欢迎来到麦多课文档分享! | 帮助中心 海量文档,免费浏览,给你所需,享你所想!
麦多课文档分享
全部分类
  • 标准规范>
  • 教学课件>
  • 考试资料>
  • 办公文档>
  • 学术论文>
  • 行业资料>
  • 易语言源码>
  • ImageVerifierCode 换一换
    首页 麦多课文档分享 > 资源分类 > PDF文档下载
    分享到微信 分享到微博 分享到QQ空间

    EN IEC 61125-2018 Insulating liquids - Test methods for oxidation stability - Test method for evaluating the oxidation stability of insulating liquids in the de.pdf

    • 资源ID:1312235       资源大小:1.44MB        全文页数:34页
    • 资源格式: PDF        下载积分:10000积分
    快捷下载 游客一键下载
    账号登录下载
    微信登录下载
    二维码
    微信扫一扫登录
    下载资源需要10000积分(如需开发票,请勿充值!)
    邮箱/手机:
    温馨提示:
    如需开发票,请勿充值!快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。
    如需开发票,请勿充值!如填写123,账号就是123,密码也是123。
    支付方式: 支付宝扫码支付    微信扫码支付   
    验证码:   换一换

    加入VIP,交流精品资源
     
    账号:
    密码:
    验证码:   换一换
      忘记密码?
        
    友情提示
    2、PDF文件下载后,可能会被浏览器默认打开,此种情况可以点击浏览器菜单,保存网页到桌面,就可以正常下载了。
    3、本站不支持迅雷下载,请使用电脑自带的IE浏览器,或者360浏览器、谷歌浏览器下载即可。
    4、本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰。
    5、试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。

    EN IEC 61125-2018 Insulating liquids - Test methods for oxidation stability - Test method for evaluating the oxidation stability of insulating liquids in the de.pdf

    1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Insulating liquids - Test methods for oxidation stability - Test method for evaluating the oxidation stability of insulating liquids in the delivered stateBS EN IEC 61125:2018EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE N

    2、ORMEN IEC 61125March 2018ICS 29.040.10 Supersedes EN 61125:1993 English VersionInsulating liquids - Test methods for oxidation stability - Test method for evaluating the oxidation stability of insulating liquids in the delivered state(IEC 61125:2018)Isolants liquides - Mthodes dessai de la stabilit

    3、loxydation - Mthode dessai pour valuer la stabilit loxydation des isolants liquides tels que livrs(IEC 61125:2018)Isolierflssigkeiten - Prfverfahren fr die Oxidationsbestndigkeit - Prfverfahren zur Evaluierung der Oxidationsbestndigkeit von neuen Isolierflssigkeiten(IEC 61125:2018)This European Stan

    4、dard was approved by CENELEC on 2018-02-16. 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 concerni

    5、ng such national standards may be obtained on application to the CEN-CENELEC Management Centre 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

    6、 into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic o

    7、f Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.European Committee for Electrotechnical Standardizat

    8、ion Comit Europen de Normalisation ElectrotechniqueEuropisches Komitee fr Elektrotechnische NormungCEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.Ref. No. EN IEC 61125:20

    9、18 ENational forewordThis British Standard is the UK implementation of EN IEC 61125:2018. It is identical to IEC 61125:2018. It supersedes BS EN 61125:1993, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee GEL/10, Fluids for electrotechnical application

    10、s.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. The British Standards Institution 2018 Published by BSI Stan

    11、dards Limited 2018ISBN 978 0 580 93856 6ICS 29.040.10Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2018.Amendments/corrigenda issued since publication

    12、Date Text affectedBRITISH STANDARDBS EN IEC 61125:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IEC 61125 March 2018 ICS 29.040.10 Supersedes EN 61125:1993 English Version Insulating liquids - Test methods for oxidation stability - Test method for evaluating the oxidation stability of ins

    13、ulating liquids in the delivered state (IEC 61125:2018) Isolants liquides - Mthodes dessai de la stabilit loxydation - Mthode dessai pour valuer la stabilit loxydation des isolants liquides tels que livrs (IEC 61125:2018) Isolierflssigkeiten - Prfverfahren fr die Oxidationsbestndigkeit - Prfverfahre

    14、n zur Evaluierung der Oxidationsbestndigkeit von neuen Isolierflssigkeiten (IEC 61125:2018) This European Standard was approved by CENELEC on 2018-02-16. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the

    15、 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 CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, F

    16、rench, 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 CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austr

    17、ia, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Sloveni

    18、a, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CENELEC All

    19、 rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN IEC 61125:2018 E BS EN IEC 61125:2018EN IEC 61125:2018 (E) 2 European foreword The text of document 10/1047/FDIS, future edition 2 of IEC 61125, prepared by IEC/TC 10 “Fluids for electrotechnical

