1、BRITISH STANDARDBS EN50290-2-21:2002Incorporatingcorrigendum no. 1 andamendment no. 1Communicationcables Part 2-21: Common design rulesand construction PVC insulationcompoundsThe European Standard EN 50290-2-21:2001, incorporating amendmentA1:2007, has the status of a British StandardICS 29.035.20;2
2、9.060.20; 33.120.01; 33.120.10 - -21:2002+A1:2007Incorporatingcorrigenda March 2006and February 2016BS EN 50290-2-21:2002+A1:2007ISBN 978 0 580 87675 2Amendments issued since publicationAmd. No. Date Comments16125 Corrigendum No. 1March 2006 Addition of supersession details17302 31 August 2007 Imple
3、mentation of CENELEC amendment A1:2007: See national foreword31 March 2016 Implementation of CENELEC corrigendum February 2016: Table 1 corrected. Standard identifier also correctedThis British Standard was published under the authority of the Standards Policy and Strategy Committee on 22 January 20
4、02 The British Standards Institution 2016. Published by BSI Standards Limited 2016National forewordThis British Standard is the UK implementation of EN 50290-2-21:2001+A1:2007, incorporating corrigenda March 2006 and February 2016. It supersedes BS EN 50290-2-21:2002 which is withdrawn.The start and
5、 finish of text introduced or altered by amendment is indicated in the text by tags . Tags indicating changes to CENELEC text carry the number of the CENELEC amendment. For example, text altered by CENELEC amendment A1 is indicated by .The UK participation in its preparation was entrusted to Technic
6、al Committee EPL/46, Cables, wire and waveguides, radio frequency connectors and accessories for communication and signalling.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 provisions of
7、 a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 50290-2-21October 2001ICS 29.035.20; 33.120.10 Supersedes HD 624.1 S1:1994English versionCommunication cab
8、les Part 2-21: Common design rules and construction PVC insulation compoundsCbles de communicationPartie 2-21: Rgles de conceptioncommunes et construction Mlanges en PVC pour enveloppes isolantesKommunikationskabelTeil 2-21: Gemeinsame Regeln frEntwicklung und Konstruktion PVC-IsoliermischungenThis
9、European Standard was approved by CENELEC on 2001-03-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standardthe status of a national standard without any alteration.Up-to-date lists and bibliographical referen
10、ces concerning such national standards may be obtained on applicationto the CentralSecretariat 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
11、 into its own language and notifiedto the CentralSecretariat has the same statusas the official versions.CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherland
12、s, Norway, Portugal, Spain, Sweden, Switzerlandand UnitedKingdom.CENELECEuropean Committee forElectrotechnical StandardizationComit Europen de Normalisation ElectrotechniqueEuropisches Komitee fr Elektrotechnische NormungCentral Secretariat: ruede Stassart 35, B - 1050 Brussels 2001 CENELEC - All ri
13、ghts of exploitation in any form and by any means reserved worldwide for CENELEC members.Ref. No. EN 50290-2-21:2001 E+A1June 2007EN 50290-2-21:2001+A1June 2007Incorporating corrigendum February 2016EN 50290-2-21:2001 - 2 -ForewordThis European Standard was prepared by a joint working group of the T
14、echnical Committees CENELEC TC 46X, Communication cables, and CENELEC TC 86A, Optical fibres and optical fibre cables.The text ofthe draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN50290-2-21 on 2001-03-01.This European Standard supersedes HD624.1 S1:1994.The
15、following dates were fixed:Annexes designated“normative” are part of the body of the standard. In this standard, Annex A is normative.This European Standard has been prepared under the European Mandate M/212 given to CENELEC by the EuropeanCommissionand the European FreeTradeAssociation.latest date
