... laying vertically burried or in tunnels,trenches,wells.There is no limitance in deference level240-2000240-8001000-2000YJLW02- ... cableFor laying vertically burried or in tunnels,trenches,wells.There is no limitance in deference levelYJLW03YJLLW03XLPE insulated corrugated aluminum ... outdoors,its enough to bear pulling tension,but isnt able to bear external machine force,single-core cables must not be ...