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Heat shrink Tubing & cold shrink Tubing

Semi-Conductive/Insulation Dual Wall Tube

Semi-Conductive/Insulation Dual Wall Tube
Semi-Conductive/Insulation Dual Wall Tube
semi-conductive/insulation dual wall tube are suitable for power cable joint up to 36kv.

*Unit:PC,M
*Temperature:125℃
*Voltage:10-36kv
*Color:black/red
*Contious Longth:0.1-1.22m
*Shrink Ratio:3:1
*Size Range:35-140mm

semi-conductive/insulation dual wall tube are suitable for power cable joint up to 36kv.

PRODUCT DESCRIPTION

1.Introduce

     DW series of heat shrink semi-conductive/insulation dual wall tube are made from polyolefin material with red inner insulation layer and black outer semi-conductive layer. They are suitable for power cable joint up to 36kv.

2.Technical Data

2.1 Inner Insulation Layer

Property

Test Method

Result

Tensile strength

 ASTM D638

13 N/mm2

Elongation

ASTM D638

450%

Heat shock@250℃/30’

ASTM D2671

No Cracking .No Flow

Cold blend@-30℃

 ASTM D2671

No Cracking

Dielectric strength

ASTM D149

25kv/mm

Volume resistivity

 ASTM D257

1x1014Ω.cm

Water absorption

 ASTM D570

<0.5%

 

2.2 Outer Semi-conductive Layer

Property

Test Method

Result

Tensile strength

 ASTM D638

14 N/mm2

Elongation

ASTM D638

300%

Heat shock@250℃/30’

ASTM D2671

No Cracking .No Flow

Cold blend@-30℃

 ASTM D2671

No Cracking

Dielectric strength

ASTM D149

25kv/mm

Volume resistivity

 ASTM D257

1x102Ω.cm

Water absorption

 ASTM D570

<0.5%

 

3.Type and Size

Size

Before Applied (mm)

After Applied (mm)

Packing

(M/Spool)

Inner

 Diameter

Inner

 Diameter

Inner Wall

Thickness

outer Wall

Thickness

Ø35

≥35

12

1.4

4.6

1~1.22m/pc

Ø45

≥45

15

1.4

4.6

1~1.22m/pc

Ø55

≥55

18

1.4

4.6

1~1.22m/pc

Ø65

≥65

25

1.4

4.7

1~1.22m/pc

Ø85

≥85

30

1.4

4.7

1~1.22m/pc

Ø100

≥100

38

1.5

4.7

1~1.22m/pc

Ø120

≥120

45

1.7

5.3

1~1.22m/pc

Ø140

≥140

60

1.7

5.3

1~1.22m/pc