    20、 applications“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 61125:2018. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2018-11-16 lat

    21、est date by which the national standards conflicting with the document have to be withdrawn (dow) 2021-02-16 This document supersedes EN 61125:1993 and EN 61125:1993/A1:2004. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC

    22、 shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 61125:2018 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be ad

    23、ded for the standards indicated: IEC 60296 NOTE Harmonized as EN 60296. IEC 60666 NOTE Harmonized as EN 60666. IEC 61099 NOTE Harmonized as EN 61099. IEC 62021-1 NOTE Harmonized as EN 62021-1. IEC 62770 NOTE Harmonized as EN 62770. BS EN IEC 61125:2018EN IEC 61125:2018 (E) 3 Annex ZA (normative) Nor

    24、mative references to international publications with their corresponding European publications The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For unda

    25、ted references, the latest edition of the referenced document (including any amendments) applies. NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. NOTE 2 Up-to-date information on the latest versions of the European

    26、Standards listed in this annex is available here: www.cenelec.eu. Publication Year Title EN/HD Year IEC 60247 - Insulating liquids - Measurement of relative permittivity, dielectric dissipation factor (tan ) and d.c. resistivity EN 60247 - IEC 62021-2 - Insulating liquids - Determination of acidity

    27、- Part 2: Colourimetric titration EN 62021-2 - IEC 62021-3 - Insulating liquids - Determination of acidity - Part 3: Test methods for non-mineral insulating oils EN 62021-3 - IEC 60422 2013 Mineral insulating oils in electrical equipment - Supervision and maintenance guidance EN 60422 2013 ISO 383 -

    28、 Laboratory glassware; Interchangeable conical ground joints - - ISO 4793 - Laboratory sintered (fritted) filters; Porosity grading, classification and designation - - ISO 6344-1 - Coated abrasives - Grain size analysis - Part 1: Grain size distribution test - - ISO 3104 - Petroleum products - Trans

    29、parent and opaque liquids - Determination of kinematic viscosity and calculation of dynamic viscosity EN ISO 3104 - ASTM E287 - Standard specification for laboratory glass graduated burets - - BS EN IEC 61125:2018This page deliberately left blank 2 IEC 61125:2018 IEC 2018 CONTENTS FOREWORD . 5 1 Sco

    30、pe 7 2 Normative references 7 3 Terms and definitions 8 4 Apparatus 9 4.1 General principle of the method 9 4.2 Equipment 9 4.2.1 Heating arrangement . 9 4.2.2 Test vessels 10 4.2.3 Absorption tubes 10 4.2.4 Filtering crucibles 10 4.2.5 Porcelain vessels. 11 4.2.6 Flowmeter 11 4.2.7 Timer . 11 4.2.8

    31、 Gas supply 11 4.2.9 Analytical balance . 11 4.2.10 Burette 11 4.2.11 Volumetric pipette 11 4.2.12 Volumetric flask . 12 4.2.13 Graduated measuring cylinder . 12 4.2.14 Thermometer . 12 4.2.15 Erlenmeyer flask 12 4.3 Reagents 12 4.3.1 Normal heptane . 12 4.3.2 Alkali blue 6B indicator according to I

    32、EC 62021-2 12 4.3.3 Phenolphthalein indicator 12 4.3.4 Potassium hydroxide according to IEC 62021-2 . 12 4.3.5 Oxidant gas . 12 4.3.6 Acetone . 12 4.4 Cleaning of test vessels 12 4.5 Catalyst 13 4.6 Insulating liquid sample conditioning . 13 4.7 Preparation of the test 13 4.8 Determinations on the o

    33、xidized insulating liquid 13 4.8.1 Sludge formation . 13 4.8.2 Soluble acidity (SA) . 14 4.8.3 Volatile acidity (VA) . 14 4.8.4 Total acidity (TA) . 15 4.8.5 Dielectric dissipation factor (DDF) . 15 4.8.6 Oxidation rate with air 15 4.8.7 Induction period with air (IP with air) (optional) 15 4.9 Repo

    34、rt. 15 4.10 Precision . 16 4.10.1 General . 16 4.10.2 Repeatability (r) (95 % confidence) . 16 4.10.3 Reproducibility (R) (95 % confidence) 16 2 IEC 61125:2018 IEC 2018 CONTENTS FOREWORD . 5 1 Scope 7 2 Normative references 7 3 Terms and definitions 8 4 Apparatus 9 4.1 General principle of the metho

    35、d 9 4.2 Equipment 9 4.2.1 Heating arrangement . 9 4.2.2 Test vessels 10 4.2.3 Absorption tubes 10 4.2.4 Filtering crucibles 10 4.2.5 Porcelain vessels. 11 4.2.6 Flowmeter 11 4.2.7 Timer . 11 4.2.8 Gas supply 11 4.2.9 Analytical balance . 11 4.2.10 Burette 11 4.2.11 Volumetric pipette 11 4.2.12 Volum

