.3 Miscibility 11 5.4 Identification and general delivery requirements 11 5.5 Sampling . 12 6 Properties, their significance and test methods . 12 6.1 Viscosity 12 6.2 Pour point . 12 6.3 Water content 12 6.4 Breakdown voltage 13 6.5 Dielectric dissipation factor
22、 (DDF) . 13 6.6 Appearance . 13 6.7 Acidity . 13 6.8 Interfacial tension (IFT) . 13 6.9 Sulphur content . 13 6.10 Corrosive and potentially corrosive sulphur . 13 6.11 Additives (see 3.4) 14 6.11.1 General . 14 6.11.2 Antioxidant additives (see 3.5) . 14 6.11.3 Metal passivators 14 6.11.4 Pour point
23、 depressants 15 6.12 Oxidation stability 15 6.13 Gassing tendency 15 6.14 Electrostatic charging tendency (ECT) . 15 6.15 Flash point 15 6.16 Density 15 6.17 Polycyclic aromatic content (PCAs) . 16 6.18 Polychlorinated biphenyl content (PCBs) . 16 6.19 2-Furfural (2-FAL) and related compounds conten
24、t 16 6.20 Particle content . 16 60296 IEC:2012 3 6.21 DBDS content . 16 6.22 Stray gassing of oil 16 7 Specific requirements for special applications 18 7.1 Higher oxidation stability and low sulphur content . 18 7.2 Electrostatic charging tendency (ECT) . 18 7.3 Gassing tendency 18 Annex A (informa
25、tive) Potentially corrosive sulphur . 19 Bibliography 21 Table 1 Maximum viscosity and pour point of transformer oil at lowest cold start energizing temperature (LCSET) . 12 Table 2 General specifications . 17 4 60296 IEC:2012 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ FLUIDS FOR ELECTROTECHNICAL A
26、PPLICATIONS UNUSED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEAR FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote in
27、ternational co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (herea
28、fter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non- governmental organizations liaising with the IEC also part
29、icipate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, a
30、n international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all
31、 reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to app
32、ly IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of
33、conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this pub
34、lication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect
35、, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the co
36、rrect application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60296 has been prepared b
37、y IEC technical committee 10: Fluids for electrotechnical applications. This fourth edition cancels and replaces the third edition, published in 2003. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition
38、: specifications for corrosive sulphur compounds that can lead to copper sulphide deposition in transformers (in non-passivated and passivated oils); definitions of additives in oil; and re-insertion of a missing note on oxidation. 60296 IEC:2012 5 The text of this standard is based on the following
39、 documents: FDIS Report on voting 10/878/FDIS 10/885/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. The committee has decided
40、that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 6
41、 60296 IEC:2012 INTRODUCTION This International Standard does not purport to address all the safety problems associated with its use. It is the responsibility of the user of the standard to establish appropriate health and safety practices and determine the applicability of regulatory limitations pr
42、ior to use. The mineral insulating oils which are the subject of this standard should be handled with due regard to personal hygiene. Direct contact with the eyes may cause irritation. In the case of eye contact, irrigation with copious quantities of clean running water should be carried out and med
43、ical advice sought. Some of the tests specified in this standard involve the use of processes that could lead to a hazardous situation. Attention is drawn to the relevant standard for guidance. This standard is applicable to mineral insulating oils, chemicals and used sample containers. The disposal
44、 of these items should be carried out according to local regulations with regard to their impact on the environment. Every precaution should be taken to prevent release of mineral insulating oil into the environment. 60296 IEC:2012 7 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS UNUSED MINERAL INSULATING
45、 OILS FOR TRANSFORMERS AND SWITCHGEAR 1 Scope This International Standard is applicable to specifications and test methods for unused mineral insulating oils (see Clause 3 for definitions). It applies to oil delivered to the agreed point and time of delivery, intended for use in transformers, switch
46、gear and similar electrical equipment in which oil is required for insulation and heat transfer. These oils are obtained by refining, modifying and/or blending of petroleum products and other hydrocarbons. Oils with and without additives are both within the scope of this standard. This standard is a
47、pplicable only to unused mineral insulating oils. Recycled oils are beyond the scope of this standard. NOTE Definitions and specifications for recycled oils will be covered by IEC 62701 1 . This standard does not apply to mineral insulating oils used as impregnants in cables or capacitors. 2 Normati
48、ve references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) ap
49、plies. IEC 60076-2, Power transformers Part 2: Temperature rise for liquid-immersed transformers IEC 60156, Insulating liquids Determination of the breakdown voltage at power frequency Test method IEC 60247, Insulating liquids Measurement of relative permittivity, dielectric dissipation factor (tan ) and d.c. resistivity IEC 60422, Mineral insulating oils in electrical equipment Supervision and maintenance guidance IEC
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