What is BS EN 3745-517 - Cable tie clamping test about ?
BS EN 3745-517 is a European standard that specifies a method of determining the attenuation variation of an optical cable when clamped to a mandrel with cable ties, simulating the condition in an installed harness.
BS EN 3745-517 also covers preparation of specimens, apparatus and methods to conduct cable tie clamping test.
Who is BS EN 3745-517 - Cable tie clamping test for ?
BS EN 3745-517 on cable tie clamping test is useful for: 
- Aerospace avionic and fibre optic technology 
- Spacecraft and space products manufacturers 
- Aerospace and defence industries  
- Design engineers for optical cables 
- Quality control personnel for spacecraft products 
- Manufacturers of optical cables  
Why should you use BS EN 3745-517 - Cable tie clamping test ?
A cable tie clamping test is carried out to assess the performance of electrical cables at low temperatures. 
The attenuation of an optical fibre measures the amount of light lost between input and output. Attenuation is the reduction in the power of the light signal as it is transmitted and is caused by passive media components such as cables, cable splices, and connectors. 
Attenuation in optical fibre occurs due to many factors, including light absorption, cable bending, connector loss. BS EN 3745-517 helps you in measuring attenuation variation during such cases.  
BS EN 3745-517 gives you guidelines on checking the break resistance and attenuation variation recovery of optical cable to improve overall quality of optic fibres and cables.
