IEC 61918:2018+AMD1:2022+AMD2:2024 CSV
Industrial communication networks - Installation of communication networks in industrial premises

Standard No.
IEC 61918:2018+AMD1:2022+AMD2:2024 CSV
Release Date
2024
Published By
International Electrotechnical Commission (IEC)  IX  /  IEC
Status
Replace By
IEC 61918:2024
Latest
IEC 61918:2024
 

Introduction

IEC 61918 Standard Framework and Technology Evolution

IEC 61918:2018+AMD1:2022+AMD2:2024 is the core international standard for the installation of industrial communication networks. The fourth edition, revised second, was released in March 2024. This standard specifically establishes basic requirements for the installation of communication network media within industrial sites and between automation islands. It covers balanced and optical cabling, and also includes infrastructure requirements for wireless media.


Scope of Application and Core Concepts

This standard applies to communication networks within industrial automation islands, specifically those specified in the IEC 61158 and IEC 61784 series of standards. It provides guidance for addressing key aspects of industrial automation, including safety, security, and environmental aspects such as mechanical, liquid, particle, climatic, chemical, and electromagnetic interference.

Network typeCoverageSpecial requirements
Balanced cable networkEthernet and non-Ethernet basisElectromagnetic compatibility requirements
Fiber optic cable networkSingle-mode and multi-mode fiberMechanical protection requirements
Wireless infrastructureAccess point and antenna installationGrounding and shielding requirements

Installation life cycle management system

The standard adopts a complete life cycle management approach, dividing industrial network installation into five key stages: installation planning, installation implementation, installation verification and acceptance testing, installation management, installation maintenance and troubleshooting.

Installation Planning Requirements

Chapter 4 specifies the various requirements for installation planning, including safety, security, environmental considerations, and EMC. Particular emphasis is placed on the application of the MICE (Mechanical, Intrusion, Climatic, Electromagnetic) environment classification method.

Planning DimensionsTechnical RequirementsImplementation Key Points
Safety PlanningComply with IEC 60364 Series StandardsElectromagnetic Shock Protection Measures
Security PlanningReference to IEC 62443 Series StandardsPhysical Access Control
EMC PlanningUse the MICE Classification MethodologyShielding and Grounding Systems

Electromagnetic Compatibility and Grounding System Design

Annex B of the standard details the MICE description methodology, providing a systematic approach for electromagnetic compatibility design in industrial environments. E Classification (Electromagnetic) classifies environments based on the electromagnetic interference characteristics generated by industrial equipment. Grounding and shielding requirements are key technical points for industrial network installation: Detailed regulations exist for the cross-sectional area and length requirements for equipotential bonding conductors, the grounding methods for shielded cables, and the specifications for bonding straps. Appendix D of the standard provides detailed connector tables, including technical specifications for various industrial connectors, such as the M12 series, 8-position modular connectors, and BNC connectors. The standard specifies connector requirements for different communication profiles (CPs). Chapter 6 specifies the specific requirements for installation verification and acceptance testing, including visual inspection, mechanical verification, and electrical testing. The standard specifies different acceptance test methods for Ethernet-based and non-Ethernet-based cabling.

The acceptance test report must include a complete record of test results, including key test items such as cable parameter testing, ground bond testing, and terminal resistance verification.


New Requirements for Single-Pair Ethernet Networks

Amendment 2 adds Annex Q, which specifically specifies additional requirements for the installation of balanced single-pair Ethernet networks in industrial locations. This includes installation specifications for single-pair Ethernet technologies such as 1000BASE-T1, 100BASE-T1, 10BASE-T1S, and 10BASE-T1L.

Single-pair Ethernet offers new solutions in industrial environments, offering significant advantages in space-constrained environments and where long-distance transmission is required.


Implementation Recommendations and Best Practices

Planning Phase Recommendations

During the project planning phase, it is recommended to conduct an environmental assessment using the MICE methodology to identify the mechanical, intrusion, climatic, and electromagnetic environment levels for each area. Select appropriate cable types, connectors, and protective measures based on the assessment results.

Installation Implementation Recommendations

Cable routing should avoid parallel routing with power cables. Minimum spacing requirements should refer to the standards. Shielded cables should be grounded to ensure 360-degree connection to avoid an antenna effect.

Verification Testing Recommendations

It is recommended to use professional testing equipment to conduct comprehensive acceptance testing, including transmission performance testing, grounding continuity testing, and shielding effectiveness testing. Test results should be carefully documented and archived as basic data for subsequent maintenance.


Standard Development Trends and Technology Outlook

With the development of Industry 4.0 and the Internet of Things (IoT) technologies, industrial communication network installation standards will continue to evolve. Future versions may strengthen requirements for wireless network installation, add support for higher-speed networks, and improve network security regulations.

The application of single-pair Ethernet technology in industrial automation will be a key focus of future development, and relevant installation specifications need to be continuously updated and improved to adapt to new technological developments.

