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

Q: Can olive nets be used for olive tree frost protection?: Yes, olive nets can be used for olive tree frost protection. These nets help create a protective barrier around the trees and act as a shield against frost, reducing the risk of damage to the olive trees during cold weather.

Q: Do olive nets require regular maintenance?: Yes, olive nets do require regular maintenance. These nets need to be properly installed and regularly inspected to ensure they remain in good condition. They should be cleaned regularly to remove debris and prevent damage. Additionally, any tears or holes should be repaired promptly to maintain their effectiveness in protecting the olives.

Q: Can olive nets be used for olive trees in urban settings?: Yes, olive nets can be used for olive trees in urban settings. Olive nets are commonly used in olive tree cultivation to protect the ripening olives from birds and other pests. Urban settings often have a higher bird population, making olive nets even more crucial in these areas to ensure a successful harvest.

Q: Can olive nets be used in hilly or sloped areas?: Yes, olive nets can be used in hilly or sloped areas. The nets are designed to be adjustable and can be secured to adapt to the terrain, allowing them to effectively cover olive trees and prevent olives from falling on uneven surfaces.

Q: How can plastic paint be used to prevent paint falling off?: Annealing: plastic forming easy to form internal stress, after coating stress concentration place is easy to crack. Annealing or whole face treatment can be used to eliminate stress. Annealing treatment is to ABS plastic molding parts heating to thermal deformation temperature below, that is, 60 degrees, insulation 2h. Due to the adoption of the process requires a lot of equipment investment, therefore, the whole surface processing technology, the configuration can eliminate the internal stress of the plastic solution at room temperature on the plastic surface can be 15 ~ 20min.

Q: What is the shell of the relay? What exactly is plastic?: Other crosslinked plastics include unsaturated polyester, epoxy resin, phthalic two, diallyl resin, etc.. In thermoplastic resins, the molecular chains of resins are linear or branched, with no chemical bonds between the chains, and soften the flow when heated. The process of cooling hardens is a physical change. The first heating thermosetting plastics can be softening, heated to a certain temperature, chemical reaction and curing a chain to harden, this change is irreversible, then again, when heated, can no longer become soft flowing.

Q: Can olive nets be used in combination with pruning?: Yes, olive nets can be used in combination with pruning. Pruning involves trimming or cutting the branches of olive trees to promote better growth, fruit production, and overall health. Olive nets, on the other hand, are used to catch the olives that fall during harvesting, preventing them from getting damaged or lost. By pruning the tree before setting up the nets, it can provide easier access to the olives and ensure a more efficient harvest.

Q: Can olive nets be used in both commercial and home olive orchards?: Yes, olive nets can be used in both commercial and home olive orchards. Olive nets are commonly used to protect the olives from birds and other pests during the harvest season. They are versatile and can be easily installed and removed, making them suitable for both small-scale home orchards and larger commercial operations.

Q: What is the average lifespan of an olive tree?: The average lifespan of an olive tree is typically between 500 to 600 years.

Q: Is PC the same as plastic?: This leads to the appearance of it is easy to scratch, PC material is a Han Dynasty atlas, but its strength and good toughness, regardless of weight or general beat, as long as you're not trying to hit it with a stone, it is enough to longevity.

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