1、BRITISH STANDARD C ornrnunication cables Part 2-30: Common design rules and construction - Poly(tetrafluoroethy1ene- hexafluoropropylene) (FEP) insulation and sheathing The European Standard EN 50290-2-30:2002 has the status of a British Standard ICs 29.060.20; 33.120 BS EN 50290-2-3012002 Wk presen
2、t to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. - A list of organizations represented on this subcommittee can be obtained
3、on request to its secretary. Cr oss-r e fer enc e s The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find”
4、facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal ob
5、ligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 5 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. O BSI 22 March 2002 ISBN O 580 39321 6 EUROPEAN STANDARD EN 50290
6、-2-30 NORME EUROPENNE EUROPISCHE NORM January 2002 ICs 29.035.20; 33.120.10 English version Com mu n ica t i on cab I es Part 2-30: Common design rules and construction - Poly(tetrafluoroethylene-hexafluoropropylene) (FEP) insulation and sheathing Cbles de communication Partie 2-30: Rgles de concept
7、ion communes et construction - Poly(ttrafluorothy1ene- hexafl uoro pro pylene) (F EP) pour enveloppes isolantes et gainage Ko m m u n i kat ions ka be I Teil 2-30: Gemeinsame Regeln fr Entwicklung und Konstruktion - Poly(tetrafluoroethy1en- Hexaf I uoro Propylen) (FE P) Isol ieru ng- u nd Mantelmisc
8、hungen This European Standard was approved by CENELEC on 2001-11-01. CENELEC members are bound to comply with the CENKENELEC 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 bibliograp
9、hical 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 responsibility of
10、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, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembour
11、g, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 B
12、russels O 2002 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members Ref. No. EN 50290-2-30:2002 E EN 50290-2-30:2002 -2- Foreword This European Standard was prepared by a joint working group of the Technical Committees CENELEC TC 46X, Communication
13、 cables, and CENELEC TC 86A, Optical fibres and optical fibre cables. The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 50290-2-30 on 2001-1 1-01, The following dates were fixed: - latest date by which the EN has to be implemented at national le
14、vel by publication of an identical national standard or by endorsement (dop) 2002-08-01 - latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2004-08-01 Annexes designated “normative“ are part of the body of the standard. In this standard, annex A is normat
15、ive. This European Standard has been prepared under the European Mandate M/212 given to CENELEC by the European Commission and the European Free Trade Association. -3- EN 50290-2-30:2002 1 Scope This Part 2-30 of EN 50290 gives specific requirements for poly(tetrafluoroethy1ene-hexafluoropropylene)
16、(FEP) insulation and sheathing used in communication cables. It is to be read in conjunction with Part 2-20 of EN 50290. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropria
17、te places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publicatio
18、n referred to applies (including amendments). EN 608 EN 608 EN 60811-1-1:1995 EN 60811-1-2:1995 EN 60811-1-3:1995 1-1 -4:1995 1-3-1:1995 IEC 60093:1980 IEC 60250: 1969 IS0 11 357-3:1999 3 Requirements Insulating and sheathing materials of electric cables - Common test methods Part 1 : General applic
19、ation - Section 1 : Measurement of thickness and overall dimensions - Tests for determining the mechanical properties (IEC 6081 1-1-1 :1993) Insulating and sheathing materials of electric cables - Common test methods Part 1 : General application - Section 2: Thermal ageing methods (IEC 60811-1-2:198
20、5 + corr. May 1986 + Al:1989) Insulating and sheathing materials of electric cables - Common test methods Part 1-3: General application - Methods for determining the density - Water absorption tests - Shrinkage test (IEC 6081 1-1-3:1993) Insulating and sheathing materials of electric cables - Common
21、 test methods Part 1-4: General application - Tests at low temperature (IEC 60811-1-4:1985 + corr. May 1986 + Al:1993) Insulating and sheathing materials of electric cables - Common test methods Part 3-1 : Methods specific to PVC compounds - Pressure test at high temperature - Tests for resistance t
22、o cracking (IEC 6081 1-3-1 :I985 + corr. May 1986) Methods of test for volume resistivity and surface resistivity of solid electrical insulating materials Recommended methods for the determination of the permittivity and dielectric dissipation factor of electrical insulating materials at power, audi
23、o and radio frequencies including metre wavelengths Plastics - Differential scanning calorimetry (DSC) - Part 3: Determination of temperature and enthalpy of melting and crystallization In case of specific applications, additional performances could be needed. Relevant test methods and requirements
24、shall be included in the detail specifications of the cables. EN 50290-2-30:2002 -4- Table 1 - FEP insulation and sheathing compounds Characteristics Test method Unit I Requirements 1 Maximum rated temperature at cable for which the compound can be used IS0 11 357-3 200 OC I 2 Density EN 60811-1-3 g
25、/cm3 I 2,15I0,03 “C I 265I20 3 4 4.1 4.1 1 4.12 4.2 4.21 4.22 5 Melting point Mechanical characteristics In state of delivery Tensile strength - median, min. EN 60811-1-1 EN 60811-1-1 Elongation at break - median, min. After ageing Age ng conditions - temperatu re - duration EN 60811-1-2 Tensile str
26、ength - median, min. - variation. max. EN 60811-1-1 Elongation at break - median, min. EN 60811-1-1 Heat shock EN 6081 1-3-1 Test conditions - temperatu re - duration Result to be obtained 6 Behaviour at low temperature Bending at low temperature Test conditions - temperatu re Result to be obtained
27、EN 60811-1-4 7 Volume resistivity, min IEC 60093 1 Ol6 1 017 - at max. rated temperature at cable - at 20 “C O. m O. m 8 Dielectric constant. max. IEC 60250 - at 50 kHz, 23 “C - at 100 kHz, 23 “C Dissipation factor, max. IEC 60250 9 - at 50 kHz, 23 “C - at 100 kHz, 23 “C 4 IO- 6 x -5- EN 50290-2-30:
28、2002 Annex A (normative) Volume resistivity This test shall be made on insulated conductor sample. The sample shall be immersed in water previously heated to the specified temperature, a length of about 0,25 m at each end of the sample being kept above the water. A DC voltage of between 80 V and 500
29、 V shall be then applied between the conductor and the water. The insulation resistance shall be measured 1 min after application of the voltage. The volume resistivity shall be calculated from the measured insulation resistance by the following formula : where p = R = e = D = d = volume resistivity
30、, in R meters measured insulation resistance, in R length of the sample, in meters outer diameter of the insulation, in mm inner diameter of the insulation, in mm BS EN 50290-2-3 O 12002 BSI 389 Chiswick High Road Lon don w4 4AL BSI is the independent national body responsible for preparing British
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