1、Test requirements for lowvoltage aerial bundledcable accessories Part 6: Environmental testingBS EN 50483-6:2009raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI British StandardsNational forewordThis British Standard is the UK implementation of EN
2、50483-6:2009.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 onrequest to its secretary.This publication does not purport to include
3、 all the necessary provisions of acontract. Users are responsible for its correct application. BSI 2009ISBN 978 0 580 56182 5ICS 29.240.20BRITISH STANDARDBS EN 50483-6:2009Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the au
4、thority of the StandardsPolicy and Strategy Committee on 31 March 2009 Amendments issued since publicationAmd. No. Date Text affectedEUROPEAN STANDARD EN 50483-6 NORME EUROPENNE EUROPISCHE NORM January 2009 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisatio
5、n Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: avenue Marnix 17, B - 1000 Brussels 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50483-6:2009 E ICS 29.240.20 English version Test re
6、quirements for low voltage aerial bundled cable accessories - Part 6: Environmental testing Prescriptions relatives aux essais des accessoires pour rseaux ariens basse tension torsads - Partie 6: Essais denvironnement Prfanforderungen fr Bauteile fr isolierte Niederspannungsfreileitungen - Teil 6: U
7、mweltprfungen This European Standard was approved by CENELEC on 2008-12-01. 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 bi
8、bliographical references 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 responsibi
9、lity 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 national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Gre
10、ece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 50483-6:2009EN 50483-6:2009 2 Foreword This European Standard was prepared by a sub-group of W
11、G 11 of the Technical Committee CENELEC TC 20, Electric cables. The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50483-6 on 2008-12-01. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an ide
12、ntical national standard or by endorsement (dop) 2009-12-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2011-12-01 This is Part 6 of CENELEC standard EN 50483 “Test requirements for low voltage aerial bundled cable accessories”, which has six parts:
13、 Part 1: Generalities; Part 2: Tension and suspension clamps for self supporting system; Part 3: Tension and suspension clamps for neutral messenger system; Part 4: Connectors; Part 5: Electrical ageing test; Part 6: Environmental testing. _ BS EN 50483-6:2009 3 EN 50483-6:2009 Contents 1 Scope . 4
14、2 Normative references . 4 3 Terms and definitions . 4 4 Symbols . 5 5 Marking 5 6 (Spare) . 5 7 (Spare) . 5 8 Type tests 6 8.1 Number of test samples and number of cycles . 6 8.2 Requirements 6 8.3 Cleaning 6 8.4 Corrosion ageing tests 6 8.5 Climatic ageing test . 10 Annex A (informative) Salt mist
15、 and gas atmosphere corrosion test justification . 18 Annex B (informative) Example of specific reaction to obtain sulphur dioxide . 19 Annex C (informative) Climatic areas . 20 Annex D (informative) Test equipment . 21 Bibliography 24 Figures Figure 1 Suggested arrangement for connections Optional
16、immersion test Method 1 9 Figure 2 Informative diagram of the conditioning cycle Weekly cycle . 15 Figure 3 Temperature Radiation Time relationships . 17 Figure D.1 Typical test arrangement 21 Tables Table 1 Quantities for acid solution components 10 Table 2 Spectral energy distribution and permitte
17、d tolerances . 17 Table C.1 Climatic conditions Appropriate tests 20 BS EN 50483-6:2009EN 50483-6:2009 4 1 Scope EN 50483 series applies to overhead line fittings for tensioning, supporting and connecting aerial bundled cables (ABC) of rated voltage U0/U (Um): 0,6/1 (1,2) kV. The objective is to pro
18、vide a method of testing the suitability of accessories when used under normal operating conditions with low voltage aerial bundled cables complying with HD 626. This Part 6 defines the environmental tests in particular the climatic and corrosion ageing tests. The objective of these tests is to pred