    36、etric flask . 12 4.2.13 Graduated measuring cylinder . 12 4.2.14 Thermometer . 12 4.2.15 Erlenmeyer flask 12 4.3 Reagents 12 4.3.1 Normal heptane . 12 4.3.2 Alkali blue 6B indicator according to IEC 62021-2 12 4.3.3 Phenolphthalein indicator 12 4.3.4 Potassium hydroxide according to IEC 62021-2 . 12

    37、 4.3.5 Oxidant gas . 12 4.3.6 Acetone . 12 4.4 Cleaning of test vessels 12 4.5 Catalyst 13 4.6 Insulating liquid sample conditioning . 13 4.7 Preparation of the test 13 4.8 Determinations on the oxidized insulating liquid 13 4.8.1 Sludge formation . 13 4.8.2 Soluble acidity (SA) . 14 4.8.3 Volatile

    38、acidity (VA) . 14 4.8.4 Total acidity (TA) . 15 4.8.5 Dielectric dissipation factor (DDF) . 15 4.8.6 Oxidation rate with air 15 4.8.7 Induction period with air (IP with air) (optional) 15 4.9 Report. 15 4.10 Precision . 16 4.10.1 General . 16 4.10.2 Repeatability (r) (95 % confidence) . 16 4.10.3 Re

    39、producibility (R) (95 % confidence) 16 BS EN IEC 61125:2018IEC 61125:2018 IEC 2018 3 Annex A (normative) Thermometer specifications 20 Annex B (informative) Method for evaluating the oxidation stability of inhibited insulating liquids in the delivery state by measurement of the induction period with

    40、 oxygen 21 B.1 Outline of the method 21 B.2 Reagents and test conditions 21 B.3 Procedure . 21 B.3.1 General . 21 B.3.2 Preparation of the test . 21 B.3.3 Oxidation . 22 B.3.4 Determination of the induction period with oxygen . 22 B.3.5 Determinations on the oxidized oil (optional) 22 B.4 Report. 23

    41、 B.5 Precision . 23 B.5.1 General . 23 B.5.2 Relative repeatability (r) (95 % confidence) . 23 B.5.3 Relative reproducibility (R) (95 % confidence) . 23 Annex C (informative) Method for evaluation of thermo-oxidative behaviour of unused ester insulating liquids 24 C.1 Outline of the method 24 C.2 Eq

    42、uipment 24 C.2.1 Heating arrangement . 24 C.2.2 Test vessels 24 C.2.3 Reagents . 24 C.3 Test procedure 24 C.3.1 Sample conditioning and preparation . 24 C.3.2 Ageing procedure 25 C.4 Determination of the oxidized insulating liquid . 25 C.4.1 Soluble acidity . 25 C.4.2 Dielectric dissipation factor (

    43、DDF) at 90 C 25 C.4.3 Appearance . 25 C.4.4 Kinematic viscosity 25 C.5 Report. 25 C.6 Precision . 26 Bibliography 27 Figure 1 Typical 8 hole (4 x 2) aluminium heating block 17 Figure 2 Aluminium alloy temperature measuring block 17 Figure 3 Position of the tube in the oil bath 18 Figure 4 Oxidation

    44、tube or absorption tube 18 Figure 5 Oxidation tube and absorption tube assembly 19 Figure C.1 Headspace vial with copper catalyst . 25 Table 1 Repeatability and reproducibility of the oxidation stability test of uninhibited mineral oil in the delivered state for 164 h at 120 C . 16 Table A.1 Thermom

    45、eter specifications . 20 Table B.1 Precision data for induction time with oxygen for the oxidation test for mineral oil according to Annex B . 23 BS EN IEC 61125:2018 4 IEC 61125:2018 IEC 2018 Table C.1 Precision data for headspace procedure according to Annex C 26 BS EN IEC 61125:2018IEC 61125:2018

    46、 IEC 2018 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ INSULATING LIQUIDS TEST METHODS FOR OXIDATION STABILITY Test method for evaluating the oxidation stability of insulating liquids in the delivered state FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization

    47、for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publ

    48、ishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may

    49、participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate 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, an international


    注意事项

    本文(EN IEC 61125-2018 Insulating liquids - Test methods for oxidation stability - Test method for evaluating the oxidation stability of insulating liquids in the de.pdf)为本站会员(花仙子)主动上传,麦多课文档分享仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文档分享(点击联系客服),我们立即给予删除!




    关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服 - 联系我们

    copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
    备案/许可证编号:苏ICP备17064731号-1 

    收起
    展开