Compound Dual Layers Heat Shrinkable Tube

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Brand：

 Compound dual layers tube is made of insulate and semi-conductive shrinkable materials which had been processed through a special process. There is a good capacity of insulation in inner layer, and semi-conduction in outer layer. Two layers are closed each other that possessed electro-magnetic shield reliability.

 

 

Specification

Before Shrink I.D.

After Shrink I.D.

Total Layer Thickness

Length

(mm)

(mm)

(mm)

(±0.5mm)

(mm)

30/11

≧ 30

≦ 11

5

300~1200

35/13

≧ 35

≦ 13

5

300~1200

45/16

≧ 45

≦ 16

5

300~1200

55/20

≧ 55

≦ 20

5

300~1200

65/25

≧ 65

≦ 25

5

300~1200

85/30

≧ 85

≦ 30

7

300~1200

100/38

≧ 100

≦ 38

7

300~1200

120/45

≧ 120

≦ 45

7

300~1200

Technical Index:

Items

Test Method Inner layer/Outer layer

Index Inner layer/Outer layer

Hardness (Shore A)


≦ 90

Tensile Strength (MPa)

GB/T1040

≧ 12/ ≧ 14

Elongation Break (%)

GB/T1040

≧ 300

Heat Aged 120 ℃ ×168h


K 1 >0.8, K 2 >0.7

Volume Resistivity

GB/T1040

≧ 1×10 14 /50-100

Water Absorption

ASTM D570/

≦ 0.5/

Insulation and outer shielding layer for intermediate connection of 35kV and below power cables and other places with insulation and shielding needs.