prEN 50288-12-2

Multi-element metallic cables used in analogue and digital communication and control - Part 12-2: Sectional specification for screened cables characterised from 1 MHz up to 2000 MHz - Work Area cables

This document relates to EN 50288 1, Multi-element metallic cables used in analogue and digital communication and control. It covers screened cables, characterized up to 2GHz, used in work area wiring for information technology, generic-cabling systems. The electrical, mechanical, transmission and environmental performance characteristics of the cables, related to their reference test methods, are detailed. This sectional specification is expected to be read in conjunction with EN 50288 1, which contains the essential provisions for its application. The cables covered by this sectional specification are intended to operate with voltages and currents normally encountered in communication systems. These cables are not intended to be used in conjunction with low impedance sources, for example, the electric power supplies of public utility mains.

Mehradrige metallische Daten- und Kontrollkabel für analoge und digitale Übertragung – Teil 12-2: Rahmenspezifikation für geschirmte Kabel für Frequenzen von 1 MHz bis 2 000 MHz – Kabel für Geräteanschlusskabel und Schaltkabel

Câbles métalliques à éléments multiples utilisés pour les transmissions et les commandes analogiques et numériques - Partie 12-2: Spécification intermédiaire pour les câbles écrantés caractérisés de 1 MHz à 2 000 MHz - Câbles de zone de travail

Le présent document fait référence à l’EN 50288 1, Câbles métalliques à éléments multiples utilisés pour les transmissions et les commandes analogiques et numériques. Il couvre les câbles écrantés, caractérisés jusqu’à 2 GHz et utilisés pour le câblage des espaces de travail dans le cadre des systèmes de câblage générique destinés aux technologies de l’information. Les caractéristiques de performance électrique, mécanique, environnementale et de transmission des câbles sont détaillées, en se basant sur les méthodes d’essai de référence associées. La présente spécification intermédiaire est à utiliser conjointement avec l’EN 50288 1, qui donne les dispositions essentielles pour son application. Les câbles couverts par la présente spécification intermédiaire sont destinés à être exploités sous des tensions et courants rencontrés conventionnellement dans les systèmes de communication. Ces câbles ne sont pas destinés à être utilisés conjointement avec des sources de faible impédance, par exemple les alimentations électriques du réseau d’alimentation public.

Večelementni kovinski kabli za analogne in digitalne komunikacije in krmiljenje - 12-2. del: Področna specifikacija za zaslonjene kable z lastnostmi od 1 MHz do 2000 MHz - Kabli na delovnih območjih

General Information

• Status: Not Published
• Publication Date: 19-Jul-2022
• Withdrawal Date: 19-Jan-2023
• Technical Committee: CLC/TC 46X - Communication cables
• Drafting Committee: CLC/SC 46XC - Multicore, Multipair and Quad Data communication cables
• Current Stage: 4060 - Enquiry results established and sent to TC, SR, BTTF - Enquiry
• Start Date: 31-Jul-2020
• Due Date: 15-Jul-2020
• Completion Date: 31-Jul-2020
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Mandate: M/511 - Mandate to CEN, CENELEC and ETSI relating to harmonised standards in the field of the Low Voltage Directive
• Ref Project: oSIST prEN 50288-12-2:2020 - Multi-element metallic cables used in analogue and digital communication and control - Part 12-2: Sectional specification for screened cables characterised from 1 MHz up to 2000 MHz - Work Area cables

Overview

prEN 50288-12-2 (CLC) is a sectional specification for screened multi-element metallic cables characterised from 1 MHz up to 2000 MHz, intended for work area cables in information technology and generic-cabling systems. Prepared by CLC/SC 46XC, this draft complements EN 50288‑1 and defines the electrical, mechanical, transmission and environmental performance and the associated test methods required for cables used in work-area wiring. The standard explicitly excludes use with low‑impedance power sources (for example, public mains supply).

Key topics and technical requirements

The standard specifies construction, performance limits and tests for screened pairs and cable cores used in work‑area installations:

• Cable construction: pair elements, conductor types (solid or stranded copper, 0.50–0.80 mm nominal diameter), insulation and sheath materials per EN 50290 series; minimum braid coverage (≥ 60 % for braid-only; ≥ 30 % when combined with foil).
• Electrical limits:
  • Conductor loop resistance ≤ 14 Ω/100 m; resistance unbalance ≤ 2 % (pairs ≤ 4 %).
  • Insulation resistance ≥ 5000 MΩ·km; dielectric strength up to 1.0 kV d.c. or specified a.c./d.c. test voltages.
• High‑frequency/transmission:
  • Frequency range: 1 MHz to 2 GHz (2000 MHz).
  • Characteristic impedance: 100 ± 5 Ω at 100 MHz.
  • Detailed limits for attenuation, NEXT, PSNEXT, ACR‑F, PSACR‑F, return loss and skew across key frequencies (values and formulae provided for compliance evaluation).
  • Coupling attenuation types and transfer impedance/impedance transfer grades are defined for EMC performance.
• Mechanical & environmental tests: conductor elongation, insulation shrinkage, crush and impact resistance, abrasion, simulated installation (bends and “S” bend), with requirements that electrical transmission parameters remain within specified limits after testing.
• Reference test methods: numerous EN 50289‑3‑xx and EN 50290‑2 documents are cited for test procedures.

