What is BS EN IEC 60794‑1‑211 about?
BS EN IEC 60794‑1‑211 discusses optical fibre cables. BS EN IEC 60794‑1‑211 defines test procedures to measure the shrinkage of the sheath due to thermal exposure of cables.
BS EN IEC 60794‑1‑211 defines two test methods to measure the shrinkage of the sheath due to thermal exposure of cables intended for termination with connectors and cables for general purposes.
Method F11A for testing cable sheath shrinkage is used when the fibre or buffered fibre and the sheath of the cable are intended to be fully terminated into a connector at one or both cable ends. And the second test method, F11B, is used for the general cable sheath shrinkage testing.
Method F17 tests for cable sheath shrinkage on a cable sample with a minimum length of 10 m or longer by measuring the fibre protrusion and, indirectly, the buffered fibre or fibre tube protrusion at both ends.
Who is BS EN IEC 60794‑1‑211 for?
BS EN IEC 60794‑1‑211 on optical fibre cables is applicable to:
- Manufacturers of optical fibre cables
- Design engineers
- Quality control personnel
Why should you use BS EN IEC 60794‑1‑211 for?
If optical fibre cables are expected to play a vital role in the science of transmission of data, they need to adhere to the highest quality standards. IEC 60794-1-211 provides you with test methods F11A and F11B that test the cable sheath shrinkage of optical fibre cables due to thermal exposure.
Testing for product quality enables you to give your customers high-quality communication equipment and devices that can withstand weather conditions and give them an uninterrupted, high-speed communication experience.
What’s changed since the last update?
BS EN IEC 60794‑1‑211:2021 supersedes BS EN IEC 60794‑1‑22:2018. BS EN IEC 60794‑1‑211:2021 includes some technical changes with respect to BS EN IEC 60794‑1‑22:2018. These include:
- Method F11 (cables intended for patch cords) of IEC 60794-1-22:2017 was renumbered F11A and renamed as "sheath shrinkage (cables to be terminated with connectors)"
- A second method F11B is newly included that was adapted from ANSI/TIA-455-86-A
- In method F11A, the thermal exposure from ambient to the specified temperature was replaced by temperature cycling between a low and high temperature according to IEC 60794-1-22, method F1
- In method F11A, the continuing of the test cycles until the shrinkage exhibits a variation less than ±1 mm was replaced with a fixed number of cycles specified by the detail specification
- In method F11A, the average was changed to maximum sheath shrinkage that shall not exceed the value specified in the relevant detail specification.
- In both methods, the alternative that the sample may be cut to length and the length between the cut sheath ends measured is added