1、BRITISH STANDARDBS EN 61212-2:2006Insulating materials Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes Part 2: Methods of testThe European Standard EN 61212-2:2006 has the status of a British StandardICS 29.035.01g49g50g3g38g50g51g60g44g49g42g3g5
2、8g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Licensed Copy: Wang Bin, na, Wed Apr 11 07:44:15 GMT+00:00 2007, Uncontrolled Copy, (c) BSIBS EN 61212-2:2006This British Standard wa
3、s published under the authority of the Standards Policy and Strategy Committee on 31 January 2007 BSI 2007ISBN 978 0 580 50101 2National forewordThis British Standard was published by BSI. It is the UK implementation of EN 61212-2:2006. It is identical with IEC 61212-2:2006. It supersedes BS EN 6121
4、2-2:1996 which is withdrawn.The UK participation in its preparation was entrusted by Technical Committee GEL/15, Material specifications, to Subcommittee GEL/15/3, Rigid fibrous reinforced laminates for electrical purposes.A list of organizations represented on GEL/15/3 can be obtained on request to
5、 its secretary.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 CommentsLicensed
6、 Copy: Wang Bin, na, Wed Apr 11 07:44:15 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEUROPEAN STANDARD EN 61212-2 NORME EUROPENNE EUROPISCHE NORM December 2006 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektro
7、technische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61212-2:2006 E ICS 29.035.01 Supersedes EN 61212-2:1996English version Insulating materials - Indus
8、trial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes Part 2: Methods of test (IEC 61212-2:2006) Matriaux isolants - Tubes et barres industriels, rigides, ronds, stratifis, base de rsines thermodurcissables, usages lectriquesPartie 2: Mthodes dessai (CEI 61
9、212-2:2006) Isolierstoffe - Runde Rohre und Stbe aus technischen Schichtpressstoffen auf der Basis warmhrtender Harze fr elektrotechnische Zwecke Teil 2: Prfverfahren (IEC 61212-2:2006) This European Standard was approved by CENELEC on 2006-11-01. CENELEC members are bound to comply with the CEN/CEN
10、ELEC 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
11、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 versi
12、ons. CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia,
13、 Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: Wang Bin, na, Wed Apr 11 07:44:15 GMT+00:00 2007, Uncontrolled Copy, (c) BSIForeword The text of document 15/273/FDIS, future edition 2 of IEC 61212-2, prepared by IEC TC 15, Solid electrical insulating materials, was submi
14、tted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61212-2 on 2006-11-01. This European Standard supersedes EN 61212-2:1996. The main changes from EN 61212-2:1996 are as follows: added application use and safety statements; reformatted document to bring it up to current IEC docu
15、ment format; test method references updated. 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) 2007-08-01 latest date by which the national standards conflicting with the EN hav
16、e to be withdrawn (dow) 2009-11-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61212-2:2006 was approved by CENELEC as a European Standard without any modification. _ 2 EN 61212-2:2006Licensed Copy: Wang Bin, na, Wed Apr 11 07:44:15 GMT+00:00 2
17、007, Uncontrolled Copy, (c) BSIINTERNATIONAL STANDARD IEC61212-2Second edition2006-04Insulating materials Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes Part 2: Methods of test Reference number IEC 61212-2:2006(E) EN 61212-2:2006Licensed Copy: W
18、ang Bin, na, Wed Apr 11 07:44:15 GMT+00:00 2007, Uncontrolled Copy, (c) BSICONTENTS INTRODUCTION.5 1 Scope.6 2 Normative references .6 3 Conditioning of specimens7 4 Dimensions 7 4.1 General .7 4.2 External diameter 7 4.3 Internal diameter .8 4.4 Wall thickness .9 4.5 Departure from straightness App
19、licable to all tubes up to 300 mm diameter .10 5 Mechanical tests.10 5.1 Flexural strength perpendicular to laminations.10 5.2 Axial compressive strength12 5.3 Cohesion between layers 14 6 Electrical tests15 6.1 Electric strength and breakdown voltage .15 6.2 Insulation resistance after immersion in
20、 water .17 6.3 Dissipation factor and permittivity (tube only) 18 7 Other tests .18 7.1 Thermal endurance .18 7.2 Water absorption.19 7.3 Density19 7.4 Flammability19 Annex ZA (normative) Normative references to international publications with their Figure 1 Preparation of test specimen from a large