16、by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement(dop) 2002-04-01latest date by which the national standards conflicting with the EN have to be withdrawn(dow) 2004-04-01Foreword to amendment A1This amendment to the European Sta
17、 ndard EN 50290-2-21: 2001 was prepared by th e TechnicalCommitt ee CENELEC TC 46X, Communicati on c ables.The te xt of th e draf t was submit te d to t he Unique Accept ance Procedure and was approved by CENELECas a mendment A 1 to E N 50290-2-21: 2001 on 2 007-03-01.The fo llowing dat es w ere fix
18、ed: late st d at e by which th e amendment h as to b e implemente d at n at ionallevel b y publicat ion ofan i dent ical nat ional s ta ndard or b yendorsement (dop) 2008-03-01 late st d at e by which th e nati onal s ta ndards c onfl icti ng with th e amendment h ave to b e with drawn (dow) 2010-03
19、-01 This a mendment intr oduces a n ew PV C insulati on Grade fo r high te mperat ure._ _ BS EN 50290-2-21:2002+A1:2007EN 50290-2-21:2001+A1:2007 - 2 - 3 -EN 50290-2-21:20011 ScopeThis part 2-21 of EN 50290 gives specific requirements for PVC insulation compounds used for communication cables.It is
20、to beread in conjunctionwith part 2-20 of EN 50290.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listedhereafter. For dat
21、ed references, subsequent amendments to or revisions of any of these publications apply tothis European Standard only when incorporated init by amendment or revision. For undated references the latest edition ofthe publication referred to applies (including amendments).EN 60811-1-1:1995, Insulatinga
22、nd sheathingmaterials of electric and optical cables Common test methods Part 1-1: General application Measurement of thickness and overall dimensions Tests for determining the mechanical properties(IEC 60811-1-1:1993).EN 60811-1-2:1995, Insulating and sheathing materials of electric cables Commonte
23、st methods Part1-2: General application Thermal ageing methods(IEC60811-1-2:1985+ corr. May 1986 + A1:1989).EN 60811-1-3:1995, Insulatingand sheathingmaterials of electric and optical cables Common test methods Part 1-3: General application Methods for determining the density Waterabsorptiontests Sh
24、rinkage test(IEC 60811-1-3:1993).EN 60811-1-4:1995, Insulatingand sheathingmaterials of electric and optical cables Common test methods Part 1-4: General application Tests at low temperature(IEC60811-1-4:1985+ corr. May 1986 + A1:1993).EN 60811-3-1:1995, Insulatingand sheathingmaterials of electric
25、and optical cables Common test methods Part 3-1: Methods specific to PVC compounds Pressure test at high temperature Tests for resistance to cracking(IEC60811-3-1:1985+ corr. May 1986).EN 60811-3-2:1995, Insulating and sheathing materials of electric cables Commontest methods Part3: Methods specific
26、 to PVC compounds Section2: Loss of mass test Thermal stability test(IEC60811-3-2:1985+ corr. May 1986 + A1:1993).ISO 868:1985, Plastics and ebonite Determination of indentation hardness by means of a durometer (Shore hardness).For cables with a maximum rat ed t emperatu re of 90 C, compound of Grad
27、e TI5 5 shallbe used and itshall comply with th e requirements d escribed i n Table 1.!“BS EN 50290-2-21:2002+A1:2007EN 50290-2-21:2001+A1:2007- 3 -EN 50290-2-21:2001 - 4 -3 RequirementIn case of specific applications, additional performances could beneeded. Relevant test methods and requirements sh
28、all be included in the detail specification ofthe cable.If lead fr ee PVC is required, th e lead cont ent shall be less th an 400 ppm, measured according toEN 5 0414.Table 1 - PVC in sulation compound Characteristics Test method Unit Grades TI51 TI52 TI53 TI54 TI55 1 Maximum rated tem peratur e at c
