1、BRITISH STANDARDBS EN 61212-3-2:2006Insulating materials Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes Part 3: Specifications for individual materials Sheet 2: Round laminated moulded tubesThe European Standard EN 61212-3-2:2006 has the status
2、of a British StandardICS 29.035.01g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 61212-3-2:2006This British Standard was published under the
3、authority of the Standards Policy and Strategy Committee on 30 November 2006 BSI 2006ISBN 0 580 49489 6National forewordThis British Standard was published by BSI. It is the UK implementation of EN 61212-3-2:2006. It is identical with IEC 61212-3-2:2006. It supersedes BS EN 61212-3-2:1996 which is w
4、ithdrawn.The UK participation in its preparation was entrusted by Technical Committee GEL/15, Standards on specifications for electrical insulating materials, to Subcommittee GEL/15/3, Material specifications.A list of organizations represented on GEL/15/3 can be obtained on request to its secretary
5、.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARD EN
6、61212-3-2 NORME EUROPENNE EUROPISCHE NORM September 2006 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2006 CENELEC - All righ
7、ts of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61212-3-2:2006 E ICS 29.035.01 Supersedes EN 61212-3-2:1995English version Insulating materials - Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes
8、Part 3: Specifications for individual materials - Sheet 2: Round laminated moulded tubes (IEC 61212-3-2:2006) Matriaux isolants - Tubes et barres industriels, rigides, ronds, stratifis, base de rsines thermodurcissables, usages lectriquesPartie 3: Spcifications pour matriaux particuliers - Feuille 2
9、: Tubes ronds, stratifis, mouls (CEI 61212-3-2:2006) Isolierstoffe - Runde Rohre und Stbe aus technischen Schichtpressstoffen auf der Basis warmhrtender Harze fr elektrotechnische Zwecke Teil 3: Bestimmungen fr einzelne Werkstoffe - Blatt 2: Runde, formgepresste Rohre (IEC 61212-3-2:2006) This Europ
10、ean Standard was approved by CENELEC on 2006-07-01. 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
11、 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
12、 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, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, It
13、aly, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Foreword The text of document 15/303/FDIS, future edition 2 of IEC 61212-3-2, prepared by IEC TC 15, Standards on specifications for e
14、lectrical insulating materials, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61212-3-2 on 2006-07-01. This European Standard supersedes EN 61212-3-2:1995. The main changes from EN 61212-3-2:1995 are as follows: added application use and safety statements; reformat
15、ted document to bring it up to current IEC document format; new types EP GC 23 and PF CC 24 added; type PF CP 24 removed. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2007-
16、04-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2009-07-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61212-3-2:2006 was approved by CENELEC as a European Standard without any modification.
17、_ EN 61212-3-2:2006 2 CONTENTS INTRODUCTION.5 1 Scope.6 2 Normative references .6 3 Terms and definitions .6 4 Designations and abbreviations7 4.1 General .7 4.2 Designation .7 4.3 Abbreviations 7 5 Requirements .8 Table 1 Types of industrial round moulded tubes .8 Table 2 External and internal diam
18、eters of round moulded tubes9 Table 2a Permissible deviation from nominal external diameter of round moulded tubes in the “as moulded“ condition 9 Table 2b Permissible deviation from nominal external diameter of moulded tubes in ground or turned condition, all types .9 Table 3 Permissible deviation
19、from nominal internal diameter of moulded tubes 10 Table 4 Tolerance on wall thickness for round moulded tubes10 Table 5 Departure from straightness for round moulded tubes .11 Table 6 Property requirements for round moulded tubes 12 Table 7 Electric strength at 90 C in oil, perpendicular to laminat
