Material Name

Model

Application and Cable Criterion

70 PVC Jacket Material

H-70

For making 450/750V or lower voltage cable jacket, comply with GB/T8815-2002 and ROHS

70 Flexible PVC Jacket Material

HR-70

For making 450/750V or lower voltage cable jacket, comply with  GB/T8815-2002 and ROHS

90 PVC Jacket Material

HI-90

For making 35KV or lower voltage cable jacket, comply with  GB/T8815-2002 and ROHS

Test Item

Standard Value

H-70

HR-70

HI-90

Tensile strength(Mpa)

≥15.0

≥12.5

≥16.0

Elongation (%)

≥180

≥200

≥180

Strike brittle temperature()

-25

-30

-20

Volume resistivity at 20(Ω.m)

1.0×10⁸

1.0×10⁸

1.0×10⁹

Dielectric strength (mv/m)

≥18

≥18

≥18

Heat distortion (%)

≤50

≤65

≤40

Heat stableness at 200 (Minute)

≥50

≥60

≥80

Heat aging

Heat aging temperature ()

100±2

100±2

100±2

Heat aging time (h)

168

168

240

Tensile strength after aging (Mpa)

≥15.0

≥12.5

≥16.0

Tensile strength change (%)

±20

±20

±20

Elongation after aging (%)

≥180

≥200

≥180

Elongation change (%)

±20

±20

±20

Weight loss g/m²

≤23

≤25

≤15