IEC 61156-2-1:2010

Multicore and symmetrical pair/quad cables for digital communications - Part 2-1: Horizontal floor wiring - Blank detail specification

IEC 61156-2-1:2010(E) is a blank detail specification. It relates to multicore and symmetrical pair/quad cables for digital communications in horizontal floor wiring. This third edition cancels and replaces the second edition published in 2003. It constitutes a technical revision and takes into account the technical changes made in the IEC 61156-2, Edition 3 (2010).

General Information

• Status: Published
• Publication Date: 27-Jun-2010
• ICS: 33.060.30 - Radio relay and fixed satellite communications systems
• ICS: 33.120.20 - Wires and symmetrical cables
• Technical Committee: SC 46C - Wires and symmetric cables
• Drafting Committee: WG 7 - TC 46/SC 46C/WG 7
• Current Stage: PPUB - Publication issued
• Start Date: 28-Jun-2010
• Completion Date: 31-Jul-2010

Relations

• Revises: IEC 61156-2-1:2003 - Multicore and symmetrical pair/quad cables for digital communications - Part 2-1: Horizontal floor wiring - Blank detail specification
• Effective Date: 05-Sep-2023

Overview

IEC 61156-2-1:2010 is the third edition (2010) blank detail specification for multicore and symmetrical pair/quad cables intended for horizontal floor wiring in premises cabling. It supersedes the 2003 edition and aligns with the technical changes in IEC 61156-2 (2010). Rather than specifying a single cable design, this document provides a template and layout for preparing detailed, nationally or commercially specific cable specifications that meet the sectional requirements for horizontal cabling.

Key topics and requirements

The blank detail specification defines the required structure and the types of technical information that a detail specification must include. Major technical topics covered:

• Cable description and identification
  • Type and number of elements (pairs/quads), nominal impedance, screening, application, category (e.g., Cat 3, Cat 5), trade names.
• Materials and construction
  • Conductor, insulation, element screening, core make-up, sheath material and marking, packaging.
• Electrical characteristics
  • Conductor resistance, resistance unbalance, dielectric strength, insulation resistance, mutual capacitance and capacitance unbalance.
  • Transfer impedance requirements given at multiple frequencies (examples in the standard: 1 MHz, 10 MHz, 30 MHz, 100 MHz).
• Transmission characteristics
  • Attenuation and near‑end crosstalk (NEXT) performance across defined frequencies (1 MHz up to 100 MHz), characteristic impedance, structural return loss (SRL), phase/delay metrics where applicable.
• Mechanical characteristics
  • Dimensional requirements, elongation at break (conductors, insulation, sheath), tensile strength, crush and impact, repeated bending and tensile performance.
• Environmental and safety tests
  • Temperature range performance, ageing, cold-bend, heat-shock, flame propagation (single and bunched cables), smoke, acid gas and toxic gas emissions, plus combined tests for air-handling spaces.
• Guidance for filling out the template
  • Use of NA (not applicable) or NS (not specified) where appropriate; reference to relevant subclauses in IEC 61156-2.

Applications

IEC 61156-2-1 is used to produce precise cable product specifications for:

• Horizontal floor wiring in office, commercial and industrial buildings (customer premises cabling).
• Specifying cables for LAN and structured cabling installers, procurement teams and facility managers.
• Establishing test and acceptance criteria for manufacturing, quality control and certification.

Who should use this standard

• Cable manufacturers preparing product detail specifications.
• National standards bodies and industry groups creating localized detail specs.
• System integrators, installers and consultants specifying horizontal cabling components.
• Test laboratories and conformity assessment bodies verifying compliance with IEC 61156 sectional requirements.

Related standards and keywords

• Related: IEC 61156-1:2002 (generic specification), IEC 61156-2:2010 (sectional specification), ISO/IEC 11801 (generic cabling).
• SEO keywords: IEC 61156-2-1, multicore cables, symmetrical pair/quad cables, horizontal floor wiring, blank detail specification, category 3, category 5, cable transmission characteristics, cable testing, structured cabling.

Standards Content (Sample)

IEC 61156-2-1 ®
Edition 3.0 2010-06
INTERNATIONAL
STANDARD
Multicore and symmetrical pair/quad cables for digital communications
Part 2-1: Horizontal floor wiring – Blank detail specification

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IEC 61156-2-1 ®
Edition 3.0 2010-06
INTERNATIONAL
STANDARD
Multicore and symmetrical pair/quad cables for digital communications
Part 2-1: Horizontal floor wiring – Blank detail specification

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
M
ICS 33.120.20 ISBN 978-2-88912-039-0
– 2 – 61156-2-1 © IEC:2010(E)
CONTENTS
FOREWORD.3

1 Scope.5
2 Normative references.5
3 Guidance for preparation of detail specifications .5
4 Blank detail specification for multicore and symmetrical pair/quad cables for digital
communication in horizontal floor wiring .7

Bibliography .12

61156-2-1 © IEC:2010(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MULTICORE AND SYMMETRICAL PAIR/QUAD CABLES
FOR DIGITAL COMMUNICATIONS
Part 2-1: Horizontal floor wiring –
Blank detail specification
FOREWORD
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International Standard IEC 61156-2-1 has been prepared by subcommittee 46C: Wires and
symmetric cables, of IEC technical committee 46: Cables, wires, waveguides, r.f. connectors,
r.f. and microwave passive components and accessories.
This third edition cancels and replaces the second edition published in 2003. This edition
constitutes a technical revision and takes into account the technical changes made in the
IEC 61156-2, Edition 3 (2010).
This sectional specification relates to IEC 61156-2:2010. The cables are specifically intended
for horizontal floor wiring as defined in ISO/IEC 11801:1995.

– 4 – 61156-2-1 © IEC:2010(E)
The text of this technical report is based on the following documents:
CDV Report on voting
46C/900/CDV 46C/913/RVC
Full information on the voting for the approval of this technical report can be found in the report
on voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 61156 series, under the general title: Multicore and symmetrical
pair/quad cables for digital communications, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until the
stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to
the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
•
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