Applications:
Various composite insulators, lightning arresters, insulators and high- & low-voltage electrical fittings for electrical lines of railways and urban light rails.
Type 1 is applicable to press molding, and Type 2 is applicable to injection molding.
Typical Technical Properties:
Item | Standard Electrical Insulating Rubber | General Purpose Electrical Insulating Rubber | Common Electrical INsulating Rubber |
LR-ES1 LR-ES1U | LR-ES2 LR-ES2U | LR-EG1 LR-EG1U | LR-EG2 LR-EG2U | LR-EC1 LR-EC1U | LR-EC2 LR-EC2U | LR-ER1 LR-ER1U | LR-ER2 LR-ER2U |
Appearance | Product inherent color, no mechanical impurities |
Density, g/cm3 | 1.48-1.56 |
Hardness, Shore A | 62±4 | 60±4 |
Tensile Strength, MPa ≥ | 4.5 | 4.0 |
Elongation at Break,% ≥ | 260 | 280 | 260 | 280 | 220 | 240 | 220 | 240 |
Tension Set, %≤ | 2.0 |
Tear Strength, kN/m ≥ | 13 | 12 |
Volume Resistivity, Ωcm≥ | 7*1014 | 5*1014 | 3*1014 | 1*1014 |
Dielectric Strength, kV/mm≥ | 22 | 20 | 18 |
Dielectric Loss, tg δ≤ | 3*10-2 | 6*10-2 | 7*10-2 |
Dielectric Constant | 3-4 |
Tracking Resistance & Erosion Resistance | 1A4.5 Grade | pass |
Erosion Depth, mm≤ | 2.5 |
Flame Retardancy, 3mm | FV-0 |
●The physical property data listed in the above table are for reference only.
●Curing conditions: 175*5min;
●Ratio of curing agent: 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane: 0.4%.
Instructions for industrial use:
◆The user is obliged to understand the scope of application and purpose of the product used;
◆Please do not use the above products for transplantation or injection into the human body;
◆The test report accompanying the goods is only the test result of the quality inspection department based on the company's vulcanization conditions and test methods;
◆Due to the difference in vulcanization conditions and test methods, we cannot guarantee that both parties can obtain the same test results. It is recommended that users use the test data obtained under their own test conditions as a reference for performance;
◆Any of the above performance data and applicable suggestions are only a reference for the performance of the company's products, and are not a guarantee of the effectiveness or versatility of the company's products in specific applications.
Package &Storage:
In 20kg carton packing with two layers, the inner packaging is a polyethylene plastic bag, and the outer packaging is a carton.
Keep in cool, dry and ventilated place. When transporting the product, it should be protected from rain, moisture, sun, acid, alkali and other impurities, and away from fire and heat sources. Keep in unopened containers, shelf life is 12 months from the date of production. It is shipped as non-hazardous substance.
Storage beyond the shelf life does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.
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