Black Resistance to Electricity Mark PE compound

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Product Description:

Black Resistance to Electricity Mark PE compound


Type and application

Type

Product

Application

NDGJ-01

Black Weatherability and Resistance to Electricity Mark HDPE Insulating Compound for Aerial Cables

Applied to less than  10KV aerical cables as insulation which has the requirements of resistance to  electricity mark.

NDPE-22

Black Resistance to  Electricity Mark PE Jacket Compound

Applied to ADSS fiber  cables as jacket which has the requirements of resistance to electricity  mark.

NDPE is a black and resistance to electricity mark PE jacketcompound special for ADSS cables, which based on PE polymer. NDPE has specialadditive. It has very good performance of resistance to electricity mark, andexcellent electrical properties, weatherability, tenacity, abrasive resistanceand excellent resistance to environmental stress crack. Meeting DL/T 788-2001standard.

Processing

The NDPE compound suits to process with extruder which L/D is 25 orabove 25. And it should be dried before using, the temperature is 90.

the following temperature() profile of extruder is recommended:

Zone

1 Zone

2 Zone

3 Zone

4 Zone

Head

Die

Temperature

185

215

220

240

245

250

Note: The processing parameters are for reference only, optimalconditions may vary according to the equipment used. The cooling water tankshould be used sectionally cooling with warm-water echelon in order to reduceinternal stress.

Storage andtransport

Packaging25kg/bag PE membrane inside bag and Kraft outside bag.

Storage and transport: Avoiding in direct sunlight and weathering.The storage place should be in clean, cool, dry, and ventilated conditions.

Properties

Table

Test Item

unit

NDGJ-01

NDPE-22

Standard Value

Typical Value

Standard Value

Typical Value

Density

g/cm3

0.945-0.978

0.95

≤1.2

1.12

2.16kg

Melt Flow Rate

g/10min

≤0.4

0.25

≤0.4

0.33

Tensile Strength

MPa

≥20.0

28.0

≥18.0

20.0

Yield Strength

MPa

≥16.0

21.9

≥15.0

16.0

Elongation at Break

%

≥650

780

≥650

700

Low Temp. Elongation at Break

%

≥175

350

≥175

240

Impact Brittleness Temp.

≤-76

Pass

≤-50

Pass

1154h

Thermal Deformation

%

1

1

Vicat Softening Temp.

≥110

127

≥110

127

Volume Resistivity

Ωm

≥1.0×1014

6.0×1014

≥1.0×1014

4.0×1014

Dielectric Strength

MV/m

≥35

36

≥30

33

Dielectric Constant

≤2.45

2.41

2.5

Dielectric loss tangent

≤0.001

0.0008

Resistance to environmental stress crack

h

500

pass

500

Pass

Resistance to thermal stress crack

h

≥96

Pass

≥96

Pass

Carbon black dispersity

Scatter

≥6

7

≥6

7

     

Note:1The sample made method is thermoplastic pressing which is accord toGB9352 standard.

     Typical value should not be as standard.


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