20、ions for laminated tubes (1 min proof test or 20 s step-by-step test) (kV/mm) 13 EN 61212-3-2:2006 3 Annex ZA (normative) Normative references to international publications with their corresponding European publications .14 blankINTRODUCTION This part of IEC 61212 is one of a series which deals with
21、 industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes. This series consists of three parts: Part 1: Definitions, designations and general requirements (IEC 61212-1) Part 2: Methods of test (IEC 61212-2) Part 3: Specifications for individual materials
22、(IEC 61212-3) IEC 61212-3-2 contains one of the specification sheets comprising Part 3, as follows: Sheet 2: Round laminated moulded tubes. EN 61212-3-2:2006 5 INSULATING MATERIALS INDUSTRIAL RIGID ROUND LAMINATED TUBES AND RODS BASED ON THERMOSETTING RESINS FOR ELECTRICAL PURPOSES Part 3: Specifica
23、tions for individual materials - Sheet 2: Round laminated moulded tubes 1 Scope This part of IEC 61212-3 gives requirements for industrial rigid round laminated moulded tubes for electrical purposes, based on different resins and different reinforcements. Applications and distinguishing properties a
24、re given in Table 1. Materials which conform to this specification meet established levels of performance. However, the selection of a material by a user for a specific application should be based on the actual requirements necessary for adequate performance in that application and not based on this
25、 specification alone. Safety Warning: It is the responsibility of the user of the methods contained or referred to in this document to ensure that they are used in a safe manner. 2 Normative references The following referenced documents are indispensable for the application of this document. For dat
26、ed references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 61212-1:2006, Insulating materials Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes Part 1
27、: Definitions, designations and general requirements IEC 61212-2:2006, Insulating materials Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes Part 2: Methods of test ISO 472, Plastics Vocabulary 3 Terms and definitions For the purposes of this docu
28、ment, the following modified definition, which is taken from ISO 472, applies. 3.1 moulded tube (as applied to thermosets) tube formed by rolling impregnated layers of material on a mandrel, curing the assembly in a cylindrical mould under heat and pressure, and then removing the mandrel ISO 472, MO
29、D EN 61212-3-2:2006 6 4 Designations and abbreviations 4.1 General The moulded tubes covered by this Part of IEC 61212-3 sheet are classified into types which differ in the resin and reinforcement used, the method of manufacture and their distinguishing properties. 4.2 Designation Individual types a
30、re designated by a two-letter abbreviation denoting the resin; a second two-letter abbreviation, denoting the reinforcement; a serial number of two digits, the first digit denoting the form of the material, a “3” indicates moulded tubes, and, a second digit denoting sub-grades of the same type. The
31、abbreviations are given in 4.3. The complete designation of the moulded tube is denoted as follows: description: moulded tube; number of the IEC standard: IEC 6121232; designation of the individual type; dimensions (in millimetres) of the moulded tube: internal diameter x external diameter x length;
32、 a letter designating the finish on the external diameter of the moulded tube: “A“ designating moulded tubes in the “as produced“ condition; “B“ designating moulded tubes in ground or turned condition. EXAMPLE: Moulded tube, IEC 61212-3-2 EP CC 31 25x35x1000-A 4.3 Abbreviations Types of resin Types
33、of reinforcement EP Epoxy (epoxide) CC Woven cotton cloth PF Phenolic CP Cellulosic paper EN 61212-3-2:2006 7 5 Requirements In addition to the general requirements given in IEC 61212-1, the moulded tubes shall comply with the additional requirements given in Tables 2a, 2b, 3, 4, 5, 6 and 7, with th
34、e exception of the length of tube supplied, which shall be subject to agreement between buyer and seller. Table 1 Types of industrial round moulded tubes Resin Reinforce- ment Serial numberApplications and distinguishing characteristicsa). EP CC 31 Mechanical, electrical and electronic applications.
