Fibrillated polypropylene filler yarn is a type of water-blocking filler rope used in cables. It is made by fibrillating a polypropylene film, which creates a network of fibers that provide excellent water-blocking properties. The filler yarn is used to fill the spaces between cable components, preventing the ingress of water into the cable. This helps to ensure the long-term reliability of the cable and reduce the risk of failure due to water damage. Fibrillated polypropylene filler yarn is commonly used in low and medium voltage power cables, as well as communication cables.
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