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DIN EN IEC 60794-1-308 VDE 0888-100-308:2023-12

Optical fibre cables

Part 1-308: Generic specification – Basic optical cable test procedures – Cable element test methods – Ribbon residual twist test, Method G8

(IEC 60794-1-308:2023); German version EN IEC 60794-1-308:2023
Class/Status: Standard, valid
Released: 2023-12
VDE Art. No.: 0800923

The ribbon residual twist test, or flatness test, evaluates the degree of permanent twist in a cabled optical fibre ribbon.
This document applies to optical fibre ribbons in optical cables for use with telecommunication equipment and devices employing similar techniques, and to optical fibre ribbons in cables having a combination of both optical fibres and electrical conductors.
Throughout the document, the wording "optical cable" can also include optical fibre units, microduct fibre units, etc.
NOTE The environmental testing of optical fibre ribbon would be valuable for some applications. Useful information about suitable test methods can be found in the optical fibre standards IEC 60793-1-50, IEC 60793-1-51, IEC 60793-1-52, and IEC 60793-1-53.