SIST EN 50289-1-2:2023

Communication cables - Specifications for test methods - Part 1-2: Electrical test methods - DC resistance

This document details the test methods to determine the DC resistance characteristics of the conductors of cables used in analogue and digital communication systems. These characteristics are described by the conductor resistance, loop resistance and resistance unbalance.

Kommunikationskabel - Spezifikation für Prüfverfahren - Teil 1-2: Elektrische Prüfverfahren - Gleichstromwiderstand

Câbles de communication - Spécifications des méthodes d'essais - Partie 1-2: Méthodes d'essais électriques - Résistance continue

Le présent document précise les méthodes d'essais en vue de déterminer les caractéristiques de résistance continue des conducteurs des câbles utilisés dans les systèmes de communication analogiques et numériques. Ces caractéristiques sont données par la résistance du conducteur, la résistance de boucle et l'asymétrie de résistance.

Komunikacijski kabli - Specifikacije za preskusne metode - 1-2. del: Električne preskusne metode - Odpornost DC

Ta dokument podrobno navaja preskusne metode za ugotavljanje lastnosti enosmerne upornosti vodnikov kablov, ki se uporabljajo v analognih in digitalnih komunikacijskih sistemih. Te lastnosti so opisane z upornostjo prevodnika, upornostjo zanke in upornostjo nesimetrije.

General Information

• Status: Published
• Public Enquiry End Date: 27-Oct-2022
• Publication Date: 19-Apr-2023
• ICS: 33.120.20 - Wires and symmetrical cables
• Technical Committee: MOC - Mobile Communications
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 19-Apr-2023
• Due Date: 24-Jun-2023
• Completion Date: 20-Apr-2023
• Ref Project: EN 50289-1-2:2023 - Communication cables - Specifications for test methods - Part 1-2: Electrical test methods - DC resistance

Relations

• Replaces: SIST EN 50289-1-2:2002 - Communication cables - Specifications for test methods -- Part 1-2: Electrical test methods - DC resistance
• Effective Date: 01-Jun-2023

Overview

SIST EN 50289-1-2:2023 is a European standard published by CLC that specifies electrical test methods to determine the DC resistance characteristics of communication cables used in analogue and digital systems. This standard focuses on test procedures for measuring conductor resistance, loop resistance, and resistance unbalance in cables. It updates and supersedes the previous 2001 version by including the determination of resistance unbalance between pairs, enhancing accuracy and ensuring compliance with modern communication cable requirements.

This standard applies to wires and symmetrical cables used in telecommunications, providing methodology for consistent and precise electrical performance evaluation. SIST EN 50289-1-2:2023 is essential for manufacturers, testers, and quality control professionals involved in the design, production, and deployment of communication cables.

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Key Topics

• DC Resistance Measurement
  The standard defines methods for accurately measuring the electrical direct current (DC) resistance of cable conductors and screens, considering the effects caused by conductor twisting.

• Loop Resistance Testing
  Loop resistance is measured by testing both conductors forming a circuit from one end, or by summing individual conductor resistances. This measurement ensures the cable’s electrical continuity and low resistance path.

• Resistance Unbalance Assessment
  A newly introduced key feature of this 2023 update, resistance unbalance quantifies differences in resistance between conductors within a pair or sides of a quad, expressed as a percentage. Controlling resistance unbalance is critical for minimizing signal degradation in communication systems.

• Test Sample Preparation and Equipment Requirements
  Tests must use precise, calibrated equipment capable of ±0.5% accuracy, and cable lengths must be accurately known with preparation to minimize contact resistance effects.

• Temperature Correction
  Measurements are calibrated to a reference temperature of 20 °C using standard correction factors for copper and other conductor materials to ensure consistent and comparable results.

• Standardized Test Reporting
  The test report must detail conditions like ambient temperature and sample length, and provide corrected resistance values for conductor resistance, loop resistance, and resistance unbalance as per cable specification requirements.

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Applications

SIST EN 50289-1-2:2023 is vital in the telecommunications industry for:

• Quality Assurance and Compliance Testing
  Ensuring communication cables meet defined electrical resistance criteria to support reliable analogue and digital signal transmission.

• Cable Manufacturing and Development
  Assisting manufacturers in verifying the electrical properties of cable batches to optimize material use, improve cable design, and maintain international quality standards.

• Field Testing and Installation Verification
  Providing standardized methods for technicians to test installed cables, confirming performance and identifying potential issues caused by resistance variances.

• Network Infrastructure Maintenance
  Supporting maintenance teams in monitoring cable health over time by regularly measuring DC resistance characteristics and detecting degradation early.

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Related Standards

• EN 50289-1-1:2017
  Communication cables - Specifications for test methods - Part 1-1: Electrical test methods - General requirements. This companion standard provides essential provisions that support the specific test methods defined in SIST EN 50289-1-2:2023.

• EN 50290-1-2
  Communication cables - Part 1-2: Definitions. This document supplies terminology used within SIST EN 50289-1-2:2023 to ensure clarity and consistency in interpretation.

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Keywords: EN 50289-1-2, DC resistance test methods, communication cables testing, conductor resistance, loop resistance, resistance unbalance, electrical test standards, CLC standards, analogue and digital communication cables, cable quality assurance.

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2023
Komunikacijski kabli - Specifikacije za preskusne metode - 1-2. del: Električne
preskusne metode - Odpornost DC
Communication cables - Specifications for test methods - Part 1-2: Electrical test
methods - DC resistance
Kommunikationskabel - Spezifikation für Prüfverfahren - Teil 1-2: Elektrische
Prüfverfahren - Gleichstromwiderstand
Câbles de communication - Spécifications des méthodes d'essais - Partie 1-2: Méthodes
d'essais électriques - Résistance continue
Ta slovenski standard je istoveten z: EN 50289-1-2:2023
ICS:
33.120.20 Žice in simetrični kabli Wires and symmetrical
cables
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 50289-1-2

NORME EUROPÉENNE
EUROPÄISCHE NORM April 2023
ICS 33.120.20 Supersedes EN 50289-1-2:2001
English Version
Communication cables - Specifications for test methods -
Part 1-2: Electrical test methods - DC resistance
Câbles de communication - Spécifications des méthodes Kommunikationskabel - Spezifikation für Prüfverfahren -
d'essais - Partie 1-2: Méthodes d'essais électriques - Teil 1-2: Elektrische Prüfverfahren - Gleichstromwiderstand
Résistance continue
This European Standard was approved by CENELEC on 2022-12-08. 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 CEN-CENELEC
Management Centre 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 CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50289-1-2:2023 E
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Test method. 4
5 Expression of test results . 5
6 Test report . 6
Bibliography . 7
European foreword
This document (EN 50289-1-2:2023) has been prepared by CLC/TC 46X, Communication cables.
The following dates are fixed:
• latest date by which this document has to be (dop) 2023-10-14
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) 2026-04-14
conflicting with this document have to be
withdrawn
This document supersedes EN 50289-1-2:2001 and all of its amendments and corrigenda (if any).
— The determination of the resistance unbalance between pairs has been added.
This document is read in conjunction with EN 50289-1-1, which contains essential provisions for its
application.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN-CENELEC shall not be held responsible for identifying any or all such patent
...