IEC 60794-1-218 Ed. 1.0 b:2025

IEC 60794-1-218:2025, Defines test procedures to establish uniform requirements for the
environmental performance of:
• optical fibre cables for telecommunication equipment and devices employing similar
techniques, and
• cables having a combination of both optical fibres and electrical conductors.
Throughout this document, the wording "optical cable" can also include optical fibre units,
microduct fibre units, etc.
This document defines a test standard to determine the ability of optical cable elements from a
cable exposed in a mid-span entry (expressed) and stored in a pedestal, closure or similar to
withstand the effects of temperature cycling by observing changes in attenuation. The optical
cable element bundles up single or multiple optical fibres, e.g. loose tube, tight buffer tube, or
optical fibre ribbon.
See IEC 60794-1-2 for a reference guide to test methods of all types and for general
requirements and definitions.