21、 tube for testing flexural strength11 Figure 2 Position of tube in testing machine for testing cohesion between layers .14 Figure 3 Test specimens and electrodes for testing electric strength of tubes 17 Figure 4 Test specimens for flammability testing20 4 EN 61212-2:2006corresponding European publi
22、cations.23 BIBLIOGRAPHY .22 Licensed Copy: Wang Bin, na, Wed Apr 11 07:44:15 GMT+00:00 2007, Uncontrolled Copy, (c) BSIINTRODUCTION This part of IEC 61212 is one of a series which deals with industrial, rigid, round, laminated tubes and rods based on thermosetting resins for electrical purposes. The
23、 materials are similar to those described in IEC 62011-1 but of different cross-section. This series, under the general heading Insulating materials Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes, consists of three parts: Part 1: Definitions, de
24、signations and general requirements (IEC 61212-1) Part 2: Methods of test (IEC 61212-2) Part 3: Specifications for individual materials (IEC 61212-3) 5 EN 61212-2:2006Licensed Copy: Wang Bin, na, Wed Apr 11 07:44:15 GMT+00:00 2007, Uncontrolled Copy, (c) BSIINSULATING MATERIALS INDUSTRIAL RIGID ROUN
25、D LAMINATED TUBES AND RODS BASED ON THERMOSETTING RESINS FOR ELECTRICAL PURPOSES Part 2: Methods of test 1 Scope This part of IEC 61212 describes methods of test for the materials defined in IEC 61212-1. Materials which conform to this specification meet established levels of performance. However, t
26、he 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 specification alone. Safety warning: It is the responsibility of the user of the methods contained or referred to in
27、 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 dated references, only the edition cited applies. For undated references, the latest edition of the referenced document
28、(including any amendments) applies. IEC 60167:1964, Methods of test for the determination of the insulation resistance of solid insulating materials IEC 60212:1971, Standard conditions for use prior to and during the testing of solid electrical insulating materials IEC 60216-1:2001, Electrical insul
29、ating materials Properties of thermal endurance Part 1: Ageing procedures and evaluation of test results IEC 60216-2:2005, Electrical insulating materials Thermal endurance properties Part 2: Determination of thermal endurance properties of electrical insulating materials Choice of test criteria IEC
30、 60243-1:1998, Electrical strength of insulating materials Test methods Part 1: Tests at power frequencies IEC 60250:1969, Recommended methods for the determination of the permittivity and dielectric dissipation factor of electrical insulating materials at power, audio and radio frequencies includin
31、g metre wavelengths IEC 60296:2003, Fluids for electrotechnical applications Unused mineral oils for trans-formers and switchgear 6 EN 61212-2:2006Licensed Copy: Wang Bin, na, Wed Apr 11 07:44:15 GMT+00:00 2007, Uncontrolled Copy, (c) BSIIEC 60695-11-10:1999, Fire hazard testing Part 11-10: Test fla
32、mes 50 W horizontal and vertical flame test methods Amendment 1 (2003)1IEC 61212-1, Insulating materials Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes Part 1: General requirements IEC 61212-3 (all sheets), Insulating materials Industrial rigid
33、round laminated tubes and rods based on thermosetting resins for electrical purposes Part 3: Specifications for individual materials ISO 62:1999, Plastics Determination of water absorption ISO 178:2001, Plastics Determination of flexural properties ISO 604:2002, Plastics Determination of compressive
34、 properties ISO 1183-1:2004, Plastics Methods for determining the density and relative density of non-cellular plastics Part 1: Immersion method, liquid pyknometer method and titration method ISO 3611:1978, Micrometer callipers for external measurement ISO 3599:1976, Vernier callipers reading to 0,1
35、 and 0,05 mm ISO 6906:1984, Vernier callipers reading to 0,02 mm 3 Conditioning of specimens Unless otherwise specified, test specimens shall be conditioned immediately prior to testing for at least 24 h in standard atmosphere B according to IEC 60212 at a temperature of 23 C 2 K and a relative humi
