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1、BS EN 50483-2:2009BSI British StandardsTest requirements for lowvoltage aerial bundled cable accessories Part 2: Tension and suspension clamps for self supporting systemNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWraising standards worldwideBS EN 50483-2:2009BRITISH STANDARD
2、National forewordThis British Standard is the UK implementation of EN 50483-2:2009.The UK participation in its preparation was entrusted by Technical CommitteeGEL/20, Electric cables, to Subcommittee GEL/20/11, Cable accessories.A list of organizations represented on this committee can be obtained o
3、n 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.BSI 2009ISBN 978 0 580 56178 8ICS 29.240.20Compliance with a British Standard cannot confer immunity from legal obligations.This Briti
4、sh Standard was published under the authority of the StandardsPolicy and Strategy Committee on 31 March 2009Amendments issued since publicationAmd. No. Date Text affectedBS EN 50483-2:2009EUROPEAN STANDARDEN 50483-2NORME EUROPENNEEUROPISCHE NORM January 2009 ICS 29.240.20English versionTest requirem
5、ents for low voltage aerial bundled cable accessories - Part 2: Tension and suspension clamps for self supporting systemPrescriptions relatives aux essaisdes accessoires pour rseaux ariens basse tension torsads -Partie 2: Matriels dancrageet de suspension pour rseaux ariensen conducteurs isols torsa
6、ds auto-portsPrfanforderungen fr Bauteile fr isolierteNiederspannungsfreileitungen -Teil 2: Abspann- und Tragklemmenfr selbsttragende isolierte FreileitungsseileThis European Standard was approved by CENELEC on 2008-12-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations
7、 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 CENELEC member.This Europe
8、an 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 versions.CENELEC members are the
9、 national electrotechnical committees of Austria, Belgium, Bulgaria, 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, Slovenia, Spain,
10、Sweden, Switzerland and the United Kingdom.CENELECEuropean Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische NormungCentral Secretariat: avenue Marnix 17, B - 1000 Brussels 2009 CENELEC -All rights of exploitation
11、in any form and by any means reserved worldwide for CENELEC members.Ref. No. EN 50483-2:2009 EForewordThis European Standard was prepared by a sub-group of W G 11 of the Technical CommitteeCENELEC TC 20, Electric cables.The text of the draft was submitted to the formal vote and was approved by CENEL
12、EC asEN 50483-2 on 2008-12-01.The following dates were fixed:national standard or by endorsement(dop)2009-12-01latest date by which the national standards conflicting with the EN have to be withdrawn(dow)2011-12-01latest date by which the EN has to be implemented at national level by publication of
13、an identicalThis is Part 2 of CENELEC standard EN 50483 “Test requirements for low voltage aerial bundled cable accessories”, which has six parts:Part 1: Generalities;Part 2: Tension and suspension clamps for self supporting system;Part 3: Tension and suspension clamps for neutral messenger system;P
14、art 4: Connectors;Part 5: Electrical ageing test;Part 6: Environmental testing._BS EN 50483-2:2009EN 50483-2:2009 25 Contents1Scope . 42Normative references . 43Terms and definitions . 44Symbols . 65Characteristics . 66Marking . 67General test conditions . 67.1Mechanical tests . 67.2Temperature . 68
15、Type tests . 78.1Type tests for tension clamps . 78.2Type tests for suspension clamps . 128.3Dielectrical voltage tests . 208.4Clamp bolt tightening test . 218.5Environmental tests . 22Bibliography . 26FiguresFigure 1 Tension clamps Tensile tests . 8Figure 2 Suspension clamp Tensile tests . 13Figure
16、 3 Slip test at ambient temperature . 15Figure 4 Test arrangement for slip test at high temperature . 16Figure 5 Cycle and temperature profile . 18TablesTable 1 Static loads. 10Table 2 Static loads. 11Table 3 Tensile loads . 13Table 4 Tensile loads . 191ScopeEN 50483 series applies to overhead line
17、fittings for tensioning, supporting and connecting aerial bundled cables (ABC) of rated voltage U0/U (Um): 0,6/1 (1,2) kV.This Part 2 applies to tensioning devices consisting of tension and suspension clamps designed to be used for installation of self supporting ABC defined in HD 626.Tests describe
18、d in this document are type tests.NOTE This European standard does not invalidate existing approvals of products achieved on the basis of national standards and specifications and/or the demonstration of satisfactory service performance. However, products approved according to such national standard
19、s or specifications cannot directly claim approval to this European Standard. It may be possible, subject to agreement between supplier and purchaser, and/or the relevant conformity assessment body, to demonstrate that conformity to the earlier standard can be used to claim conformity to this standa
20、rd, provided an assessment is made of any additional type testing that may need to be carried out. Any such additional testing that is part of a sequence of testing cannot be done separately.2Normative referencesThe following referenced documents are indispensable for the application of this documen
