BRITISH STANDARD BS EN 50290-2-30:2002

Communication cables

Part 2-30: Common design rules and construction Poly(tetrafluoroethylene-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

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BS EN 50290-2-30:2002

This British Standard, having been prepared under the direction of the Electrotechnical Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 22 March 2002

BSI 22 March 2002

ISBN 0 580 39321 6

National foreword

This British Standard is the official English language version of EN 50290-2-30:2002.

The UK participation in its preparation was entrusted by Technical Committee EPL/46, Cables, wires and waveguide, RF connectors and accessories for communication and signalling, to Subcommittee EPL/46/1, Communication cables, which has the responsibility to:

A list of organizations represented on this subcommittee can be obtained on request to its secretary.

Cross-referencesThe 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 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 obligations.

aid enquirers to understand the text;

present 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.

Summary of pagesThis 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.

Amendments issued since publication

Amd. No. Date Comments

EUROPEAN STANDARD EN 50290-2-30NORME EUROPENNE

EUROPISCHE NORM January 2002

CENELECEuropean Committee for Electrotechnical Standardization

Comit Europen de Normalisation ElectrotechniqueEuropisches Komitee fr Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

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

ICS 29.035.20; 33.120.10

English version

Communication cablesPart 2-30: Common design rules and construction -Poly(tetrafluoroethylene-hexafluoropropylene) (FEP)

insulation and sheathing

Cbles de communicationPartie 2-30: Rgles de conceptioncommunes et construction -Poly(ttrafluorothylne-hexafluoropropylne) (FEP) pourenveloppes isolantes et gainage

KommunikationskabelTeil 2-30: Gemeinsame Regeln frEntwicklung und Konstruktion -Poly(tetrafluoroethylen-Hexafluoropropylen) (FEP) Isolierung- undMantelmischungen

This European Standard was approved by CENELEC on 2001-11-01. CENELEC members are bound tocomply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained onapplication to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any otherlanguage made by translation under the responsibility of a CENELEC member into its own language andnotified 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, Luxembourg, Malta, Netherlands,Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.

EN 50290-2-30:2002 2

Foreword

This European Standard was prepared by a joint working group of the Technical Committees CENELECTC 46X, Communication 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 asEN 50290-2-30 on 2001-11-01.

The following dates were fixed:

latest date by which the EN has to be implementedat national level by publication of an identicalnational standard or by endorsement (dop) 2002-08-01

latest date by which the national standards conflictingwith 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 normative.

This European Standard has been prepared under the European Mandate M/212 given to CENELEC by theEuropean Commission and the European Free Trade Association.

__________

3 EN 50290-2-30:2002

1 ScopeThis Part 2-30 of EN 50290 gives specific requirements for poly(tetrafluoroethylene-hexafluoropropylene)(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 appropriate places in the text and the publications are listedhereafter. For dated references, subsequent amendments to or revisions of any of these publications apply tothis European Standard only when incorporated in it by amendment or revision. For undated references thelatest edition of the publication referred to applies (including amendments).

EN 60811-1-1:1995 Insulating and sheathing materials of electric cables - Common test methodsPart 1: General application -- Section 1: Measurement of thickness and overalldimensions - Tests for determining the mechanical properties (IEC 60811-1-1:1993)

EN 60811-1-2:1995 Insulating and sheathing materials of electric cables - Common test methodsPart 1: General application -- Section 2: Thermal ageing methods(IEC 60811-1-2:1985 + corr. May 1986 + A1:1989)

EN 60811-1-3:1995 Insulating and sheathing materials of electric cables - Common test methodsPart 1-3: General application - Methods for determining the density - Waterabsorption tests - Shrinkage test (IEC 60811-1-3:1993)

EN 60811-1-4:1995 Insulating and sheathing materials of electric cables - Common test methodsPart 1-4: General application - Tests at low temperature(IEC 60811-1-4:1985 + corr. May 1986 + A1:1993)

EN 60811-3-1:1995 Insulating and sheathing materials of electric cables - Common test methodsPart 3-1: Methods specific to PVC compounds - Pressure test at high temperature -Tests for resistance to cracking (IEC 60811-3-1:1985 + corr. May 1986)

IEC 60093:1980 Methods of test for volume resistivity and surface resistivity of solid electricalinsulating materials

IEC 60250:1969 Recommended methods for the determination of the permittivity and dielectricdissipation factor of electrical insulating materials at power, audio and radiofrequencies including metre wavelengths

ISO 11357-3:1999 Plastics -- Differential scanning calorimetry (DSC) -- Part 3: Determination oftemperature and enthalpy of melting and crystallization

3 Requirements

In case of specific applications, additional performances could be needed. Relevant test methods andrequirements 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 Requirements

1 Maximum rated temperature at cable forwhich the compound can be used

ISO 11357-3 C 200

2 Density EN 60811-1-3 g/cm3 2,15 0,03

3 Melting point C 265 20

4 Mechanical characteristics

4.1

4.11

4.12

In state of delivery

Tensile strength- median, min.

Elongation at break- median, min.

EN 60811-1-1

EN 60811-1-1

MPa

%

10

200

4.2

4.21

4.22

After ageing

Ageing conditions- temperature- duration

Tensile strength- median, min.- variation, max.

Elongation at break- median, min.

EN 60811-1-2

EN 60811-1-1

EN 60811-1-1

Ch

Mpa%

%

240 514*24

1025

200

5 Heat shock

Test conditions- temperature- duration

Result to be obtained

EN 60811-3-1

Ch

250 56

No crack

6 Behaviour at low temperature

Bending at low temperatureTest conditions- temperature

Result to be obtained

EN 60811-1-4

C - 15 2

No crack

7 Volume resistivity, min.

- at max. rated temperature at cable- at 20 C

IEC 60093

.m.m

10161017

8 Dielectric constant, max.

- at 50 kHz, 23 C- at 100 kHz, 23 C

IEC 60250

2,12,1

9 Dissipation factor, max.

- at 50 kHz, 23 C- at 100 kHz, 23 C

IEC 60250

4 x 10-46 x 10-4

5 EN 50290-2-30:2002

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 about0,25 m at each end of the sample being kept above the water.

A DC voltage of between 80 V and 500 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 followingformula :

dD

elog

R2

where

= volume resistivity, in metersR = measured insulation resistance, in = length of the sample, in metersD = outer diameter of the insulation, in mmd = inner diameter of the insulation, in mm

BS EN 50290-2-30:2002

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