1、BRITISH STANDARD BS EN 60465:1992 IEC465:1988 Specification for Unused insulating mineral oils for cables with oil ducts The European Standard EN60465:1990 has the status of a BritishStandardBSEN60465:1992 This BritishStandard, having been prepared under the directionof the Cables and Insulation Sta
2、ndards Policy Committee, was published underthe authority of the Standards Board and comes intoeffect on 1 April1992 BSI01-2000 The following BSI references relate to the work on this standard: Committee reference CIL/10 Draft for comment85/33206DC ISBN 0 580 20592 4 Cooperating organizations The Eu
3、ropean Committee for Electrotechnical Standardization (CENELEC), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countries. Austria Italy Belgium Luxembourg Denmark Netherlands Finland Norway France Portugal Germany Spain G
4、reece Sweden Iceland Switzerland Ireland UnitedKingdom Amendments issued since publication Amd. No. Date CommentsBSEN60465:1992 BSI 01-2000 i Contents Page Cooperating organizations Inside front cover National foreword ii Foreword 2 Section 1. General 1 Scope 3 2 Definition 3 3 Identification and ge
5、neral delivery requirements 3 4 Sampling 3 Section 2. Test methods 5 Test methods 3 Section 3. Individual specifications 6 General remark 4 7 Sheet1: Specifications for unused insulating mineral oils for cables with oil ducts 4 National annex NA (informative) Committees responsible Inside back cover
6、 National annex NB (informative) Cross-references Inside back coverBSEN60465:1992 ii BSI 01-2000 National foreword This BritishStandard has been prepared under the direction of the Cables and Insulation Standards Policy Committee, and is the English language version of EN60465:1990, “Specification f
7、or unused insulating mineral oils for cables with oil ducts”, published by the European Committee for Electrotechnical Standardization (CENELEC). It is identical with IEC465:1988 published by the International Electrotechnical Commission (IEC). The standard covers specifications and test methods for
8、 unused mineral insulating oils, as delivered, intended for use in cables with oil ducts. WARNING NOTE. This BritishStandard calls for the use of substances that may be injurious to health if adequate precautions are not taken. It refers only to the technical suitability and does not absolve the use
9、r from legal obligations relating to health and safety at any stage. 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 immun
10、ity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, theEN title page, pages2 to6, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be ind
11、icated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN60465 September1990 UDC 621.315.2:620.1 Descriptors: Electrical liquid insulant, insulating mineral oil, oil cable, requirement, test English version Specification for unused insulating minera
12、l oils for cables with oil ducts (IEC465:1988) Spcification pour huiles minrales isolantes neuves pour cbles circulation dhuile (CEI465:1988) Anforderungen an ungebrauchte Isolierle auf Minerallbasis fr Kabel mit lkanlen (IEC465:1988) This European Standard was approved by CENELEC on1990-05-01. CENE
13、LEC 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 a
14、pplication 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 Secre
15、tariat 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 andUnitedKingdom. CENELEC E
16、uropean Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1990 Copyright reserved to CENELEC members Ref. No. EN60465:1990 EEN60465:1990 BSI 01-2000
17、2 Foreword The CENELEC questionnaire procedure, performed for finding out whether or not the International Standard IEC465:1988 could be accepted without textual changes, has shown that no CENELEC common modifications were necessary for the acceptance as European Standard. The reference document was
18、 submitted to the CENELEC members for formal vote and was approved by CENELEC as EN60465 on1 May1990 with exception of Austria and Switzerland. The following dates were fixed: Endorsement Notice The text of the International Standard IEC465:1988 was approved by CENELEC as a European Standard without
19、 any modification. latest date of announcement of the EN at national level (doa)1990-12-15 latest date of publication ofan identical national standard (dop)1991-06-15 latest date of withdrawal ofconflicting national standards (dow)1991-06-15EN60465:1990 BSI 01-2000 3 Section 1. General 1 Scope 1.1 T
20、his standard covers specifications and test methods for unused mineral insulating oils, as delivered, intended for use in cables with oil ducts. These include hollow core cables, pipe type cables and any others in which provision is made for the oil to flow. Oils concerned are obtained by distillati
