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Communication and power with PE sheath material

  Date:2013/12/25 17:09:07 Hits:1745
Category Model Product Name The main purpose
PE sheath material NDH Black resistance to environmental cracking low density polyethylene sheath material Used to require a higher resistance to environmental cracking communication cables, control cables, signal cables and power cable sheathing layer, the maximum operating temperature of 70 ℃
LDH Black linear low density polyethylene sheath material
MH Black medium density polyethylene sheath material For communication cables, submarine cables, power cables, the maximum operating temperature is 90 ℃
GH Black high density polyethylene sheath material
MDPE Black medium density polyethylene sheath material For communications cable

Test Project Model Black polyethylene plastic wire and cable Polyethylene cable jacket material
NDH LDH MH GH MDPE
Before aging Unit          
The melt flow rate quality g/10min ≦2.0 ≦2.0 ≦2.0 ≦2.0 ≦1.5
Density g/cm3 ≦0.940 ≦0.940 ≦0.940~0.955 ≦0.955~0.978 ≦0.940~0.960
Tensile strength Mpa ≧13.0 ≧14.0 ≧17.0 ≧20.0 ≧19.0
Tensile yield stress Mpa - - - 16.0  
Tensile Strain % ≧500 ≧600 ≧600 ≧650 ≧600
Low temperature brittleness -76 By By By By By
Resistance to environmental stress cracking Fo/h ≧96 ≧500 ≧500 ≧500 ≧96
200 ℃ oxidation induction Min ≧30
Carbon black content % 2.6±0.25
Carbon black dispersion of 3 -
Vicat Softening Point - - 110 110 -
Hot air oven aging MPa         -
Tensile strength % - 13.0 16.0 20.0 -
Tensile Strain % - 500 500 650 -
Low Elongation % - - - 175 -
Dielectric strength Ed/(KV/mm) ≧25 ≧25 ≧25 ≧25 ≧25
Volume resistivity Pv/Ω.m ≧1 x 1014 ≧1 x 1014 ≧1 x 1014 ≧1 x 1014 ≧1 x 1014
Permittivity ε t 2.80 2.80 2.75 2.75 ≦2.80
Environmental requirements (ROSH) - By By By By By

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