Fire -retardant gopher protected cable of district environment -friendly

The utility model relates to a fire -retardant gopher protected cable of district environment -friendly, sheath including many insulation core and cladding sinle silk, insulation core comprises conductor and insulating layer, the insulating layer constitute by the inner insulating layer and the disposable coextru -lamination of external insulation layer, the sheath includes the low smoke zero halogen sheath body and sets up in the internal environmental protection n -nonanoic acid aroma oxamide protection against rodents agent of sheath. Be equipped with the soft foam matter filling layer of plasticity between the many insulation core, be equipped with the adiabatic reinforcement of fire prevention in the middle of the soft foam matter filling layer of plasticity. It does not have steamed fire -retardant elastomer stopping to be equipped with between insulation core and the sheath. The inner insulating layer be radiation cross -linking polyethylene the inner insulating layer, the external insulation layer be the fire -retardant radiation cross -linking polyolefin external insulation layer of low smoke and zero halogen. The utility model discloses have outstanding protection against rodents protection against insects performance, simultaneously, the utility model discloses heat stability is good, and is pollution -free to the environment.