21、on and refining of petroleum. Oils with and without additives are within the scope of this standard. 1.2 This standard does not apply to mineral insulating oils used in transformers, switchgear, capacitors and similar equipment or to hydrocarbon insulating liquids obtained by synthesis. 1.3 For the
22、purposes of this standard three grades of oil are considered: classI, classII and classIII, based on the values of certain physical properties namely: viscosity, flash-point and pour-point. 2 Definition 2.1 additive a suitable substance, which is deliberately added to an insulating liquid in small p
23、roportion in order to improve certain characteristics 3 Identification and general delivery requirements 3.1 Oil is normally delivered in road tankers or rail tank-cars or in drums, which shall be specially cleaned for this purpose. 3.2 The drums and containers of oil samples shipped by the oil supp
24、lier shall carry at least the following markings: number of this standard; suppliers designation; class of oil. 3.3 Each oil delivery shall be accompanied by a document from the supplier specifying at least: suppliers designation, oil class and the nature of any additive present. If an anti-oxidant
25、additive or a pour-point depressant is included in an oil formulation this shall be done by agreement between purchaser and supplier; in this case the nature of both additives shall be made known to the purchaser. NOTEThe purchaser may require that no major changes in crude oil type or refining proc
26、ess may be made without the purchaser being informed. 4 Sampling Sampling shall be carried out in accordance with the procedure described in IEC Publication475. Section 2. Test methods 5 Test methods 5.1 Appearance Appearance shall be evaluated by examining a representative sample of the liquid in t
27、ransmitted light under a thickness of approximately10cm, at ambient temperature. 5.2 Density Any recognized test method may be used. The method to be used in case of dispute shall be that given in ISO Standard3675. Density shall be measured at20 C or converted to20 C by the formula: 5.3 Kinematic vi
28、scosity Kinematic viscosity shall be measured by the method given in ISO Standard3104. 5.4 Flash-point Flash-point shall be determined either with a closed cup or with an open cup. 5.4.1 Closed cup method Flash-point shall be determined according to ISOStandard2719. 5.4.2 Open cup method Flash-point
29、 shall be determined according to ISOStandard2592. 5.5 Pour-point Pour-point shall be determined according to ISOStandard3016. 5.6 Cloud-point Cloud-point shall be determined according to ISOStandard3015. 5.7 Neutralization value 5.7.1 Reagents a) Standard alcoholic potassium hydroxide (KOH) solutio
30、n0,1mol/l. b) Toluene, sulphur-free. c) Azeotropic ethanol (boiling-point78,2 C). d) Standard hydrochloric acid solution (HCl)0,1mol/l. where: 20 is the density at20 C t is the temperature in degrees Celsius t is the density measured at temperature t X is a correction factor:65 10 5(approximate valu
31、e) For greater accuracy the correction factor listed in ISO Recommendation R/91-1 should be used. 20 t1 Xt20 () + =EN60465:1990 4 BSI 01-2000 e) Alkali blue indicator solution:2g of alkali blue6 B are dissolved in100ml of azeotropic ethanol containing1ml hydrochloric acid0,1mol/l. After24h, titrate
32、to check whether the indicator has been sufficiently sensitized. The indicator is satisfactory if the colour changes distinctly from blue to red, comparable to that of10% solution of cobalt nitrate Co(NO 3 ) 2 6H 2 O. Should sensitization be insufficient, repeat the addition of0,1mol/l HCl and check
33、 again after24h. Continue until sensitization is satisfactory. Filter and store in a brown bottle in the dark. 5.7.2 Procedure Weigh20g of the sample to the nearest0,05g into a250ml stoppered conical flask. To a mixture of60ml of toluene and40ml of ethanol in a second conical flask add2ml of indicat
34、or solution. Neutralize the solution with0,1mol/l KOH alcoholic solution until a red colour comparable to that of a solution of10% cobalt nitrate Co(NO 3 ) 2 6H 2 O is obtained and persists for at least15s. Add this solution to the sample, swirl and immediately titrate at a temperature not above25 C
35、 with0,1mol/l KOH solution to the above end-point. The neutralization value is calculated from the expression: Neutralization value (mg KOH/g)= 5.8 Water content Water content shall be determined according to IEC Publication814 or IEC Publication733. 5.9 Corrosive sulphur Corrosive sulphur shall be
36、determined according to ISO Standard5662. 5.10 Anti-oxidant additives Methods for the detection and quantitative determination of specified anti-oxidant additives are described in IEC Publication666. 5.11 Breakdown voltage 5.11.1 Breakdown voltage shall be determined according to IEC Publication156.
