What is BS EN 60793-1-33 - Stress corrosion susceptibility for optical fibres about?
BS EN 60793 is a multi-standard series covering stress corrosion susceptibility for optical fibres, enabling the assessment of optical fibres to ensure operational stability and longevity in communication and transmission applications.
BS EN 60793 contains descriptions of the five main test methods for determining stress corrosion susceptibility parameters.
BS EN 60793‑1‑33 establishes uniform requirements for the mechanical characteristic of stress corrosion susceptibility for silica-based fibres.
In BS EN 60793‑1‑33, dynamic fatigue and static fatigue tests are used to determine the (dynamic) nd value and (static) ns value of stress corrosion susceptibility parameters. Currently, only the nd-value is assessed against the specification. Measured values greater than 18 per this procedure reflect the nd-value of silica, which is approximately 20. Higher values will not translate to demonstrably enhanced fatigue resistance.
BS EN 60793‑1‑33 provides guidance on silica fibre mechanical tests to determine the fracture stress and fatigue properties under conditions that model the practical applications as closely as possible. The following test methods are used for determining stress corrosion susceptibility:
- A: Dynamic nd value by axial tension
- B: Dynamic nd value by two-point bending
- C: Static ns value by axial tension
- D: Static ns value by two-point bending
- E: Static ns value by uniform bending
BS EN 60793‑1‑33 methods are appropriate for category A1, A2 and A3 multimode, class B single-mode fibres and class C intraconnecting single-mode fibres. These tests provide values of the stress corrosion parameter, n, that can be used for reliability calculations according to IEC TR 62048.
In BS EN 60793‑1‑33, the information common to all methods is contained in Clauses 1 to 10, and information pertaining to each individual test method appears in Annexes A, B, C, D, and E.
Who is BS EN 60793-1-33 - Stress corrosion susceptibility for optical fibres for?
BS EN 60793-1-33 on optical fibres stress corrosion susceptibility is useful for:
- Manufacturers of optical fibre cables
- Dealers and importers of optical fibre cables
- Telecommunication companies
- Testing houses and labs for optical fibres
- Design engineers
- Quality control personnel
- Research and development facilities
- Internet service providers
Why should you use BS EN 60793-1-33 - Stress corrosion susceptibility for optical fibres?
Optical fibres are used most often to transmit light between the two ends of the fibre and find wide usage in fibre-optic communication, where they permit transmission over longer distances and at a higher bandwidth than electrical cables. Failure stress or time statistics for various sampling groups are used to calculate the stress corrosion susceptibility parameters.
BS EN 60793-1-33 provides users guidance on tests like the population of fibre, gauge length, stress or strain rates, a testing environment, enabling users to measure the reliability of fibre.
BS EN 60793-1-33 provides users guidance on test methods, apparatus, sampling, specimens, procedure, calculations, and results, ensuring the accuracy of the determination of stress corrosion susceptibility for optical fibres to ensure operating stability, quality and performance.
With obedience and compliance of BS EN 60793-1-33, users can assess stress corrosion susceptibility for optical fibres to establish uniform requirements for limiting and preventing corrosion in optical fibres.
What’s changed since the last update?
BS EN 60793-1-33:2017 supersedes BS EN 60793‑1‑33:2002, which is withdrawn. BS EN 60793-1-33:2017 includes some technical changes with respect to BS EN 60793‑1‑33:2002. These include:
- Removal of RTM
- Changes to the scope