19、ict the behaviour of ABC accessories when subjected to sun radiation, to weather conditions (humidity, spraying water, heat, cold) and pollution. EN 50483-1, EN 50483-2, EN 50483-3 and EN 50483-4 specify which type tests included in this part of the standard are needed. Climate differs across Europe
20、 and in order to meet the differing geographic climatic conditions it is necessary to provide a range of tests to meet these variations. A range of optional, additional tests is provided to meet the varying climatic needs and these should be agreed between the customer and the supplier (see Annex C)
21、. 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 standards or specifications cannot direc
22、tly 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 standard, provided an assessment is ma
23、de 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. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only
24、 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 accessories EN 60068-2-5, Environmental testing Part 2: Tests Test Sa: Simulated solar radiati
25、on at ground level (IEC 60068-2-5) EN 60068-2-9:1999, Environmental testing Part 2: Tests Guidance for solar radiation testing (IEC 60068-2-9:1975 + A1:1984) EN 60068-2-11:1999, Environmental testing Part 2: Tests Test Ka: Salt mist (IEC 60068-2-11:1981) EN ISO 3231, Paints and varnishes Determinati
26、on of resistance to humid atmospheres containing sulfur dioxide (ISO 3231) IEC 60050-461, International Electrotechnical Vocabulary (IEV) Part 461: Electric cables 3 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 60050-461 and the following apply. 3.1
27、 aerial bundled cable (ABC) aerial cable consisting of a group of insulated conductors which are twisted together including, or not, a non insulated conductor IEV 461-08-02, modified NOTE The terms bundled conductors, bundled cables, bundled cores, conductor bundles and bundle could be used as equiv
28、alent to the term aerial bundled cable (ABC). BS EN 50483-6:2009 5 EN 50483-6:2009 3.2 aerial-insulated-cable insulated cable designed to be suspended overhead and outdoors IEV 461-08-01 3.3 conductor (of a cable) part of a cable which has the specific function of carrying current IEV 461-01-01 3.4
29、core assembly comprising conductor and its own insulation IEV 461-04-04, modified 3.5 fixture (or fitting) device for attaching ABC tension or/and suspension clamps to a pole or to a wall 3.6 insulation (of a cable) insulating materials incorporated in a cable with the specific function of withstand
30、ing voltage IEV 461-02-01 3.7 type test test 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 the intended application NOTE These tests are of such a nature that, a
31、fter 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. 4 Symbols 1and 2 wavelength of UV light source Emmean energy received by the samples E radiated energy o
32、f the lamp n number of cycles (defined in appropriate part of this standard) temperature measured by the black standard thermometer E temperature of the chamber 5 Marking See Clause 6 of EN 50483-1. 6 (Spare) 7 (Spare) BS EN 50483-6:2009EN 50483-6:2009 6 8 Type tests 8.1 Number of test samples and n
33、umber of cycles The number of samples and number of cycles for each of the following tests are included in each relevant part of EN 50483. 8.2 Requirements The requirements for the following tests shall be as given in the relevant parts of this standard. 8.3 Cleaning On completion of the environment
34、al tests, and between different environmental tests when carried out as a sequence, the samples shall, unless otherwise specified, be cleaned using running tap water for 5 min to 10 min and then by using demineralised water for the same period. The temperature of the water shall not exceed 35 C. The
35、 samples shall be dried either by shaking by hand or using air blast to remove droplets of water. 8.4 Corrosion ageing tests These tests shall be carried out when the products contain metallic parts (or parts protected with a metallic coating), which are exposed to the atmosphere. A justification of
36、 the tests is given in Annex A. 8.4.1 Salt mist test 8.4.1.1 Principle This test exposes samples to a neutral salt spray (concentration of NaCl: 5 %). 8.4.1.2 Test equipment The test equipment is defined in Clause 3 of EN 60068-2-11:1999. 8.4.1.3 Test arrangement The preparation and use of the salt