35、 Good resistance to tracking. 31 Mechanical and electrical applications. fine weaveb). 32 Similar to type PF CC 31, but of coarse weaveb). CC 33 Similar to type PF CC 31, but of very coarse weaveb). 31 Electrical and mechanical applications. Good electrical properties when exposed to normal relative
36、 humidity. PF CP 32 Similar to type PF CP 31, but with improved mechanical and electrical properties. a)It should not be inferred from the contents of Table 1 that round laminated rolled tubes of any particular type are necessarily unsuitable for applications other than those listed for them, or tha
37、t specific round laminated rolled tubes will be suitable for all applications within the wide description given. b)Fabric weaves of type CC reinforcements: Mass per unit area g/m2Thread count cm-1Very coarse weave 200 130 18 to 29 Fine weave 130 30 to 37 Very fine weave 125 37 These values are only
38、for information. They are not to be considered as specification values. In general, the finer weave materials have better machining characteristics. EN 61212-3-2:2006 8 Table 2 External and internal diameters of round moulded tubes Table 2a Permissible deviation from nominal external diameter of rou
39、nd moulded tubes in the “as moulded“ condition Maximum deviation mm Type Nominal external diameter D mm PF CP EP CC PF CC 3 3 500 0,08 0,1 0,15 0,2 0,3 0,3 0,4 0,5 0,6 0,7 0,75 0,8 1,0 - - - 0,3 0,4 0,4 0,4 0,5 0,6 0,7 0,75 0,8 1,0 Test method: see 4.2 of IEC 61212-2. NOTE A double dash “-“ signifie
40、s that there is no requirement. Table 2b Permissible deviation from nominal external diameter of moulded tubes in ground or turned condition, all types Nominal external diameter D mm Maximum deviationa mm 25 25 125 0,15 0,25 0,30 0,35 0,45 0,50 Test method: see 4.2 of IEC 61212-2. a If a unilateral
41、tolerance is agreed between purchaser and supplier, the tolerance may not be greater than twice the value given in the table.EN 61212-3-2:2006 9 Table 3 Permissible deviation from nominal internal diameter of moulded tubes Nominal internal diameter d mm Maximum deviationa mm 3 3 500 0,10b0,15 0,20 0
42、,25 0,30 0,50 0,70 1,00 1,50 2,00 Test method: see 4.3 of IEC 61212-2. aIf a unilateral tolerance is agreed between purchaser and supplier, the tolerance may notbe greater than twice the value given in the table. bApplicable to PF CP types only.Table 4 Tolerance on wall thickness for round moulded t
43、ubes Maximum deviation mm Types Nominal wall thickness t mm PF CP PF CP 32 EP CC PF CC 31 PF CC PF CC 33 PF CC 34 1,5 1,5 25,0 0,25 0,40 0,55 0,90 1,30 2,00 0,28 0,45 0,60 1,00 1,40 2,00 0,40 0,60 0,85 1,35 1,90 2,70 Test method: see 4.4 of IEC 61212-2. EN 61212-3-2:2006 10 Table 5 Departure from st
44、raightness for round moulded tubes Nominal external diameter D mm Maximum deviation mm D 8 8 L2D 8 6 L2Test method: see 4.5 of IEC 61212-2. The deviation from straightness of any tube shall not exceed the appropriate limiting value given above, where L is the length of the tube in metres. EN 61212-3
45、-2:2006 11 Table6Propertyrequirementsforround moulded tubesTypeRemarksPropertyMethod oftestin IEC61212-2 (subclause)No.)UnitMaximum or minimum EP CC31 PFCC 31 PFCC 32 PFCC 33 PF CP31 PF CP32 Flexuralstrength perpendicular to laminations5.1 MPa Minimum80 80 80 80 80 80 Generallyapplicable to tubesofi
46、nternaldiameter greater than 100 mmbutto alltubeswhere satisfactorytestpiecescan be produced.For tubesofinternaldiameter lessthan 100 mmhowever,thetestfor cohesion between layersisan alternative method.Axialcompressive strength 5.2 MPa Minimum125 100 100 100 70 100 Cohesion between layers5.3 MPa Min
47、imum100 90 90 90 60 70 Applicable onlyto tubesofnominalinternaldiameter notgreaterthan 100 mm.Breakdownvoltage at90 C inoilparalleltolaminations6.1 kVMinimum40 5 5 5 10 30 The 20 sstep-by-step testand the 1 min prooftestforbreakdownvoltageat90C inoil,parallelto laminations,are alternatives.Electrics
48、trength at90 C inoilperpendicular to laminations6.1 kV/mmMinimumSee Table 7 Applicable onlyto tubesofnominalwallthicknessnotgreaterthan 3 mm.Insulationresistanceafterimmersioninwater6.2 MMinimum75 10 5 1 0,1 75 Applicable to tubesofminimum10 mmnominalexternaldiameter and 8 mmnominalinternaldiameter.
49、Dissipation factor 1 MHz 48Hzto62Hz6.3 Maximum(0,05) - - - - - Conformance with the requirementfor eithertestconstitutesconformance with the specification in thisrespect.Permittivity1 MHz 48Hzto62Hz6.3 Maximum(6,0) - - - - - Conformance with the requirementfor eithertestconstitutesconformance with the specification in thisrespect.Thermalendurance 7.1 TI(130) (120) (120) (120) (120) (120) Water absorption
