EN 50407-1:2004

SLOVENSKI SIST EN 50407-1:2004

STANDARD
oct 2004
Večparni kabli, uporabljeni v telekomunikacijskih omrežjih z visokimi bitnimi
hitrostmi z digitalnim dostopom - 1. del: Zunanji kabli
Multi-pair cables used in high bit rate digital access telecommunication networks –
Part 1: Outdoor cables
ICS 33.120.10 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

EUROPEAN STANDARD EN 50407-1
NORME EUROPÉENNE
EUROPÄISCHE NORM June 2004
ICS 33.120.10
English version
Multi-pair cables used in high bit rate
digital access telecommunication networks
Part 1: Outdoor cables
Câbles multi-paires de l'utilisateur final Vielpaarige Kabel für digitale
utilisés dans les réseaux d'accès Telekommunikationsnetzwerke
numériques de télécommunication mit hoher Bitrate
à haut-débits Teil 1: Außenkabel
Partie 1: Câbles extérieurs
This European Standard was approved by CENELEC on 2004-02-01. 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 bibliographical 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 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, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

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

© 2004 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 50407-1:2004 E
Foreword
This European Standard was prepared by the Technical Committee CENELEC TC 46X,
Communication cables.
The text of the draft was submitted to the Unique Acceptance Procedure and was approved by
CENELEC as EN 50407-1 on 2004-02-01.

The following dates were fixed:

- latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2005-02-01

- latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2007-02-01

_______________
– 3 – EN 50407-1:2004
Contents
1 Scope .5
2 Normative references.5
3 Terminology and abbreviations.5
3.1 Terminology.5
3.2 Abbreviations.5
4 General information .6
4.1 General cable description.6
4.2 Environment and product safety requirement. .6
4.3 Testing.6
5 Requirements for conductor.6
5.1 Construction and dimensions .6
5.2 Mechanical requirements.6
5.3 Electrical requirements.7
5.3.1 Conductor resistance .7
5.3.2 Conductor resistance unbalance.7
6 Requirements for insulation .7
6.1 Construction material and dimensions.7
6.1.1 Construction.7
6.1.2 Colour code .7
6.2 Mechanical requirements.7
6.3 Electrical requirements.7
6.3.1 Insulation resistance .7
6.3.2 Dielectric strength.7
7 Requirements for cable element .8
7.1 Construction and dimensions .8
7.1.1 Screening of the cable element .8
7.1.2 Spare cable elements.8
8 Requirements for cable core .8
8.1 Design .8
8.1.1 General .8
8.1.2 Screen .8
8.1.3 Interstitial fillers .9
9 Requirements for filling compounds .9
10 Requirements for the screening of the cable core .9
11 Requirement for the armour .9
12 Requirements for the sheath .9
12.1 Colour of sheath.9
12.2 Mechanical requirements of the sheath .9
13 Cable identification .10

14 Requirements for finished cable .10
14.1 Mechanical requirements.10
14.1.1 Bending 10
14.1.2 Impact 10
14.1.3 Tensile (under consideration) .10
14.1.4 Crush resistance .10
14.2 Environmental requirements .11
14.2.1 Temperature range .11
14.2.2 Cold bend.11
14.2.3 Fauna and mould proofing .11
14.2.4 Moisture barriers .11
15 Electrical requirements.11
15.1 Dielectric strength.11
15.2 Mutual capacitance.11
15.3 Capacitance unbalance.12
15.4 Velocity of propagation.12
15.5 Attenuation .12
15.6 Longitudinal Conversion Loss (LCL) .12
15.7 Near End Crosstalk (NEXT).12
15.8 Equal Level Far-End Crosstalk loss (ELFEXT) .12
15.9 Power Sum (PS) of crosstalk losses .12
15.10 Characteristic impedance .13
15.11 Coupling attenuation .13
15.12 Transfer impedance .13
16 Product qualification requirements.13

– 5 – EN 50407-1:2004
1 Scope
This European Standard defines outdoor multi-pair cables for use in high bit rate digital
telecommunication networks with their relative definitions and requirements.
It covers water tight cables, with an overall screen, for applications up to 10 MHz, to be used in
outdoor networks (for example in the subscriber access loop).
The electrical, mechanical, transmission performance characteristics of the screened cables, related
to their reference test methods, are detailed.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
EN 50289 series Communication cables - Specifications for test methods
(Basic reference standards)
EN 50290 series Communication cables
(Basic reference standards)
EN 60811-1-1 Insulating and sheathing materials 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)
EN 60811-1-2 1995 Insulating and sheathing materials of electric cables - Common test
methods – Part 1-2: General application - Thermal ageing methods
(IEC 60811-1-2:1985 + corrigendum May 1986 + A1:1989)
HD 402 Standard colours for insulation for low-frequency cables and wires
(IEC 60304)
IEC 60028 1925 International standard of resistance for copper
3 Terminology and abbreviations
3.1 Terminology
For the purpose of this European Standard, the definitions of EN 50290-1-2 apply.
3.2 Abbreviations
ADSL Asymmetric Digital Subscriber Lines
ATM Asynchronous Transfer Mode
DSL Digital Subcriber Line
EMC Electromagnetic Compatibility
EMI Electromagnetic Interference
FSAN Full Service Access Network
HDSL High-bit-rate Digital Subscriber Lines
ISDN Integrated Digital Services Network
ISDN-BRA ISDN-Basic Rate Access
ISDN-PRA ISDN-Primary Rate Access

Mbps Mega-bits per second
TBD To be determined
VDSL Very-high-bit-rate Digital Subscriber Lines
XDSL Generic term referring to all DSLs, ISDN, HDSL, ADSL, VDSL, etc.
4 General information
4.1 General cable description
These cables are designed for outdoor telecommunication networks, therefore they are water-tight
cables.
Since these cables are specifically designed for new, various existing and emerging,
telecommunication applications that involve high frequency spectrum up to 10 MHz, they include an
overall screen to improve the electromagnetic behaviour.
These cables contain from one pair up to 600 pairs that can be either in pairs or quads.
4.2 Environment and product safety requirement
ffs
4.3 Testing
For all test procedures described in this subclause, the test conditions shall be the sta
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