Overview
IEC 61300-2-26:2023 is an international standard developed by the International Electrotechnical Commission (IEC). It specifies a test method for assessing the corrosion resistance of metals used in fibre optic interconnecting devices and passive components, with a focus on their performance in salt mist environments. This test ensures that such devices can withstand corrosive atmospheres, determining if dissimilar metals in assemblies are adequately protected against corrosion. The 2023 third edition brings significant updates, including harmonization with other relevant standards and enhanced definitions.
Key Topics
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Corrosion Resistance Testing:
The standard outlines procedures to expose fibre optic components to salt mist under controlled conditions, evaluating their resistance to corrosion over time.
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Test Setup and Conditions:
Guidance is provided on the preparation of the salt solution (5% by weight), chamber requirements, spray methods, and the appropriate exposure duration and temperature. Special attention is given to the configuration of devices under test (DUT), to ensure reliable and repeatable results.
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Measurement and Evaluation:
Detailed steps are described for preconditioning, initial and final examinations, cleaning procedures, and measurement of optical and physical properties before and after exposure. The presence of corrosion and changes in optical performance are key pass/fail criteria.
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Harmonization:
IEC 61300-2-26:2023 aligns with IEC 61753-1:2018 and IEC 60068-2-11:2021, ensuring consistency in testing conditions and severity categories for fibre optic components.
Applications
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Fibre Optic Connectors and Adapters:
Ensures connectors used in telecommunications and data networks maintain performance and reliability, even in coastal or industrial areas where salt exposure is prevalent.
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Passive Optical Components:
Applicable to a range of passive devices such as couplers, splitters, attenuators, and enclosures, supporting their long-term use in both indoor and harsh outdoor environments.
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Network Infrastructure Reliability:
By verifying corrosion resistance, manufacturers and network operators can mitigate the risk of connection failures, minimizing maintenance costs and preventing signal degradation due to material deterioration.
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Qualification and Type Approval:
The standard is essential for product qualification and type approval processes, guiding manufacturers in demonstrating compliance with international performance requirements.
Related Standards
- IEC 61753-1:2018 – Specifies general performance standards for fibre optic interconnecting devices and passive components, including required environmental and mechanical tests.
- IEC 60068-2-11:2021 – Details environmental testing procedures for salt mist exposure, referenced for methods and safety practices.
- IEC 61300-1 – Provides general guidance and definitions for test and measurement procedures in this component family.
- IEC 61300-2-38 – Covers sealing tests for pressurized fibre optic closures, often related for components requiring environmental protection.
- IEC 61300-3 Series – Defines visual and optical measurement techniques necessary for evaluation before and after salt mist testing.
- IEC 62005 Series – Addresses reliability qualification of fibre optic interconnecting devices and passive components.
IEC 61300-2-26:2023 supports manufacturers, laboratories, and network providers in ensuring optical components meet internationally recognized corrosion-resistance requirements, directly contributing to the durability and dependability of fibre optic infrastructure.
Open preview (PDF)Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-26: Tests - Salt mist
