HJ0303 Semi-Conductive Conductor Shielding Compound For Mv Power Cables-HJ Polymer China Co., Ltd.

Physical Properties	Test Method	Unit	Typical Value
Density,23℃	ASTM D1505	g/cm³	1.14
Tensile Strength	ASTM D638	MPa	13
Elongation at Break	ASTM D638	%	200
After Oven Aging,168hrs at 136℃
Tensile Strength Retention	ASTM D638	%	≥85
Elongation at Break Retention		%	≥85
Hot Set Test,200℃,0.2MPa,15min	IEC540
Elongation under Loading		%	50
Permanent Deformation after Cooling		%	8
Moisture Contentt	Karl Fisher	ppm	400
Brittleness Temperature	ASTM D746	℃	-45
Electrical Properties
DC Volume Resistivity at
20℃	ASTM D991	Ω.cm	50
90℃		Ω.cm	500

1.Temperature Setting of Extruder:
a

Zone	1#	2#	3#		4#	Tube	Head
Temp. (℃)	85℃	95℃	100℃		110℃	110℃	110℃

Zone

Tube

Head

Feeding、Water Cooling、Screw

Temp. (℃)

80℃

95℃

100℃

110℃

not recommend

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.

HJ0303 meets the applicable requirements as below when processed using sound extrusion practices and testing procedures.
-AEIC CS 7 and CS8
-IEC 60840
-IEC 60502
-ICEA S-66-524/NEMA WC 7
-UL 1072

HJ0303 has improved the problem of screen invagination in the processing for the big size cable 240mm²and above.
HJ0303 is a cross-linkable semi-conductive shielding compound, specially designed for bonded conductor shield of 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 flowability, good performance to prevent scorch and stable volume resistivity.
HJ0303 has excellent compatibility with copper conductor without copper-oxidation by adding special accessory ingredient.

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.

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.

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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HJ0303 Semi-Conductive Conductor Shielding Compound For Mv Power Cables

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