IEC 61196-1-105:2024

Overview

IEC 61196-1-105:2024 is an international standard issued by the International Electrotechnical Commission (IEC) focusing on coaxial communication cables. Specifically, it addresses the electrical test methods for the withstand voltage of cable dielectric. This essential standard ensures the integrity and reliability of the dielectric material used in finished coaxial cables by specifying rigorous testing procedures to detect flaws such as breakdown or partial discharge.

The 2024 edition is a technical revision of the 2005 version, introducing updated test equipment requirements, refined voltage ramp rates, and the inclusion of leakage current monitoring in test results. Annex A provides special test procedures applicable to cables with unique structural features.

Key Topics

Scope and Purpose

• Applies to finished coaxial communication cables
• Designed to detect dielectric flaws that could compromise cable performance
• Covers dielectric withstand voltage testing under AC and DC conditions
• Special provisions for cables with complex structures (armored, balanced, multi-core)

Test Methods and Equipment

• Test voltage applied between inner and outer conductors for 1 minute
• AC frequency range: 40 Hz to 60 Hz with sinusoidal waveform
• Equipment options include AC/DC power supply, kilovoltmeter, and milliammeter or a Hipot tester capable of leakage current monitoring
• Voltage ramp-up rate limited to 1 kV/s for uniform application
• Sample preparation includes stripping and cleaning conductor ends to prevent premature breakdown

Test Reporting and Requirements

• Report must document temperature, test voltage and frequency, sample length, leakage current, test duration, and overall test configuration
• Acceptance criteria require no dielectric breakdown and leakage current within specified limits
• Detailed recording of any disruptive discharges or sparks during testing

Special Cable Structures (Annex A)

• Armored cables: Test between inner and outer conductors with armor earthed
• Cables with intermediate sheaths: Tests performed between various conductor and sheath combinations, with proper earthing
• Balanced cables: Includes multi-core, symmetrical, and twinax cables with specific core-to-core, core-to-screen, and screen-to-screen test configurations
• Multi-conductor or hybrid cables: Tests cover conductors against one another and against the cable screen

Applications

IEC 61196-1-105:2024 is critical for manufacturers, quality assurance labs, and testing facilities involved in the production and certification of coaxial communication cables used in:

• Telecommunication networks
• RF and microwave data transmission systems
• Broadcast infrastructure
• Aerospace and defense communication systems
• Industrial and commercial electronics requiring secure and reliable data connectivity

By adhering to this standard, stakeholders can ensure cable dielectric reliability, minimize failure risks in service, and comply with international safety and quality requirements.

Related Standards

• IEC 61196-1:2005 - Generic specification, definitions and requirements for coaxial communication cables
• IEC 61010-2-034:2023 - Safety requirements for measurement and test equipment related to insulation resistance and electric strength
• IEC 61156-1:2023 - Specification for multicore and symmetrical cables used in digital communications
• IEC 62783-1:2023 - Specifications for twinax cables in digital communication systems
• IEC 62807-1:2017 - Generic specification for hybrid telecommunication cables
• EN 50289-1-3:2001 - Test methods for communication cable dielectric strength

For further technical vocabulary and concepts, consult the IEC Electropedia and ISO online browsing platforms.

Compliance with IEC 61196-1-105:2024 ensures that coaxial communication cables meet stringent dielectric withstand voltage requirements, a key factor for durability, safety, and performance in critical communication infrastructures worldwide.