29、able fo r which the compound can be u sed C 70 70 90 70 90/105 a2 Densit y EN 6 0811-1-3 Clause 8 g/cm To be recorded 3 Hardness IS O868 Shore AShore DTo b e recorded 4 Mechanical character isti cs4.1 4.11 4.12 In st ate of d eliveryTensile st rength median, min. Elongation at break median, min. EN
30、6 0811-1-1 9.1 MPa % 12,5 125 10 150 15 150 17 125 15 150 4. 2 Af ter a geing Ageing conditions te mperatur e duration EN 6 0811-1-2 8. 1 Ch 80 2 7 x24 80 2 7 x24 135 2 14 x24 80 2 7 x24 140 2 14 x24 4. 21 Tensile st rength median, min. variation, max.MPa % 12,5 2 0 10 2 0 15 2 5 17 2 5 15 2 5 4.22
31、Elongation at break median, min. variation, max.% % 125 2 0 150 2 0 150 2 5 125 2 5 150 2 5 5 Loss of m ass Ageing conditions te mperatur e duration Loss of m ass, m ax.EN 6 0811-3-2 8.1 Ch mg/ cm80 2 7 x24 2, 0 80 2 7 x24 2, 0 115 2 14 x24 1, 5 100 2 7 x24 2, 0 115 2 14 x24 1, 5 6 Heat shock Test c
32、 onditions tem peratur e duration Result to be obtained EN 6 0811-3-1 9.1 Ch 150 2 1 No c racks150 2 1 No c racks150 2 1 No c racks150 2 1 No c racks150 2 6 No c racks“!BS EN 50290-2-21:2002+A1:2007EN 50290-2-21:2001+A1:2007 - 4 - 5 -EN 50290-2-21:2001Table 1 - PVC in sulation compound (conti nued)C
33、haracteristics Test method Unit Grades TI51 TI52 TI53 TI54 TI55 7 Pressure tes t a t high temper atur e Test c onditions temper atur e duration EN 6 0811-3-1 8.1 Ch 80 2 4 70 2 4 90 2 4 80 2 4 90 2 4 Result to be obtained - depth of indentation m edian, max. % 50 50 50 50 50 8 Behaviour a t low t em
34、peratur e 8.1 Bending tes t a t low t emperatur e Test c onditions temper atur e Result to be obtained EN 6 0811-1-4 8.1 C 1 5 2 No c racks 1 5 2 No c racks 1 5 2 No c racks 1 5 2 No c racks 1 5 2 No c racks8.2 Elongation tes t a t low t emperatur e Test c onditions temper atur e Elongation min. EN
35、6 0811-1-4 8.3 C% 1 5 2 20 1 5 2 20 9 Volume resist ivit y, m in. - at max. r ate d te mp. at c able - at 20 CAnnex A.m.m1081011108101110710101091012107101010 Thermal st abilitybat 200 C, min. EN 6 0811-3-2 Clause 9 min 240 80 120 11 Shrinkage c, m ax. Test c onditions temper atur e duration EN 6 08
36、11-1-3 Clause 10 % Cmin 4 150 2 15 4 150 2 15 12 Dielectr ic constant dUnderconsideration aThe maximum rated temper atur e of 9 0 C m ay e xceed up to 105 C, but with reduced lifetime. bTest t o be perfo rmed af ter a geing (14 x 24 h at 140 C).cWhen required in cable detail specification. dWhen req
37、uired th e dielect ric constant shall be measured at 1 k Hz.Typical values are under c onsideration. !“BS EN 50290-2-21:2002+A1:2007EN 50290-2-21:2001+A1:2007- 5 -bEN 50290-2-21:2001 - 6 -Annex A (normative)Volume resistivityThis test shall be made oninsulated conductor sample.The sample shall be im
38、mersed in water previously heated to the specified temperature,a length ofabout 0,25 m at each end of the sample being keptabove the water.The length of the samples, the temperature of the water and the duration of immersion are given in the relevant cable specification.A d.c. voltage between 80V an
39、d 500 V shall thenbe appliedbetween theconductorand the water.Theinsulation resistance shall be measured1min after application of the voltage.The volume resistivity shall be calculated from the measured insulation resistance by the following formula:where = volume resistivity, in7m;R = measured insu
40、lation resistance, in 7;l = length of the sample, in m;D= outer diameter of theinsulation, in mm;d= inner diameter of the insulation, in mm.2lRlogeDd-=BS EN 50290-2-21:2002+A1:2007EN 50290-2-21:2001+A1:2007 - 6 -blankBSI is the national body responsible for preparing British Standards and other stan
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