What is BS EN IEC 61753‑111‑08 about?
BS EN IEC 61753‑111‑08 is a series on fibre optic interconnecting devices and passive components. Fibre optic interconnecting devices and passive components is a fibre-optic telecommunications technology for delivering broadband network access to end customers. BS EN IEC 61753‑111‑08 define the requirements for standard optical performance under a set of specified conditions. BS EN IEC 61753‑111‑08 contains the minimum tests, test severities and measurement requirements that a sealed fibre optic closure need to meet in order to be categorised as meeting the IEC standard for category G – Ground.
BS EN IEC 61753‑111‑08 contains a series or a set of tests and measurements with clearly stated conditions, severities and pass/fail criteria. The set of tests is intended to be a basis to prove the product’s ability to satisfy the requirements of a specific application, market sector or user group.
Products having the same classification from one manufacturer that satisfy BS EN IEC 61753‑111‑08 will operate within the boundaries set by BS EN IEC 61753‑111‑08.
Note: Free-breathing closures are not covered in BS EN IEC 61753‑111‑08.
Who is BS EN IEC 61753‑111‑08 for?
BS EN IEC 61753‑111‑08 on fibre optic interconnecting devices and passive components is useful for:
- Telecommunication equipment and component manufacturers
- Design engineers
- Quality control personnel
- Research and development facilities
Why should you use BS EN IEC 61753‑111‑08?
Sealed closure for optical fibre cables provides mechanical protection and environmental sealing to the spliced cables. BS EN IEC 61753‑111‑08 guides you about optical performance testing of fibre as the mechanical and environmental performance of a fibre splice is vital to the optical cabling system. Conformance to performance standards demonstrates that a product has passed a design verification test.
BS EN IEC 61753‑111-08 provides requirements for the tests and measurement methods for testing of optical fibre components which helps you to determine the ability of an optical-fibre cable to withstand and recover from the effects of a compressive force.
BS EN IEC 61753‑111‑08 guide you about reliability testing, which is the subject of a separate test schedule, where the tests and severities selected are such that they are truly representative of the requirements of this reliability test program.
What’s changed since the last update?
BS EN IEC 61753‑111‑08:2021 supersedes BS EN 61753‑111‑8:2010. BS EN IEC 61753‑111‑08:2021 includes some technical and editorial changes with respect to BS EN 61753‑111‑8:2010. These include:
- Terms and definitions updated according to BS EN IEC 61753-1:2018 and BS EN IEC 61756-1:2019
- Test severities updated according to BS EN IEC 61753-1:2018
- Sealing tests are done with 20 kPa overpressure
- A pass-fail criterion of pressure loss during test added to mechanical sealing tests
- Vibration sealing test changed to 10 Hz, 3 mm amplitude and 1 000 000 cycles

