IEC 81346-1:2009

Overview

IEC 81346-1:2009 is an international standard jointly published by the International Electrotechnical Commission (IEC) and the International Organization for Standardization (ISO). This standard outlines basic rules and structuring principles for industrial systems, installations, equipment, and industrial products. It provides a unified approach to the structuring of objects within complex systems and the formulation of clear, unambiguous reference designations. These designations are essential for accurately identifying components or objects to facilitate consistent information creation, retrieval, and management throughout a system's lifecycle.

A horizontal standard by nature, IEC 81346-1:2009 supports various industries by standardizing the way systems and their elements are categorized and named based on different aspects, such as function, product, location, or other characteristics.

Key Topics

• Structuring Principles The standard defines general principles for decomposing industrial systems into manageable, well-defined parts. It describes three primary structuring aspects:

  • Function-oriented structures: Decomposition based on the purpose or role of components.
  • Product-oriented structures: Organizing elements by tangible products or components.
  • Location-oriented structures: Classification by physical or spatial placement.

• Reference Designations IEC 81346-1 details rules for creating unambiguous reference codes that uniquely identify objects within a system hierarchy. This includes:

  • Single-level and multi-level designation formats.
  • Use of letter codes that represent different aspects for clarity.
  • Managing multiple structures based on varying aspects in parallel.

• Labelling Guidelines The standard introduces clear rules and recommendations related to the labelling of components and objects, which assists in physical identification and supports digital documentation efforts.

• Object Concepts and Life Cycle It elaborates on terminology such as objects, aspects, types, occurrences, and individuals, clarifying how these interact throughout the life cycle of an industrial system or product.

• Handling Complex Systems Updates include detailed explanations and examples on manipulation of objects, managing multiple aspects simultaneously, and clarification on transitioning between aspect views.

Applications

IEC 81346-1:2009 is widely applicable in fields requiring structured management of complex industrial and technical systems, including:

• Manufacturing Plants and Industrial Automation Assists engineers and project managers in consistently structuring documentation and components for systems such as assembly lines, process units, and control installations.

• Electrical and Mechanical Engineering Facilitates the design and maintenance of electrical installations, machinery, and equipment with clear identification for components, simplifying troubleshooting and upgrades.

• Asset and Maintenance Management Helps organizations maintain an accurate registry of assets, their functions, and locations-improving lifecycle management and reducing downtime.

• Information Systems and CAD Integration Establishes a foundation for integrating structured data into Computer-Aided Design (CAD) and enterprise information systems, enhancing interoperability and data exchange accuracy.

• Project Documentation and Standardization Supports consistent documentation practices across projects, aiding manufacturers, contractors, and stakeholders in comprehending complex system architectures.

Related Standards

IEC 81346-1 forms part of a broader series related to reference designation principles and industrial system structuring, including:

• IEC 81346-2: Focuses on structuring rules for power systems, ground systems, and cable trees.
• IEC 81346-3: Addresses structuring aspects specific to manufacturing systems.
• IEC Guide 108: Defines the role of horizontal standards like IEC 81346-1 in providing foundational, cross-sector principles.

Together, these standards enable harmonized system descriptions and support comprehensive object identification and information management solutions for diverse industrial sectors.

By implementing IEC 81346-1:2009, companies and engineers ensure high levels of consistency, accuracy, and efficiency in the structuring, naming, and management of industrial systems. This not only enhances internal process workflows but also supports global interoperability, making it a cornerstone standard for industrial standardization efforts worldwide.