36、dity of (50 5) %. Unless otherwise specified, each specimen shall be tested in the conditioning atmosphere or the tests shall commence within 3 min of removal of each specimen from the conditioning atmosphere. Where testing at an elevated temperature is required in a specification sheet of IEC 61212
37、-3, test specimens shall be conditioned for 1 h at the elevated temperature immediately before testing. 4 Dimensions 4.1 General All dimensions shall be measured in the “as received” condition. 4.2 External diameter 4.2.1 Test apparatus The external diameter of the tubes and rods shall be determined
38、 using one of the apparatus listed below: 1There exists a consolidated version 1.1 (2003) that includes IEC 60695-11-10 (1999) and its Amendment 1 (2003). 7 EN 61212-2:2006Licensed Copy: Wang Bin, na, Wed Apr 11 07:44:15 GMT+00:00 2007, Uncontrolled Copy, (c) BSIa) Nominal external diameter 100 mm A
39、n external screw type micrometer with an accuracy of 0,02 mm or better, according to ISO 3611, having faces with diameters between 6 mm and 8 mm. b) Nominal external diameter 100 mm and 500 mm A slide gauge (Vernier caliper) in accordance with ISO 3599. c) Nominal external diameter 500 mm A steel ta
40、pe, graduated in divisions of 0,5 mm with an accuracy of 0,1 mm or better. Any other means of measurement with the same or better accuracy may be used. In case of dispute, the specified apparatus shall be used. 4.2.2 Procedure For tubes or rods with nominal external diameter 500 mm, measure the exte
41、rnal diameter at three points along the length, but not less than 20 mm from the ends, generally at both ends and the middle. At each of these points, a minimum of three readings equally distributed around the circumference shall be taken. For tubes or rods with nominal external diameter 500 mm, mea
42、sure the circumference at three places along the length, distributed as above, and calculate the diameter. 4.2.3 Results For nominal external diameters 100 mm, the measured values shall be recorded to the nearest 0,02 mm. For nominal external diameters 100 mm and 500 mm, the measured values shall be
43、 recorded to the nearest 0,1 mm. For nominal external diameters 500 mm, the diameters shall be calculated from the measured circumferences and recorded to the nearest millimetre. 4.2.4 Report The arithmetic mean of the recorded values shall be reported as the diameter of the tube or rod. 4.3 Interna
44、l diameter 4.3.1 Test apparatus The internal diameter of tubes shall be determined using one of the instruments listed below. a) For tubes with nominal internal diameter 10 mm A tapered plug gauge or pin type micrometer with an accuracy of 0,02 mm or better. b) For tubes with nominal internal diamet
45、er 10 mm and 500 mm A slide gauge (Vernier caliper) in accordance with ISO 3599. 8 EN 61212-2:2006Licensed Copy: Wang Bin, na, Wed Apr 11 07:44:15 GMT+00:00 2007, Uncontrolled Copy, (c) BSIc) For tubes with nominal internal diameter 500 mm A graduated steel tape to measure the external circumference
46、 in accordance with 4.2.1 c). A slide gauge (Vernier caliper) to measure the wall thickness in accordance with 4 2.1. b). Any other means of measurement having the same accuracy as specified above or better may be used. In case of dispute, the specified apparatus shall be used. 4.3.2 Procedure a) Fo
47、r tubes with nominal internal diameter 10 mm Measure the internal diameter of the tube at both ends using a tapered plug gauge, or at three points equally spaced around the inside circumference at both ends using a pin type micrometer. b) For tubes with nominal internal diameter 10 mm and 500 mm Mea
48、sure the internal diameter of the tube at a minimum of three points equally spaced along the inside circumference at both ends. c) For tubes with nominal internal diameter 500 mm The internal diameter shall be calculated from the external diameter determined according to 4.2 and the wall thickness d
49、etermined according to 4.4. 4.3.3 Results For tubes with nominal internal diameter 10 mm measured using a tapered plug gauge or pin type micrometer, the values measured at the two ends shall be recorded to the nearest 0,02 mm. For tubes with nominal internal diameter 10 mm and 500 mm, measured using a slide gauge, the three values measured at the two ends shall be recorded to the nearest 0,1 mm. For tubes with nominal internal diameter
