Moisture-creep protected telephone cable - using plastics insulated cores and moisture barrier interstitial filler of petroleum jelly, synthetic hydrocarbons greases, oils or wax

摘要

The filler is sprayed or otherwise applied to the quads or conductor gps. whilst they are being laid up into the cable formation which has a non-circular profile. This is first lapped with a tape having a large number of pockets or cavities filled with the same creep barrier material, either impregnated woven textile, open pored plastic or embossed paper or plastic. When the outer sheath is applied to the cable, it deforms the e.g. hexagonal group of cores into a smaller circle.