• EPDM Insulating rubber compound for medium voltage cable System 1
EPDM Insulating rubber compound for medium voltage cable

EPDM Insulating rubber compound for medium voltage cable

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
-
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  630KV  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

1.111.51

151201

60110

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

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

135168h

135168h

135168h

135168h

135168h

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 at20Ωm

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 at90Ωm

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: What are the factors that determine the longevity of an olive net?
The factors that determine the longevity of an olive net include the quality of the material used, the frequency and intensity of use, proper storage and maintenance, exposure to harsh weather conditions, and any potential damage caused by pests or other external factors.
Q: Do olive nets protect against pests other than olive fruit flies?
No, olive nets are primarily designed to protect against olive fruit flies and may not be effective against other types of pests.
Q: What is the material of plastic bottles? Will plasticizers be produced?
At present, 90% of plastic bottles in the market are polyethylene terephthalate (PET) as a bottle body material. Professor Jiang Pingping of the school of chemical and materials engineering at Jiangnan University said that the substance in the bottled water PET generally does not contain plasticizers, which are determined by the manufacturing process of PET.
Q: Can olive nets be used in windy areas?
Yes, olive nets can be used in windy areas. However, it is important to ensure that the nets are properly secured to prevent them from being blown away or damaged by strong winds. Additionally, using heavier or reinforced nets can provide better protection in windy conditions.
Q: How do olive nets prevent damage from heavy machinery during harvesting?
Olive nets prevent damage from heavy machinery during harvesting by acting as a protective barrier that catches the falling olives, ensuring they do not come into direct contact with the machinery. This helps to prevent the olives from being crushed or damaged, preserving their quality and maximizing the yield.
Q: How does an olive net affect the overall fruit flavor in the olive grove?
An olive net can have a positive impact on the overall fruit flavor in the olive grove. By preventing the olives from falling to the ground and potentially getting damaged or contaminated, the net helps maintain the quality of the fruit. This results in a more consistent and flavorful harvest, as the olives remain untouched and free from any potential negative influences.
Q: Can olive nets be used for olive trees in regions with limited water resources?
Yes, olive nets can be used for olive trees in regions with limited water resources. Olive nets are primarily used to collect the fallen olives during harvesting, but they can also provide some shade to the trees, reducing water evaporation from the soil. Additionally, the nets can act as a barrier, preventing excessive evaporation caused by wind. However, it is important to note that while olive nets can help in conserving water, proper irrigation techniques and water management strategies are still crucial in regions with limited water resources.
Q: Can olive nets be used in conjunction with other harvesting methods?
Yes, olive nets can be used in conjunction with other harvesting methods. Olive nets are commonly used to collect olives that are knocked off the tree during mechanical harvesting methods such as shaking or using mechanical harvesters. They help gather the olives efficiently and prevent them from falling to the ground. Additionally, olive nets can also be used alongside traditional hand-picking methods to catch any olives that may drop during the process, ensuring a thorough harvest.
Q: Can olive nets be used in hilly or sloped olive groves?
Yes, olive nets can be used in hilly or sloped olive groves. These nets are designed to be versatile and can be adjusted to fit different terrains. They can effectively catch olives on slopes and prevent them from rolling away, making harvesting easier and more efficient.
Q: Can olive nets be used in areas with frequent wildfires?
No, olive nets should not be used in areas with frequent wildfires as they can potentially increase the risk of fire spread and pose a safety hazard. It is important to prioritize fire safety measures in such areas.

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