37、solution is defined in Clause 4 of EN 60068-2-11:1999. 8.4.1.4 Procedure The test procedure is defined in Clause 7 of EN 60068-2-11:1999. The connectors or accessories shall be installed as defined in the relevant parts of EN 50483. The cycle duration prescribed, in accordance with EN 60068-2-11:199
38、9, 7.6 shall be 7 days. No cleaning of the samples shall be carried out between cycles. 8.4.1.5 Test reports The test report shall include the duration of exposure and the concentration and pH of the salt solution. 8.4.2 Gas atmosphere tests NOTE 1 Two methods of testing are provided to meet the req
39、uirements of the gas atmosphere test. The first, Method 1, is based on the test procedure that has been used for many years in some countries. These countries have gained experience of both the procedures and outcomes of the test. The second, Method 2 is provided as an alternative as it requires a l
40、ess complicated test environment and is based on ASTM G85. NOTE 2 This test may be necessary for accessories that are used in areas subjected to heavy industrial pollution. 8.4.2.1 Gas atmosphere test (Method 1) A justification of the tests is given in Annex A. BS EN 50483-6:2009 7 EN 50483-6:2009 8
41、.4.2.1.1 Principle This test exposes samples to a humidity-saturated atmosphere rich with sulphur dioxide (initial concentration SO2: 0,066 7 % (667 parts per million by volume) with defined conditions of temperature and pressure. 8.4.2.1.2 Test equipment The samples and supports shall be installed
42、in a hermetic test chamber, with a humidity-saturated atmosphere in the presence of sulphur dioxide. This test chamber shall be made of inert material. The test shall be made in accordance with EN ISO 3231. 8.4.2.1.3 Preparation of SO2atmosphere After closing the chamber, sulphur dioxide (concentrat
43、ion = 0,066 7 %) shall be introduced from either a gas bottle or using a specific reaction in the chamber as described in Annex B. 8.4.2.1.4 Procedure Each period, or basic module, shall comprise a weekly sequence. 7 cycles of 24 h (168 h total), each cycle includes an 8 h exposure with saturated hu
44、midity and high sulphur dioxide atmosphere (a total exposure of 56 h), and a 16 h exposure at the laboratory atmosphere (a total exposure of 112 h). NOTE Exposure to laboratory atmosphere may be achieved by opening the chamber door. It is the intention of this phase to allow clean air to circulate a
45、round the test samples. During the 8 h period, the temperature is raised to (40 3) C. During the 16 h period the chamber remains at ambient temperature and finally the water and sulphur dioxide atmosphere is renewed to the concentration as specified in 8.4.2.1.3. 8.4.2.1.5 Cleaning When the specimen
46、s are exposed successively to a neutral salt spray and then to a humidity saturated atmosphere with sulphur dioxide, the procedure shall be - 7 cycles of 24 h in salt, - no cleaning, - 7 cycles of 24 h in sulphur dioxide, - cleaning in accordance with 8.3. 8.4.2.2 Gas atmosphere test (Method 2) 8.4.
47、2.2.1 Procedure The test samples shall be subjected to a cyclic corrosion test consisting of 1 h period of drying and 1 h period of fog. The test shall consist of 500 cycles (1 000 h). The fog period shall be at ambient temperature, while the drying time shall be at a higher temperature. NOTE Experi
48、ence indicates that longer cycle times may produce slower degradation. 8.4.2.2.2 Test equipment The apparatus for salt spray (fog) testing consists of a fog chamber, a salt solution reservoir, a supply of suitable conditioned compressed air, one or more atomising nozzles, specimen supports, provisio
49、n for heating the chamber, and necessary means of control. The size and detailed construction of the cabinet are optional, provided the conditions obtained meet the requirements of this standard. The material of construction shall be such that it will not be affected by the corrosiveness of the fog. The chamber shall be designed so that drops of solution that accumulate on the ceiling or cover of the chamber do not fall on the specimen being test