21、t. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.EN 50483 series, Test requirements for low voltage aerial bundled cable accessoriesHD 626, Overhead distribution cables of rated voltage U
22、o/U(Um): 0,6/1 (1,2) kVIEC 60050-461, International Electrotechnical Vocabulary (IEV) Part 461: Electric cables3Terms and definitionsFor the purposes of this document, the terms and definitions given in IEC 60050-461 and the following apply.3.1aerial bundled cable (ABC)aerial cable consisting of a g
23、roup of insulated conductors which are twisted together including, or not, a non insulated conductorIEV 461-08-02, modifiedNOTE The terms bundled conductors, bundled cables, bundled cores, conductor bundles and bundle could be used as equivalent to the term aerial bundled cable (ABC).3.2aerial-insul
24、ated-cableinsulated cable designed to be suspended overhead and outdoorsIEV 461-08-013.3angle of deviationcomplementary angle to the angle defined by the two parts of the cable on both sides of the suspension clamp3.4clamp boltbolt which tightens two parts of a clamp together3.5conductor insulationi
25、nsulation applied on a conductorIEV 461-02-02, modified3.6conductor (of a cable)part of a cable which has the specific function of carrying currentIEV 461-01-013.7coreassembly comprising conductor and its own insulationIEV 461-04-04, modified3.8fixture (or fitting)device for attaching ABC tension or
26、/and suspension clamps to a pole or to a wall3.9insulation (of a cable)insulating materials incorporated in a cable with the specific function of withstanding voltageIEV 461-02-013.10minimum breaking load (MBL)minimum breaking load of the conductor given by HD 626 or the cable manufacturer if not de
27、fined in the standard, or minimum breaking load of the clamp given by the clamp manufacturer3.11self supporting systemaerial insulated system where all the cores of the ABC contribute to its support3.12sheathuniform and continuous tubular covering of metallic or non metallic material, generally extr
28、udedIEV 461-05-033.13suspension clampdevice which attaches an aerial insulated cable to a fixture in order to carry its weight and any specified loadingIEV 461-18-02, modified3.14tension clampdevice which firmly attaches an aerial insulated cable to a fixture and is designed to transmit the specifie
29、d mechanical tension in the cable or messenger to the supporting structureIEV 461-18-01, modified3.15type testtest required to be made before supplying a type of material covered by this standard on a general commercial basis, in order to demonstrate satisfactory performance characteristics to meet
30、the intended applicationNOTE These tests are of such a nature that, after they have been made, they need not be repeated unless changes are made to the accessory materials, design or type of manufacturing process which might change the performance characteristics.4Symbolsg15slippage after 15 cyclesg
31、250slippage after 250 cyclesDcircumscribed diameter of conductor bundle (mm)resistivity (m) maximum angle () of deviation of a suspension clamp as recommended by the manufacturer or specified by the customerTtension (N)Fsliding force (N)5CharacteristicsThese fittings shall be capable of supporting t
32、he tensile loads applied to the ABC for which they are designed in accordance with the following tests.Tension and suspension equipment shall be designed to avoid any direct or accidental contact between conductors and between any phase and metallic parts of the clamp.6MarkingSee Clause 6 of EN 5048
33、3-1.7General test conditions7.1Mechanical testsSee Clause 9 of EN 50483-1.7.2TemperatureSee Clause 9 of EN 50483-1.8Type tests8.1Type tests for tension clampsThe performance characteristics of all tension clamps shall be proven by satisfactorily undergoing the range of tests listed below. Each clamp
34、 shall be tested for the smallest and largest bundled conductor size for which it is marked.The following type tests shall be carried out.TestSubclauseTensile test at ambient temperature8.1.1Breaking load test8.1.2Tensile test at high temperature8.1.3Tensile test at low temperature8.1.4Dielectrical
35、voltage test (clamp)8.3.1Dielectrical voltage test (ABC)8.3.2Clamp bolt tightening test8.4Environmental tests8.5NOTE The test procedures for 3 core and 4 core ABC are similar.8.1.1Tensile test at ambient temperature8.1.1.1PrincipleThe tension clamps shall be subjected to high mechanical loads at amb
36、ient temperature in order to ensure that they are capable of sustaining loads likely to be encountered in service without being damaged or damaging the conductor.NOTE Test may be carried out on samples which have been subjected to the climatic ageing test or on the cores(see 8.5.2.1)8.1.1.2Test arra
37、ngementTwo tension clamps shall be assembled on to the ABC, in accordance with the manufacturers instructions, and fitted into a tensile testing machine as shown in Figure 1. The length of tails on the unloaded side of the clamps shall be a minimum of 350 mm and with a minimum radius of 250 mm.The span between the two clamps shall be a minimum of 100 D, where D is the circumscribed diameter of the ABC.The test shall be carried out at ambient temperature.
