《bs英國標準】bs en 504836 test requirements for low voltage aerial bundled cable accessories — part 6 environmental testing》由會員分享，可在線閱讀，更多相關《bs英國標準】bs en 504836 test requirements for low voltage aerial bundled cable accessories — part 6 environmental testing（30頁珍藏版）》請在裝配圖網(wǎng)上搜索。
1、如果買家需要PDF格式的本標準，可以提供郵箱給我（前提是購買了本標準），我免費發(fā)送到你的郵箱。
標
標
準
王
國
豆丁網(wǎng)標準下載地址
BS EN 50483-6:2009
BSI British Standards
Test requirements for low
voltage aerial bundled cable accessories —
Part 6: Environmental testing
2、
NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW
raising standards worldwide?
BS EN 50483-6:2009
BRITISH STANDARD
National foreword
This British Standard is the UK implementation of EN 50483-6:2009.
The UK participation i
3、n its preparation was entrusted by Technical Committee
GEL/20, Electric cables, to Subcommittee GEL/20/11, Cable accessories.
A list of organizations represented on this committee can be obtained on request to its secretary.
This publication does not purport to include all the necessary prov
4、isions of a contract. Users are responsible for its correct application.
?BSI 2009
ISBN 978 0 580 56182 5
ICS
Compliance with a British Standard cannot confer immunity from legal obligations.
This British Standard was published under the authority of the Standards
Policy and Str
5、ategy Committee on 31 March 2009
Amendments issued since publication
Amd. No. Date Text affected
EUROPEAN STANDARD EN 50483-6
NORME EUROPéENNE
EUROP?ISCHE NORM January 2009
ICS 29.240.20
English version
Test requirements for low voltage aerial bundled cable acces
6、sories - Part 6: Environmental testing
Prescriptions relatives aux essais
des accessoires pour réseaux aériens basse tension torsadés -
Partie 6: Essais d’environnement
Prüfanforderungen für Bauteile für isolierte
Niederspannungsfreileitungen - Teil 6: Umweltprüfungen
7、
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 bibliogr
8、aphical 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 res
9、ponsibility 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, G
10、ermany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization Com
11、ité Européen de Normalisation Electrotechnique Europ?isches Komitee für 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 50483-6:2
12、009 E
Foreword
This European Standard was prepared by a sub-group of W 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:
13、
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
– latest date by which the EN has to be implemented at national level by publication of an identical
14、
This is Part 6 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 neut
15、ral messenger system;
– Part 4: Connectors;
– Part 5: Electrical ageing test;
– Part 6: Environmental testing.
__________
Contents
1 Scope ............................................................................................................................... 4
2 No
16、rmative references ....................................................................................................... 4
3 Terms and definitions ....................................................................................................... 4
4 Symbols ...............................
17、............................................................................................ 5
5 Marking ............................................................................................................................ 5
6 (Spare) ......................................................
18、....................................................................... 5
7 (Spare) ............................................................................................................................. 5
8 Type tests .......................................................................
19、................................................. 6
8.1 Number of test samples and number of cycles ......................................................... 6
8.2 Requirements .......................................................................................................... 6
8.3 Cleanin
20、g .................................................................................................................. 6
8.4 Corrosion ageing tests ............................................................................................ 6
8.5 Climatic ageing test ................................
21、............................................................... 10
Annex A (informative) Salt mist and gas atmosphere corrosion test justification ................... 18
Annex B (informative) Example of specific reaction to obtain sulphur dioxide ....................... 19
Annex C (informativ
22、e) Climatic areas ................................................................................... 20
Annex D (informative) Test equipment ................................................................................. 21
Bibliography.......................................................
23、................................................................... 24
Figures
Figure 1 – Suggested arrangement for connections – Optional immersion test Method 1 ........ 9
Figure 2 – Informative diagram of the conditioning cycle – W eekly cycle ............................... 15
Figu
24、re 3 – Temperature – Radiation – Time relationships ..................................................... 17
Figure D.1 – Typical test arrangement .................................................................................. 21
Tables
Table 1 – Quantities for acid solution components
25、 ................................................................ 10
Table 2 – Spectral energy distribution and permitted tolerances ........................................... 17
Table C.1 – Climatic conditions – Appropriate tests .............................................................. 2
26、0
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 provide a method of testing the suitability of accessories when used under normal operatin
27、g 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 predict the behaviour of ABC accessories when subjected to sun rad
28、iation, 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 and in order to meet the differing geographic cl
29、imatic 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).
NOTE This European Standar
30、d 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 di
31、rectly 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, provide
32、d 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.