IEC 61918:2018+AMD1:2022+AMD2:2024 CSV Referenced Document

  • EN 50174-2 Information technology - Cabling installation - Part 2: Installation planning and practices inside buildings
  • EN 50310 Telecommunications bonding networks for buildings and other structures
  • IEC 60364-1:2005 Low-voltage electrical installations - Part 1: Fundamental principles, assessment of general characteristics, definitions
  • IEC 60757 Code for designation of colours
  • IEC 60807-2 Rectangular connectors for frequencies below 3 MHz - Part 2: Detail specification for a range of connectors, with assessed quality, with trapezoidal shaped metal shells and round contacts - Fixed solder contact types; Amendment 1
  • IEC 60807-3 Rectangular connectors for frequencies below 3 MHz; part 3: detail specification for a range of connectors with trapezoidal shaped metal sheels and round contacts; removable crimp contact types with closed crimp barrels, rear insertion/rear extraction
  • IEC 60825-2 Corrigendum 1 - Safety of laser products - Part 2: Safety of optical fibre communication systems (OFCSs)
  • IEC 60950-1 Information technology equipment - Safety - Part 1: General requirements*2026-02-13 Update
  • IEC 61000-4-4 Electromagnetic compatibility (EMC) — Part 4-4: Testing and measurement techniques — Electrical fast transient/burst immunity test
  • IEC 61000-4-5 Electromagnetic compatibility (EMC) - Part 4-5: Testing and measurement techniques - Surge immunity test*2026-02-13 Update
  • IEC 61156-1 Multicore and symmetrical pair/quad cables for digital communications - Part 1: Generic specification
  • IEC 61156-13:2023 Multicore and symmetrical pair/quad cables for digital communications - Part 13: Symmetrical single pair cables with transmission characteristics up to 20 MHz - Horizontal floor wiring - Sectional specification
  • IEC 61169-8 Radio-frequency connectors - Part 8: Sectional specification - RF coaxial connectors with inner diameter of outer conductor 6,5 mm (0,256 in) with bayonet lock - Characteristics impedance 50 (type BNC)
  • IEC 61753-1 Fibre optic interconnecting devices and passive components - Performance standard - Part 1-3: General and guidance for single-mode fibre optic connector and cable assembly for industrial environment,
  • IEC 61753-1-3 Fibre optic interconnecting devices and passive components - Performance standard - Part 1-3: General and guidance for single-mode fibre optic connector and cable assembly for industrial environment, Category I
  • IEC 61754-2 *2026-01-30 Update
  • IEC 61754-4 Fibre optic interconnecting devices and passive components - Fibre optic connector interfaces - Part 4: Type SC connector family
  • IEC 61784-1 Industrial communication networks - Profiles - Part 1: Fieldbus profiles
  • IEC 61784-2 Industrial communication networks - Profiles - Part 2: Additional fieldbus profiles for real-time networks based on ISO/IEC 8802-3
  • IEC 61935-1-1:2019 Specification for the testing of balanced and coaxial information technology cabling - Part 2: Cords as specified in ISO/IEC 11801-1 and related standards
  • IEC 61935-2 Specification for the testing of balanced and coaxial information technology cabling - Part 2: Cords as specified in ISO/IEC 11801-1 and related standards
  • IEC 62708 Document kinds for electrical and instrumentation projects in the process industry
  • IEC 63171-2:2021 Connectors for electrical and electronic equipment - Part 2: Detail specification for 2-way, shielded or unshielded, free and fixed connectors: mechanical mating information, pin assignment and additional requirements for type 2
  • IEC 63171-5:2022 Connectors for electrical and electronic equipment - Part 5: Detail specification for 2-way M8 and M12 circular connectors, shielded or unshielded, free and fixed - Mechanical mating information, pin
  • IEC 63171-6 Connectors for electrical and electronic equipment - Part 6: Detail specification for 2-way and 4-way (data/power), shielded, free and fixed connectors for power and data transmission with frequencies
  • ISO/IEC 11801-1:2017 Information technology. Integrated wiring of user premises. Part 1: General requirements*2026-02-13 Update
  • ISO/IEC 11801-3:2017 Information technology. Integrated wiring for user premises. Part 3: Industrial premises*2026-02-13 Update
  • ISO/IEC 11801-3:2017/AMD1:2021 Amendment 1 — Information technology — Generic cabling for customer premises — Part 3: Industrial premises
  • ISO/IEC 14763-3:2014 Information technology - Implementation and operation of customer premises cabling - Part 3: Testing of optical fibre cabling
  • ISO/IEC 14763-3:2014/AMD1:2018 Amendment 1 — Information technology — Implementation and operation of customer premises cabling — Part 3: Testing of optical fibre cabling
  • ISO/IEC TR 11801-9902:2017 Information technology - Generic cabling for customer premises- Part 9902:Specifications for End-to-end link configurations
  • ISO/IEC TS 29125:2017 Information technology - Telecommunications cabling requirements for remote powering of terminal equipment
  • ISO/IEC TS 29125:2017/AMD1:2020 Amendment 1 - Information technology - Telecommunications cabling requirements for remote powering of terminal equipment
  • ISO/IEC/IEEE 8802-3:2021 Telecommunications and exchange between information technology systems — Requirements for local and metropolitan area networks — Part 3: Standard for Ethernet (Third Edition)

IEC 61918:2018+AMD1:2022+AMD2:2024 CSV history

  • 2024 IEC 61918:2024 Industrial communication networks – Installation of communication networks in industrial premises IEC
  • 2024 IEC 61918:2018/AMD2:2024 Amendment 2 - Industrial communication networks - Installation of communication networks in industrial premises
  • 2022 IEC 61918:2022 Amendment 1 - Industrial communication networks - Installation of communication networks in industrial premises
  • 2022 IEC 61918:2018/AMD1:2022 Amendment 1 - Industrial communication networks - Installation of communication networks in industrial premises
  • 2018 IEC 61918:2018 Industrial communication networks - Installation of communication networks in industrial premises
  • 2013 IEC 61918:2013 Industrial communication networks - Installation of communication networks in industrial premises
  • 2010 IEC 61918:2010 Industrial communication networks - Installation of communication networks in industrial premises
  • 2009 IEC 61918:2007/COR1:2009 Corrigendum 1 - Industrial communication networks - Installation of communication networks in industrial premises
  • 2007 IEC 61918:2007 Industrial communication networks - Installation of communication networks in industrial premises
Industrial communication networks - Installation of communication networks in industrial premises

Standard and Specification




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