City rail cable sheathing material

The invention discloses a city rail cable sheathing material. The city rail cable sheathing material is prepared from a main material and an auxiliary material, wherein the main material contains the following ingredients in parts by weight: 20-25 parts of W type neoprene and 13-17 parts of chlorinated cis-butadiene rubber; the auxiliary material contains the following ingredients in parts by weight: 1-1.5 parts of magnesium oxide, 1-1.5 parts of zinc oxide, 0.5-0.9 part of aluminum hydroxide, 0.2-0.4 part of stearic acid, 0.5-1 part of accelerant DM, 0.6-0.8 part of accelerant NA-22, 0.1-0.3 part of methyl thiuram disulfide, 1.0-1.3 parts of plasticizer tetra-lead trioxide sulfate, 0.45-0.6 part of dioctyl phthalate, 1.2-1.4 parts of microcrystalline paraffin, 0.9-1.2 parts of iso-octyl decyl adipate, 0.1-0.15 part of N,N-phenyl-p-phenylenediamine, 0.2-0.4 part of anti-aging agent 445, 5-8 parts of reinforcer carbon black N660, 4.5-6 parts of reinforcer semi-reinforcing carbon black, 3-4 parts of precipitated white carbon black, 8-10 parts of calcined clay, 3-4 parts of calcium carbonate and 0.7-1.4 parts of sulfur.