Abstract: Provided is a polymer composition usable as a covering material of a power cable for outdoors, and more particularly, a non-crosslinked polyethylene composition for a power cable using a non-crosslinked type polyethylene resin instead of using a crosslinked polyethylene which is widely used around the world as the existing power cable insulator. The power cable using a covering material made of the polymer composition according to the present disclosure may have excellent tracking resistance to be appropriately used in costal areas containing large salts, industrial complexes containing large pollutants, and the like.

Abstract: Provided is a polymer composition usable as a covering material of a power cable for outdoors, and more particularly, a non-crosslinked polyethylene composition for a power cable using a non-crosslinked type polyethylene resin instead of using a crosslinked polyethylene which is widely used around the world as the existing power cable insulator. The power cable using a covering material made of the polymer composition according to the present disclosure may have excellent tracking resistance to be appropriately used in costal areas containing large salts, industrial complexes containing large pollutants, and the like.

Abstract: The present invention is an uncrosslinked linear medium-density polyethylene resin composition for a power cable, which is applicable to an insulating layer, a semi-conducting layer or a sheath layer. Specifically, the uncrosslinked polyethylene composition includes: 100 parts by weight of a polymer having a linear medium-density polyethylene resin having an ?-olefin having 4 or more carbon atoms as a comonomer and having a melt index of 0.6-2.2 g/10 min (at 190° C. under a load of 5 kg), a differential scanning calorimetry (DSC) enthalpy of 130-190 joule/g and a molecular weight distribution of 2-30; and 0.1 to 10 parts by weight of one or more additive(s) selected from a flame retardant, an oxidation stabilizer, a UV stabilizer, a heat stabilizer and a process aid.

Abstract: Disclosed is uncrosslinked linear medium-density polyethylene resin composition for a power cable, which is applicable to an insulating layer, a semi-conducting layer or a sheath layer. Specifically, the uncrosslinked polyethylene composition includes: 100 parts by weight of a polymer comprising a linear medium-density polyethylene resin comprising an ?-olefin having 4 or more carbon atoms as a comonomer and having a melt index of 0.6-2.2 g/10 min (at 190° C. under a load of 5 kg), a differential scanning calorimetry (DSC) enthalpy of 130-190 joule/g and a molecular weight distribution of 2-30; and 0.1 to 10 parts by weight of one or more additive(s) selected from a flame retardant, an oxidation stabilizer, a UV stabilizer, a heat stabilizer and a process aid.