Hendrix/Kerite Cable, a premier provider of high-quality underground power distribution products, announced its DUAL BLOCK™ product, providing a dual water-blocking capability on Hendrix primary, underground cable.
Water is one of the enemies of long-life in primary cable, as water entering the cable core can lead to premature failure. Hendrix DUAL BLOCK™ helps prevent this from occurring. First, a fill compound is continuously applied into the conductor interstices. This prevents longitudinal water migration. Second, a water-swellable powder is applied under the polyethylene jacket. This prevents water from migrating along the neutral wires, under the jacket. Taken together, these two applications provide a reliable barrier that prevents water from entering the cable core.