16/10/2026
The GSS-1000 Series Optical Fiber Cable Water Pe*******on Testing Machine is intended to establish the ability of a fiber optic cable to block water migration, in accordance with IEC-60794-1-2-F5. The test applies to continuously water-blocked cables, and its purpose is to determine the ability of a cable to block water migration along a specified length. Compliance is checked on samples of cable using one of two methods: method F5A tests for water migration between the outer interstices of the optical core and the outer sheath, whereas method F5B tests for water migration over the entire cross-section designed to be water-blocked. During the procedure the sample is supported horizontally and a 1 m height of water is applied for 24 h at a temperature of (20 ± 5) °C. A water-soluble fluorescent dye or other suitable coloring agent may be used to aid in the detection of water seepage.
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