Waterproofing of optical fiber cables
While fiber optic cables have some moisture resistance properties, they cannot be considered fully waterproof. The glass fibers at the core are vulnerable to damage when unprotected, and the cable jackets and connector joints provide openings where water molecules can intrude over time. Some common water-blocking materials include: Absorbent Swellable Tape: Absorbent Swellable Tape is typically made from a non-woven material. It is commonly placed between buffer tubes, strength members, and outer jackets in outdoor, duct, and direct-buried cable designs. OPGW (Optical Ground Wire) integrates function of grounding with fiber communication.
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