1

Before ageing test

1.1 Tensile strength(MPa)

≥5.0

1.2 Elongation at break(%)

≥250

2

After oven ageing test

2.1 Test condition

100±2℃/168h

2.2 Middle range of tensile strength (MPa)

≥4.2

2.3 Middle range of elongation at break (%)

≥250

3

Compatibility oven ageing test

3.1 Test condition

80±2℃/168h

3.2 Tensile strength rate(%)

±25

3.3 Elongation rate at break (%)

4

Air bomb ageing test

4.1 Test condition

127±2℃/40h,0.55MPa

4.2 Tensile strength rate(%)

4.3 Elongation at break rate (%)

5

Ozone ageing test

5.1 Test condition

40℃/72h, concentration 2ppm or 25℃/24h,260ppm

5.2 Test result

Without crack

6

Heat extension test

6.1 Test condition

200±3℃/15min,stress 20N/cm²

6.2 Loading elongation rate(%)

< 100

6.3 Un-loading elongation rate(%)

< 25

7

Low-temperature bend test

7.1 Test condition

-40℃/4h

7.2 Low-temperature elongation at unbreak rate (%)

> 30

7.3 Wire surface after low-temperature bend

Without crack

8

Oxygen index and flame resistance (EN50265-2-1 burning test)