In modern telecommunications infrastructure, optical fibre cables form the backbone of high-speed data transmission networks. These cables are deployed in demanding environments where they must withstand physical stress during installation, operation, and long-term service. To ensure reliability, durability, and consistent performance, globally recognized testing standards play a crucial role. One such important standard is IEC 60794-1-21:2015, developed by the International Electrotechnical Commission (IEC).

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