IEC 62561-1:2023

Overview

IEC 62561-1:2023 - Lightning protection system components (LPSC) Part 1 specifies requirements and test methods for metallic connection components used in a lightning protection system (LPS). Typical components covered include connectors, clamps, bonding and bridging components, expansion pieces and test joints. This third edition (2023) replaces the 2017 edition and introduces technical updates such as added connection-type definitions, expanded location classification, alignment with ISO 22479:2019 (humid sulphurous atmosphere treatment), and a new normative Annex E for reduced test procedures.

Keywords: IEC 62561-1:2023, lightning protection, LPSC, connection components, lightning protection system components.

Key topics and technical requirements

• Scope and classification
  • Classification by lightning-current withstand ability, installation location, mechanical behaviour, and permanence of connection.
• Design and documentation
  • Requirements for product documentation, installation instructions and durable marking.
• Electrical performance
  • Tests for lightning current carrying capability and electrical continuity under specified impulse conditions.
• Mechanical performance
  • Static mechanical stress/withstand capability and requirements for permanent vs non‑permanent connections.
• Durability and ageing
  • Conditioning/ageing tests including salt mist, humid sulphurous and ammonia atmosphere procedures (aligned with ISO 22479:2019 where applicable).
• Special procedures
  • Test-joint dismantling, prevention of conductor damage, and requirements for reliable connections and expansion pieces.
• Testing and reporting
  • Detailed test methods, EMC considerations and structure/content for test reports. Annexes provide test flowcharts and conditioning details; Annex E specifies reduced test procedures for certain cases.

Keywords: tests for connection components, marking, mechanical stress, conditioning, humid sulphurous atmosphere.

Practical applications - who uses this standard

• Manufacturers of clamps, connectors and bonding components - for product design, type testing and certification.
• Independent test laboratories - to conduct electrical, mechanical and environmental tests and produce compliant test reports.
• Specifiers, consultants and designers - to select appropriate LPSC for buildings and infrastructure in line with IEC 62305 LPS design.
• Installers and maintenance teams - for correct installation, marking and inspection references.
• Certification bodies and procurement - to set acceptance criteria and ensure compliance during procurement and conformity assessment.

Keywords: product testing, LPS installation, IEC 62305 compliance, procurement specification.

Related standards

• IEC 62561 series (other parts covering conductors, arresters, etc.)
• IEC 62305 (risk management and LPS design)
• ISO 22479:2019 (humid sulphurous atmosphere treatment) - referenced/aligned

Using IEC 62561-1:2023 ensures metallic connection components meet robust electrical, mechanical and environmental tests required for reliable lightning protection system performance.