Abstract: A medium voltage electric cable having a conductor, an inner semi-conductive layer, an insulating layer, an outer semi-conductive layer, a wire metal screen, a filler layer made from an extruded elastomeric low smoke zero halogen (LSOH) composition containing a polyethylene homopolymer and/or copolymer having a density lower than 0.93 g/cm3 and a metal hydroxide, and an outer sheath made from a low smoke zero halogen (LSOH) composition containing a polymer mixture of an EVA polymer and polyethylene homopolymer and/or copolymer having a density lower than 0.93 g/cm3, the polymer mixture being charged with a metal hydroxide and a phyllosilicate clay.

Abstract: The present invention concerns an electric cable (10; 20) comprising: —an electric conductor (11, 21) surrounded with an electrically insulating layer (12, 22) made from a first polymer composition comprising: (a) polyvinyl chloride as a first polymer matrix, (b) an amount up to 45 phr of a plasticizing system consisting of a phthalate plasticizer and a second plasticizer selected from: dialkyl-adipate, dialkyl-sebacate or dialkyl-azelate, wherein the alkyl group contains from 4 to 10 carbon atoms; the first polymer composition having a limiting oxygen index (LOI) up to 30%; and—an outer sheath (13, 24), surrounding the insulating layer (12, 22), made from a second polymer composition comprising: (i) a halogen-free second polymer matrix; and (ii) a halogen-free inorganic flame-retardant filler in amount suitable to impart flame retardant properties to the outer sheath (13, 24).

Abstract: A medium voltage electric cable is disclosed the cable comprising: a conductor; an inner semi-conductive layer arranged in a radially outer position with respect to the conductor; an insulating layer arranged in a radially outer position with respect to the inner semi-conductive layer and directly contacting the inner semi-conductive layer; an outer semi-conductive layer arranged in a radially outer position with respect to the insulating layer and directly contacting the insulating layer; a wire metal screen arranged in a radially outer position with respect to the outer semi-conductive layer; a filler layer arranged in a radially outer position with respect to the wire metal screen and interpenetrating within the wire metal screen, the filler layer being made from an extruded elastomeric low smoke zero halogen (LSOH) composition comprising a polyethylene homopolymer and/or copolymer having a density lower than 0.

Abstract: A flame retardant cable for low-voltage applications is disclosed which comprises at least one conductor individually electrically insulated by a layer of polymeric material, a fire-resistant tape containing an inorganic material wrapped around said at least one individually electrically insulated conductor and an multilayered outer sheath having flame-retardant properties which encloses said at least one individually electrically insulated conductor and said fire-resistant tape, wherein said multilayered outer sheath comprises an inner layer and an outer layer, the inner layer being made of a flame-retardant polymeric material having a limiting oxygen index (LOI) higher than the LOI of the flame-retardant polymeric material forming the outer layer of said sheath.

Abstract: A flame retardant cable for low-voltage applications is disclosed which comprises at least one conductor individually electrically insulated by a layer of polymeric material, a fire-resistant tape containing an inorganic material wrapped around said at least one individually electrically insulated conductor and an multilayered outer sheath having flame-retardant properties which encloses said at least one individually electrically insulated conductor and said fire-resistant tape, wherein said multilayered outer sheath comprises an inner layer and an outer layer, the inner layer being made of a flame-retardant polymeric material having a limiting oxygen index (LOI) higher than the LOI of the flame-retardant polymeric material forming the outer layer of said sheath.

Abstract: The present invention concerns an electric cable (10; 20) comprising: —an electric conductor (11, 21) surrounded with an electrically insulating layer (12, 22) made from a first polymer composition comprising: (a) polyvinyl chloride as a first polymer matrix, (b) an amount up to 45 phr of a plasticizing system consisting of a phthalate plasticizer and a second plasticizer selected from: dialkyl-adipate, dialkyl-sebacate or dialkyl-azelate, wherein the alkyl group contains from 4 to 10 carbon atoms; the first polymer composition having a limiting oxygen index (LOI) up to 30%; and—an outer sheath (13, 24), surrounding the insulating layer (12, 22), made from a second polymer composition comprising: (i) a halogen-free second polymer matrix; and (ii) a halogen-free inorganic flame-retardant filler in amount suitable to impart flame retardant properties to the outer sheath (13, 24).