EPDM Insulating rubber compound for medium voltage cable

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Loading Port:: Shanghai

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Supply Capability:: 3000 Tons kg/month

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EPDM Insulating rubber compound for medium voltage cable

I. Type and application

Type	Product	Application
XJ-34A	90℃ Insulation rubber compound for medium voltage cable	Insulating rubber compound for 6～30KV flexible medium voltage cable
XJ-34B	90℃ Insulation rubber compound for medium voltage cable	Insulating rubber compound for 6/10KV medium voltage cable
XJ-34C	90℃ Insulation rubber compound for medium voltage cable	Insulating rubber compound for 8.7/15KV medium voltage cable
XJ-34D	90℃ Insulation rubber compound for medium voltage cable	Insulating rubber compound for 10/20KV medium voltage cable
XJ-34E	90℃ Insulation rubber compound for medium voltage cable	Insulating rubber compound for 26/35KV medium voltage cable

II. Product description

XJseries insulating rubber compound formedium voltage cable, based on EPDM rubber, is mixed with various additives,and is elaborated in the extra-clean conditions. Voltage grade of cable is from6kV to 30kV. The compound has outstanding performances of vulcanization, processing, physical,mechanical, aging and electrical properties. The compound is complied withQ/320585JSDT058-2003 standard.

III. Processing

Processing Equipment	Compression ratio	L/D	Processing temp.	Recommended vulcanize temp.
Common rubber extruder	1.1：1～1.5：1	15：1～20：1	60～110℃	160-200℃

IV. Maximum useful shelf life

12 months at 20℃, 6 months at 30℃.

V. Properties

Table

Item	XJ-34 A		XJ-34B		XJ-34C		XJ-34D		XJ-34E
Item	Standard	Typical	Standard	Typical	Standard	Typical	Standard	Typical	Standard	Typical
Tensile Strength N/mm²	≥7.0	10.9	≥8.5	11.0	≥8.5	9.4	≥8.5	11.5	≥8.5	11.0
Elongation at Break %	≥300	430	≥200	400	≥200	280	≥200	410	≥200	400
Oven aging	135℃168h		135℃168h		135℃168h		135℃168h		135℃168h
Variation on Tensile Strength %	±15	+14	±30	+11	±30	+6.5	±30	+10.5	±30	+11
Variation on Elongation at Break %	±15	-3	±30	-4	±30	-7	±30	-8.5	±30	-7
Dielectric Loss Angular Tangent value	≤0.003	0.0019	≤0.003	0.0026	≤0.003	0.0025	≤0.003	0.0024	≤0.003	0.0020
Dielectric Constant ε	≤2.8	2.60	≤2.8	2.65	≤2.8	2.64	≤2.8	2.62	≤2.8	2.60
Dielectric Strength MV/m	≥25	31.9	≥25	30	≥25	30	≥25	30	≥25	32
Air bomb aging test 127℃40h
Tensile Strength N/mm²		10.0
Variation %	±15	-5	±30	-5	±30	-5	±30	-4	±30	-4
Elongation at Break %		420
Variation %	±15	-3	±30	-3	±30	-2	±30	0	±30	0
Hot Prolongation 15min20N/cm	250℃		250℃		250℃		250℃		250℃
Elongation Under Load %	≤100	25	≤175	50	≤175	50	≤175	50	≤175	50
Permanent Elongation after cooling %	≤10	1	≤15	0	≤15	0	≤15	0	≤15	0
Volume Resistivity at20℃Ω﹒m	≥1.0×10¹⁴	2.6×10¹⁴	≥1.0×10¹²	7.2×10¹³	≥1.0×10¹²	7.0×10¹³	≥1.0×10¹²	1.5×10¹⁴	≥1.0×10¹²	5.2×10¹⁴
Volume Resistivity at90℃Ω﹒m	¹
Elastic Modulus
At 150% Elongation /mm²			≥4.5	6.0	≥4.5	6.1	≥4.5	6.2	≥4.5	7.2
At 50% Elongation N/mm²			≤7.5	5.1	≤7.5	5.0	≤7.5	5.2	≤7.5	6.1
Capacitance variation after water immersion 50±2℃
Between one day and seven days %			≤15	6	≤15	5	≤15	5	≤15	5
Between seven days and fourteen days %			≤5	1	≤5	1	≤5	1	≤5	1
Ozone Resistance
Ozone Concentration 2-3.33PPM
Surface Variation	Non cracking	Pass	Non cracking	Pass	Non cracking	Pass	Non cracking	Pass	Non cracking	Pass
Hardness IRHD	--	68	≥80	80	≥80	80	≥80	80	≥80	80
Density	--	1.21

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Q: Can olive nets be used for harvesting olives?: Yes, olive nets can be used for harvesting olives. These nets are specifically designed to be placed under olive trees to catch the falling olives during the harvesting process. They help to collect the olives efficiently and prevent them from getting damaged.

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