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HJ0302 Semi-conductive Insulation And Conductor Shielding Compound for MV Power Cables [Bonded Insulation Grade]

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  • HJ0302 Semi-conductive Insulation And Conductor Shielding Compound for MV Power Cables [Bonded Insulation Grade]
  • HJ0302 Semi-conductive Insulation And Conductor Shielding Compound for MV Power Cables [Bonded Insulation Grade]
  • HJ0302 Semi-conductive Insulation And Conductor Shielding Compound for MV Power Cables [Bonded Insulation Grade]
  • HJ0302 Semi-conductive Insulation And Conductor Shielding Compound for MV Power Cables [Bonded Insulation Grade]
  • HJ0302 Semi-conductive Insulation And Conductor Shielding Compound for MV Power Cables [Bonded Insulation Grade]
  • HJ0302 Semi-conductive Insulation And Conductor Shielding Compound for MV Power Cables [Bonded Insulation Grade]

Power Cable Conductor Shield

HJ0302 Semi-conductive Insulation And Conductor Shielding Compound for MV Power Cables [Bonded Insulation Grade]

Cross-linked bonded insulating shielding material is a semi-conductive composite material designed for medium voltage extruded insulated cables with a rated voltage not exceeding 36kV, suitable for dual applications of conductor shielding layer and insulating shielding layer. This material is particularly suitable for high-temperature dry vulcanization processing technology, has excellent conductivity, good processing fluidity, stable volume resistivity and excellent thermal stability, and has a wide range of application value in modern medium voltage cable manufacturing.
The material has strong adaptability to extrusion equipment and a wide processing window, and is particularly suitable for modern high-speed and efficient dry vulcanization production lines.
As a new generation of cross-linked semi-conductive shielding material dedicated to medium voltage cables, this product provides cable manufacturers with an efficient, reliable and environmentally friendly integrated solution with its stable electrical properties, excellent processability and structural bonding. With the continuous improvement of safety and durability requirements of medium voltage power grids, this type of material will play a more critical role in the construction of intelligent power transmission and distribution and green energy infrastructure.

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Physical Properties Test Method Unit Typical Value
Density, 23℃ ASTM D1505 g/cm³ 1.14 
Tensile Strength ASTM D638 MPa 14 
Elongation at Break ASTM D638 % 200 
After Oven Aging, 168hrs at 136℃ ASTM D638
Tensile Strength Retention % ≥85
Elongation at Break Retention % ≥85
Hot Set Test , 200℃ , 0.2MPa, 15min IEC540
Elongation under Loading % 50 
Permanent Deformation after Cooling % 8 
Moisture Content Karl Fisher ppm 400 
Brittleness Temperature ASTM D746 ℃ -45 
Electrical Properties
DCVolume Resistivity at
20℃ ASTM D991 Ω.cm 50 
90℃ Ω.cm 500 

It contains carbon black: 33%-35%

1. Temperature Setting of Extruder:

a

Zone 1# 2# 3# 4# Tube Head
Temp. 75℃  85℃  100℃  100℃  110℃  110℃ 

b

Zone 1# 2# 3# 4# Tube Head Feeding、Water Cooling、Screw
Temp. 80℃  85℃  100℃  100℃  110℃  110℃  65℃ 

2.It's recommended to use stainless steel wire filter (20×40×20).
3. The above temperature settings are the most typical ones. With different extruder devices, it can be adjusted in terms of the practical situation after extrusion in use, combining with melting pressure and current, in order to achieve the best extrusion result.


HJ0302  meets the applicable requirements as below when processed using sound extrusion practices and testing procedures.
-AEIC  CS 7and  CS 8
-IEC 60840
-ICEA S-66-524/NEMA WC 7
-UL 1072
-IEC 60502

HJ0302 is a cross-linkable semi-conductive shielding compound, specially designed for both semi-conductive conductor and insulation shield of the extruded insulated power cables rated voltage up to 36KV.
It is suitable for dry vulcanization processing method at high temperature. It provides fine surface smoothness, nice extrusion fowability, good performance to prevent scorch and stable volume resistivity.

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About Us
HJ Polymer China Co., Ltd.
HJ Polymer China Co., Ltd.

HJ Polymer China Co., Ltd. founded in 2002, specializes in the R&D and manufacturing of high-performance semi-conductive shielding materials for cables. With an annual production capacity of 62,000 tons, the company holds over 40% of the domestic market and exports to Europe, the U.S., the Middle East, and Asia.

HJ Polymer China Co., Ltd. Delivery Capacity

HJ Polymer operates 13 dedicated production lines within a 30,000+ m2 facility, utilizing automated process control systems to ensure efficient and stable delivery.

HJ Polymer China Co., Ltd. Collaboration

Our R&D team includes PhDs and senior engineers actively involved in national and industry standards. We’ve also established a graduate workstation with Jiangsu University of Science and Technology, promoting integrated industry-academia collaboration.

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  • HJ Polymer China Co., Ltd.
  • HJ Polymer China Co., Ltd.
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