Data Type	Standard High  VoltageInsulator	General Purpose    High Voltage Insulator	Common High VoltageInsulator
Item	HE-T-1 HE-T-1U	HE-C-1 HE-C-1U	HE-D-1 HE-D-1U	HE-E-1 HE-E-1U
Appearance	white,gray or dark-red,no obvious extraneous matter
Density(g/cm³)	1.48±0.03	1.48±0.03	1.48±0.03	1.48±0.03
Hardness(Shore A Points)	60±2	60±2	58±2	58±2
Temsile Strength(Mpa≥)	4.5	4.0	4.0	4.0
Elongation at Breakage(%≥)	280	280	240	240
Tension Set(%≤)	4	4	4	4
Tear Strength(kN/m≥)	13	13	13	13
Volume Resisitlvity(cm≥)	7x1014	5x1014	3x1014	1x1014
Dielectric Constant(8≥)	3-4	3-4	3-4	3-4
8≥ Dielectric Loss Tangent( tg)	3×10-2	6×10-2	7×10-2	7x10²
Dielectric Strength(kV/mm≥)	22	20	18	17
Tracking Resistance8     Erosion Resistance Class	TMA4.5, ≤2.5mmTMA4.5,Depth of Erosion≤2.5mm
FireResistance(Class)	FV-0

Physical and Mechanical Properties are based on first vulcanization data,Electrical Properties are drawn from second vulcanization data. First vulcanization condition for test piece:175℃x5min Second vulcanization condition for test piece:200℃x5h Vulcanizator:80% DMDBH,quantity added 0.65% Please let us know if you are interested in our products timely. We shall be prompt to give you a feedback as soon as we receive your detailed specifications. Our experienced R&D engineers will try best to meet your requirements. We look forward to receiving your inquiry and hope to have the opportunity to work with you in the future. Welcome to visit our company at your free time. We have established strong and long-term cooperative relationships with many overseas customers. We welcome domestic and foreign customers to contact us through online or offline. Besides the high-quality products, we also have the professional after-sales service team to provide equipment selection, product use and technical advice. We long to have a chance to provide the cost-effective products and service for you. When you are interested in our products after viewing our products, please feel free to contact us for inquiries. You can send us an email and we will get back to you as soon as possible. If it is convenient for you, you can find our address on our website and then come to visit our factory to learn more about our products on your own. We are always ready to establish long-term stable cooperative relations with any potential customers in related fields.