内径(mm)
Inner Diametor

壁厚(mm)
Wall Thickness

标称
Nominal

公差
Tolerance

标称
Nominal

公差
Tolerance

1；1.5

±0.15

0.20

0.75

2；2.5；

±0.20

3

±0.25

4；5；6

±0.25

0.30

0.75

7；8；9；10

±0.50

0.30

0.75

性能指标 Property requirements

性能Property

指标Requirements

耐焊热性
Resistance to soldering heat

通过（仅限内径5毫米及以下）
Pass (only for sleeving having nominal bore Diameter up to and including 5mm)

加热后弯曲性
Bending after heating

不得开裂，试验温度180℃经48±1小时。
No cracking or detachment of coating shall all be visible after bending around mandrels after48±1h at 180℃

低温时的弯曲性
Bending at low temperature

不得开裂，试验温度-15℃。
No cracking or detachment of coating shall be visible after bending around mandrels while at-15℃

绝缘电阻MΩ
Insulation resistance

≥103

温度指数
Temperature index

155℃

击穿电压，千伏
Breakdown Voltage kv
直芯棒25毫米电极
Straight mandrel with 25mm electrode

室温下
Room temp

高温下
Elevated temp

湿热处理后
Damp heat

中值
Central value

≥4.0

≥1.6

≥1.2

低值
Lowest individual value

≥2.5

≥1.0

≥0.8