Overview
EN IEC 61169-1-3:2026 specifies the performance requirements and testing methods for surge protective devices (SPDs) integrated into radio-frequency (RF) coaxial connectors. Issued by CLC, this standard addresses the need for robust surge protection within telecommunications and signalling networks, safeguarding sensitive electronic and communication equipment from the direct and indirect effects of lightning and other transient overvoltages.
SPDs built into coaxial connectors are essential for diverting surge currents and limiting voltages to acceptable levels, thereby preventing equipment damage and loss of service. The standard covers a wide range of SPD technologies, including gas discharge tube types, ¼ wavelength short stub types, flash-off gap types, and their hybrids, supporting system voltages up to 1,000 V AC (RMS) and 1,500 V DC.
Key Topics
- Scope and Purpose: Defines requirements for SPDs integrated in coaxial connectors used in RF, telecommunications, and signalling networks, focusing on their ability to withstand surge events and protect downstream equipment.
- Device Types: Details SPD types suitable for coaxial connectors such as:
- Gas discharge tubes (GDT)
- ¼ wavelength short stub designs
- Flash-off gap
- Hybrid arrangements
- Service and Environmental Conditions: Provides environmental operation guidelines, including:
- Air pressure: 80 kPa to 106 kPa (altitude +2,000 m to -500 m)
- Temperature: -5°C to +40°C (indoor), -40°C to +70°C (outdoor)
- Humidity: 5% to 95% (indoor), 5% to 100% (outdoor)
- Electrical Performance: Outlines minimum performance requirements for:
- Sparkover voltage
- Return loss (V.S.W.R.)
- Insertion loss
- Insulation resistance
- Test Methods: Describes testing and measurement procedures for:
- DC sparkover voltage
- Impulse sparkover voltage
- Impulse durability
- Return loss and insertion loss
- Insulation resistance
- Measurement Equipment: Specifies recommended equipment and set-ups for test execution, ensuring reliable and repeatable results.
Applications
EN IEC 61169-1-3:2026 is critical for manufacturers, designers, and users of:
- Telecommunications and Signalling Equipment: Ensures resilience and protection of communication infrastructure exposed to surge events, reducing downtime and maintenance costs.
- RF and Microwave Systems: Provides guidance for integrating effective surge protection within RF connectors commonly used in antennas, base stations, and broadcast equipment.
- Industrial and Infrastructure Sectors: Applicable where coaxial connectors provide connectivity in control systems, security installations, or networked infrastructure, protecting these assets from abrupt overvoltage events.
- OEM Integration: Facilitates compliance during product development, ensuring that built-in SPD elements satisfy both international safety and functional performance expectations.
By adhering to this standard, stakeholders improve operational reliability, enhance safety, and achieve regulatory compliance for products used in critical communications and high-value electronic assets.
Related Standards
Compliance with EN IEC 61169-1-3:2026 often requires reference to other international standards and guidelines, such as:
- IEC 61169-1: Generic specification for radio-frequency connectors - General requirements and measuring methods
- IEC 61643 series: Surge protective devices for low-voltage power distribution and for telecommunications and signalling networks
- IEC 61643-21: SPDs for telecommunications and signalling lines
- IEC 61000-4-5: EMC testing and measurement techniques - Surge immunity test
- ITU-T Recommendations K.30, K.55, K.65: Overvoltage and overcurrent requirements related to telecommunication SPD performance and applications
- IEC 60364-5-51: Selection and erection of electrical equipment - Common rules for electrical installations.
Use of these related standards ensures comprehensive surge protection solutions that are compatible with international best practices in safety and equipment reliability.