Applications and who uses it

prEN 50288-12-2 is targeted at:

• Cable designers and manufacturers specifying screened work‑area cables for high‑frequency IT and communication installations.
• System integrators, installers and specifiers selecting cables for generic cabling systems (horizontal/work-area links).
• Test laboratories and compliance engineers performing transmission and EMC testing to verify product conformance. Practical uses include high‑performance office/data‑centre horizontal cabling, shielded outlet-to-workstation links and other IT network endpoints requiring controlled crosstalk, attenuation and EMC behavior up to 2 GHz.

Related standards

• EN 50288‑1 (Generic specification) - to be read jointly with this part
• EN 50290 series (materials)
• EN 50289‑3‑2 / 3‑4 / 3‑5 / 3‑6 / 3‑8 / 3‑9 / 3‑16 (test methods)

Keywords: prEN 50288-12-2, screened cables, work area cables, 1 MHz to 2000 MHz, EN 50288-1, CLC, information technology cabling, NEXT, attenuation, return loss.

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2020
Večelementni kovinski kabli za analogne in digitalne komunikacije in krmiljenje -
12-2. del: Področna specifikacija za zaslonjene kable z lastnostmi od 1 MHz do
2000 MHz - Kabli na delovnih območjih
Multi-element metallic cables used in analogue and digital communication and control -
Part 12-2: Sectional specification for screened cables characterised from 1 MHz up to
2000 MHz - Work Area cables
Câbles métalliques à éléments multiples utilisés pour les transmissions et les
commandes analogiques et numériques - Partie 12-2: Spécification intermédiaire pour
les câbles écrantés caractérisés de 1 MHz à 2 000 MHz - Câbles de zone de travail
Ta slovenski standard je istoveten z: prEN 50288-12-2
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 DRAFT
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2020
ICS
English Version
Multi-element metallic cables used in analogue and digital
communication and control - Part 12-2: Sectional specification
for screened cables characterised from 1 MHz up to 2000 MHz -
Work Area cables
Câbles métalliques à éléments multiples utilisés pour les To be completed
transmissions et les commandes analogiques et
numériques - Partie 12-2: Spécification intermédiaire pour
les câbles écrantés caractérisés de 1 MHz à 2 000 MHz -
Câbles de zone de travail
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2020-07-31.

It has been drawn up by CLC/SC 46XC.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CENELEC 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,
Turkey and the United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.

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
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 65673 Ref. No. prEN 50288-12-2 E

Contents Page
Foreword . 2
1 Scope . 3
2 Normative references . 3
3 Definitions, symbols and abbreviations . 4
4 Cable construction . 4
4.1 Conductor . 4
4.2 Insulation . 4
4.3 Cabling elements . 4
4.4 Identification of cabling elements . 4
4.5 Screening of cabling elements . 4
4.6 Cable make-up . 4
4.7 Filling compound . 4
4.8 Interstitial fillers . 4
4.9 Screening of the cable core . 4
4.10 Moisture barriers . 5
4.11 Wrapping layers . 5
4.12 Sheath . 5
5 Test methods and requirements for completed cables. 5
5.1 General . 5
5.2 Electrical tests . 5
5.2.1 Low-frequency and d.c. electrical measurements . 5
5.2.2 High-frequency electrical and transmission measurements . 5
5.3 Mechanical tests . 7
5.4 Environmental tests . 8
5.5 Fire performance test methods . 8
Annex A (normative) Table for data cable current, voltage and power ratings . 9
European foreword
This document (prEN 50288-12-2:2020) has been prepared by SC 46XC, “Multicore, multipair and quad data
communication cables”, of TC 46X, “Communication cables”.
This document is currently submitted to the Enquiry.
The following dates are proposed:
• latest date by which the existence of this (doa) dor + 6 months
document has to be announced at national
level
• latest date by which this document has to be (dop) dor + 12 months
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) dor + 36 months
conflicting with this document have to be (to be confirmed or
withdrawn modified when voting)
This Part 12-2 is to be read in conjunction with EN 50288-1:2013.
1 Scope
This document relates to EN 50288-1, Multi-element metallic cables used in analogue and digital
communication and control.
It covers screened cables, characterized up to 2GHz, used in work area wiring for information technology,
generic-cabling systems.
The electrical, mechanical, transmission and environmental performance characteristics of the cables, related
to their reference test methods, are detailed.
This sectional specification is expected to be read in conjunction with EN 50288-1, which contains the
essential provisions for its application.
The cables covered by this sectional specification are intended to operate with voltages and currents normally
encountered in communication systems. These cables are not intended to be used in conjunction with low
impedance sources, for example, the electric power supplies of public utility mains.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements 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 50288-1:2013, Multi-element metallic cables used in analogue and digital communication and control -
Part 1: Generic specification
EN 50289-3-2, Communication cables - Specifications for test methods - Part 3-2: Mechanical test methods -
Tensile strength and elongation for conductor
EN 50289-3-4, Communication cables - Specifications for test methods - Part 3-4: Mechanical test methods -
Tensile strength, elongation and shrinkage of insulation and sheath
EN 50289-3-5, Communication cables - Specifications for test methods - Part 3-5: Mechanical test methods -
Crush resistance of the cable
EN 50289-3-6, Communication cables - Specifications for test methods - Part 3-6: Mechanical test methods -
Impact resistance of the cable
EN 50289-3-8, Communication cables - Specifications for test methods - Part 3-8: Mechanical test methods -
Abrasion resistance of cable sheath markings
EN 50289-3-9:2001, Communication cables - Specifications for test methods - Part 3-9: Mechanical te
...