oSIST prEN 50288-7:2021

SLOVENSKI STANDARD
01-februar-2021
Večelementni kovinski kabli za analogne in digitalne komunikacije in krmiljenje - 7.
del: Področna specifikacija za instrumentne in krmilne kable
Multi-element metallic cables used in analogue and digital communication and control -
Part 7: Sectional specification for instrumentation and control cables
Mehradrige metallische Daten- und Kontrollkabel für analoge und digitale Übertragung -
Teil 7: Rahmenspezifikation für Instrumenten- und Kontrollkabel
Câbles métalliques à éléments multiples utilisés pour les transmissions et les
commandes analogiques et numériques - Partie 7: Spécification intermédiaire pour les
câbles d’instrumentation et de contrôle
Ta slovenski standard je istoveten z: prEN 50288-7
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
December 2020
ICS 33.120.10 Will supersede EN 50288-7:2005 and all of its
amendments and corrigenda (if any)
English Version
Multi-element metallic cables used in analogue and digital
communication and control - Part 7: Sectional specification for
instrumentation and control cables
Câbles métalliques à éléments multiples utilisés pour les Mehradrige metallische Daten- und Kontrollkabel für
transmissions et les commandes analogiques et analoge und digitale Übertragung - Teil 7:
numériques - Partie 7: Spécification intermédiaire pour les Rahmenspezifikation für Instrumenten- und Kontrollkabel
câbles d'instrumentation et de contrôle
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2021-02-26.

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: 67768 Ref. No. prEN 50288-7 E

Contents Page
European 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 . 5
4.3 Cable elements . 6
4.4 Identification of cabling elements . 6
4.5 Screening of cabling elements . 6
4.6 Cable make-up . 6
4.7 Longitudinal watertight filling . 6
4.8 Interstitial fillers . 6
4.9 Screening of the cable core . 7
4.10 Moisture barriers . 7
4.11 Protective wrappings . 7
4.12 Inner sheath . 7
4.13 Bedding layers . 8
4.14 Metallic protection . 8
4.15 Integral suspension strand . 8
4.16 Outer sheathing . 8
4.17 Rodent or insect protection . 9
4.18 Chemical and /or environmental protection . 9
5 Test methods and requirements for completed cables. 9
5.1 General . 9
5.2 Electrical tests . 9
5.3 Mechanical tests . 10
5.4 Environmental tests . 11
5.5 Fire performance test methods . 11
Annex A (normative) Insulation or sheath thickness and concentricity — Selection of samples
and evaluation of results . 13
Annex B (normative) Copper braid screening . 14
Annex C (normative) Determination of cable dimensions . 15
Annex D (informative) Thermocouple extension and compensating conductor combinations . 19
Annex ZZ (informative) Relationship between this European standard and the safety objectives
of Directive 2014/35/EU [2014 OJ L96] aimed to be covered . 21
Bibliography . 25

European foreword
This document (prEN 50288-7:2020) has been prepared by SC46XC, “Multicore, multipair and quad data
communication cables”, of Technical Committee CENELEC 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 document will supersede EN 50288-7:2005 and all of its amendments and corrigenda (if any).
This document has been prepared under a mandate given to CENELEC by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this document.
This document is to be read in conjunction with EN 50288-1, which contains the essential provisions for its
application.
LVD additions highlighted
1 Scope
This document covers multi-element cables suitable for connecting instruments and control systems for
analogue or digital signal transmission used in industrial processes carried out in commercial and industrial
premises including cables that could be specified for use in Automated Infrastructure Management applications.
They could be screened and optionally incorporate armouring and/or moisture or environmental protection
layers.
The cables are expected to have a mechanically robust construction and electrical transmission handling
properties. The electrical, mechanical, transmission and environmental performance characteristics of the
cables, related to their reference test methods are detailed in this specification.
Cables covered by this document have maximum rated voltages of 300 V or 500 V a.c.
Multi-element cables for use in analogue, digital and control circuits are not designed to be used for power
supply or to be connected directly to mains electricity supply or other low impedance sources.
NOTE These cables are expected to be installed in accordance with the applicable local and national regulations.
According to Annex 1 of mandate M/443 EN, depending upon the installation and application these cables might
not necessarily fall under the regulation of EN 50575.
Cables intended to have circuit integrity in a fire are covered by this document.
There could be occasions when cables are required to have higher operating temperature ratings than those
provided by using materials specified by the EN 50290 series. Suitable alternative materials are under
consideration.
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 10218-1, Steel wire and wire products - General - Part 1: Test methods
EN 10244-2, Steel wire and wire products - Non-ferrous metallic coatings on steel wire - Part 2: Zinc or zinc
alloy coatings
EN 10257-1, Zinc or zinc alloy coated non-alloy steel wire for armouring either power cables or
telecommunication cables - Part 1: Land cables
EN 50200, Method of test for resistance to fire of unprotected small cables for use in emergency circuits
EN 50288-1:2013, Multi-element metallic cables used in analogue and digital communication and control - Part
1: Generic specification
EN 50289 (series), Communication cables — Specifications for test methods
EN 50290 (series), Communication cables
EN 50307, Lead and lead alloys - Lead and lead alloy sheaths and sleeves of electric cables
EN 50362, Method of test for resistance to fire of larger unprotected power and control cables for use in
emergency circuits
EN 60228, Conductors of insulated cables (IEC 60228)
EN 60332-1-2, Tests on electric and optical fibre cables under fire conditions - Part 1-2: Test for vertical flame
propagation for a single insulated wire or cable - Procedure for 1 kW pre-mixed flame (IEC 60332-1-2)
EN 60332-3, (series), Tests on electric and optical fibre cables under fire conditions (IEC 60332-3 series)
EN 60584-1, Thermocouples - Part 1: EMF specifications and tolerances (IEC 60584-1)
EN 60584-3, Thermocouples - Part 3: Extension and compensating cables - Tolerances and identification
system (IEC 60584-3)
EN 60708, Low-frequency cables with polyolefin insulation and moisture barrier polyolefin sheath (IEC 60708)
EN 60754-1, Test on gases evolved during combustion of materials from cables - Part 1: Determination of the
halogen acid gas content (IEC 60754-1)
EN 60754-2, Test on gases evolved during combustion of materials from cables - Part 2: Determination of acidity
(by pH measurement) and conductivity (IEC 60754-2)
EN 60811-201, Electric and optical fibre cables - Test methods for non-metallic materials - Part 201: General
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