If water enters a fiber optic box, you must first remove the outer casing from the box and blot the water with clean paper. Then, you can use a hair dryer at a safe distance to dry the interior. Water-blocking yarn is placed in the loose waterproof casing, and super absorbent resin is used in the loose waterproof casing. (SAP) Powdered full dry-well. The “dry” cable design compares favorably with a “wet” design that uses a flooding compound in the voids within the cable core and/or a thixotropic gel within the buffer tube to achieve comparable water blocking performance. Some common water-blocking materials include: Absorbent Swellable Tape: Absorbent Swellable Tape is typically made from a non-woven material. Water-resistant fiber optic cable refers to the special type of fiber optic cable that are designed and specified for installations where the cable will come in contact with water or moisture, such as aerial, direct buried, or in conduit.
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