37、 5.11.2 When breakdown voltage is to be determined on a treated oil sample the following procedure shall be used to remove moisture and particulate contaminants present in the original sample. A sufficient oil volume is heated to approximately60 C, then filtered hot under a vacuum of about2,5kPa thr
38、ough a sintered glass filter of grade10 porosity (ISO Standard4793). The filtrate is cooled in a dessicator and used immediately to determine breakdown voltage. NOTEFiltration can be done equally well at ambient temperature, but under lower pressure (e.g.0,5kPa). 5.12 Dielectric dissipation factor D
39、ielectric dissipation factor shall be determined at90 C according to IEC Publication247. NOTEWhen oil as delivered shows a dielectric dissipation factor exceeding the limits specified in Sheet1, a repeat measurement made on a sample treated as indicated in Sub-clause5.11.2 will show if contaminants
40、are removed by a relatively mild treatment. 5.13 Stability under electrical stress and ionization (gassing) The gassing shall be determined by Method A of IEC Publication628. Section 3. Individual specifications 6 General remark Precision data given in the specified methods in this standard are to b
41、e used solely as a guide to the expected agreement between duplicate measurements of the property and are not to be regarded as tolerances applicable to the limits specified in Sheet1. 7 Sheet1: Specifications for unused insulating mineral oils for cables with oil ducts Mineral insulating oils for c
42、ables with oil ducts complying with this standard shall meet the limiting values specified in Sheet1 when tested in accordance with the methods specified in Clause5. These limiting values apply only to unused oil, as delivered, prior to its introduction into cable. where: V = is the number of millil
43、itres of0,1mol/l KOH used in the titration N = is the concentration of the KOH solution inmol/l P = is the mass of the oil sample in grams VN 56,1 P -EN60465:1990 BSI 01-2000 5Sheet 1: Specifications for unused insulating mineral oils for cables with oil ducts Property Test method (sub-clause) Permi
44、ssible value ClassI ClassII ClassIII Physical Appearance 5.1 Clear, no suspended matter or sediment Density at20 C (kg/dm 3 ) 5.2 Max.0,900 Kinematic viscosity at40 C (mm 2 /s) Flash-point: a closed cup ( C) open cup ( C) Pour-point ( C) 5.3 5.4.1 5.4.2 5.5 Min.13 Min.140 Min.150 Max.30 Min.6,5 Max.
45、13 Min.125 Min.135 Max.30 Max.6,5 Min.100 Min.110 Max.40 Cloud-point ( C) b Chemicals Neutralization value (mg KOH/g) Water content (mg/kg) Corrosive sulphur Anti-oxidant additives (% by mass) Electrical Breakdown voltage (kV) Dielectric dissipation factor tg_at90 C and50Hz or60Hz Stability under el
46、ectrical stress and ionization Gassing tendency, absorption (mm 3 /min) 5.6 5.7 5.8 5.9 5.10 5.11 5.12 5.13 Method A Max.20 Max.0,03 c Non-corrosive d Min.40 e Max.0,002 Min.2 a Only one method need be used. b Only a slight opalescence, no separation of solid products. c No requirement for water con
47、tent on delivery is included as it is usual in most applications to process the oil before use. However, in some countries, it is usual for standards to specify maximum water content on delivery; in this case the water content should be less than30mg/kg for bulk delivery and less than40mg/kg for dru
48、m delivery. d See Sub-clause3.3. e Required value for mineral oil delivered in bulk. For delivery in drums the following value may be accepted: breakdown voltage,kV: min.30.6 blankBSEN60465:1992 BSI 01-2000 National annex NA (informative) Committees responsible The UnitedKingdom participation in the
49、 preparation of this European Standard was entrusted by the Cables and Insulation Standards Policy Committee (CIL/-) to Technical Committee CIL/10, upon which the following bodies were represented: Association of Consulting Engineers Chemical Industries Association Electricity Industry in UnitedKingdom ERA Technology Ltd. Health and Safety Executive Institute of Petroleum Transmission and Distribution Association (BEAMA Limited) The following b