2 Normative references
The following referenced documents are indispensable for the application of this document
33、. 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 accessories
EN 60068-2-5, Environmental testing – Part 2: Te
34、sts – Test Sa: Simulated solar radiation 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 60068-2-1
35、1:1981)
EN ISO 3231, Paints and varnishes – Determination 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 term
36、s and definitions given in IEC 60050-461 and the following apply.
3.1
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
37、conductors, bundled cables, bundled cores, conductor bundles and bundle could be used as equivalent to the term aerial bundled cable (ABC).
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
38、 cable which has the specific function of carrying current
[IEV 461-01-01]
3.4
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
39、(of a cable)
insulating materials incorporated in a cable with the specific function of withstanding 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
40、performance characteristics to meet the intended application
NOTE 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 per
41、formance characteristics.
4 Symbols
λ1 and λ2 wavelength of UV light source
Em mean energy received by the samples
E radiated energy of the lamp
n number of cycles (defined in appropriate part of this standard)
θ temperature measured by the black standard thermometer
θE temper
42、ature of the chamber
5 Marking
See Clause 6 of EN 50483-1.
6 (Spare)
7 (Spare)
8 Type tests
8.1 Number of test samples and number 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.
43、
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 environmental tests, and between different environmental tests when carried out as a sequence, the samples shall, unless otherwise specified
44、, 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 samples shall be dried either by shaking by hand or using air blast to remove droplets of water.
8.4 Corrosion age
45、ing 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 the tests is given in Annex A.
8.4.1 Salt mist test
8.4.1.1 Principle
This test exposes samples to a
46、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 solution is defined in Clause 4 of EN 60068-2-11:1999.
8.4.1.4 Procedure
The test pr
47、ocedure 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 60068-2-11:1999, 7.6 shall be 7 days.
No cleaning of the samples shall be carried out between
48、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 requirements of the gas atmosphere test. The first, Method 1, is bas
49、ed 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 less complicated test environment and is based on ASTM G85.
N
50、OTE 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.
8.4.2.1.1 Principle
This test exposes samples to a humidity-saturated a
51、tmosphere 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 in a hermetic test
52、 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 SO2 atmosphere
After closing the chamber, sulphur dioxide (concentration
53、 = 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 saturate
54、d humidity 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 c
55、irculate around 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
56、.
8.4.2.1.5 Cleaning
W hen the specimens 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 accorda
57、nce with 8.3.
8.4.2.2 Gas atmosphere test (Method 2)
8.4.2.2.1 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 t
58、emperature, while the drying time shall be at a higher temperature.
NOTE Experience 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 suita
59、ble conditioned compressed air, one or more atomising nozzles, specimen supports, provision 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 o
60、f 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 tested. The nozzle or nozzles shall be directed so that none of
61、the spray can impinge directly on the test specimen.
The solution shall not be recycled.
8.4.2.2.3 Atomisation and quantity of fog
At least two clean fog collectors shall be placed within the exposure zone so that drops of solution from the test specimen or any other source are not co
62、llected. The collectors shall be positioned in the proximity of the specimens, one near to a nozzle and the other, as far as possible from all nozzles. It shall be secured so that, for each 80 cm2 of horizontal collecting area, fog accumulates in each collector at a rate between 1,0 ml to 2,0 ml of
63、solution per hour, based on an average run of at least 16 h continuous spray.
NOTE Suitable collecting devices are glass funnels with the stems inserted through stoppers into graduated cylinders or crystallising dishes. Funnels and dishes with a diameter of 100 mm have an area of a
64、bout 80 cm2.
8.4.2.2.4 Salt solution
The salt solution shall consist of 0,05 % sodium chloride (NaCl) and 0,35 % ammonium sulphate (NH4)2(SO4) by mass. The water shall be distilled or de-ionised water. The sodium chloride shall be substantially free of nickel and copper and shall c
65、ontain, on the dry basis, not more than 0,1 % of sodium iodide and not more than 0,3 % of total impurities. The ammonium sulphate shall contain not more than 0,3 % total impurities. Some salts contain additives that may act as corrosion inhibitors; careful attention shall be given to
66、the chemical content of the salt.
The pH of the collected solution shall be between 5,0 and 5,4.
8.4.2.2.5 Air supply
The compressed air supply to the nozzle or nozzles, for atomising the salt solution, shall be free of oil and dirt and maintain the air supply between 70 kPa and 170 kPa.
8.4.2.2.6 Procedure
The test shall consist of cycles of a 1 h drying period and a 1 h fog period. The electrolyte shall be a solution of sodium chloride and ammonium sulphate. The fog period shall
bs英國標準】bs en 504836 test requirements for low voltage aerial bundled cable accessories — part 6 environmental testing
