| 摘要 |
<p>A strand filling compound for electrical cables, and cables including such a compound (7), which prevents migration of water lengthwise of the stranded wires (8) of the conductor of the cable. The strand filling compound (20) has a low conductive filler content without reducing the level of conductivity of the compound and is readily pumpable at temperatures above about 100 °C. The strand filling compound is provided by employing an immiscible polymer blend containing conductive filler located primarily in one phase, the immiscible polymer blend being comprised of a low molecular weight polymer and a second polymer, preferably an adhesive EVA. Preferably, an adhesive extender which is miscible with the low molecular weight polymer, and fine particles of a material admixed with the filling compound and/or provided as a thin layer of particles of a material applied over the filling compound which swells when it absorbs water are also included in the filling compound.</p> |
