3M15KV cold shrink three core middle Connector 3M Cold shrink Cable Outside the terminal Insulating material High quality silicon rubber Material, which has good hydrophobic property. Water drops roll off at any time on it, do not form a conductive water film, and has hydrophobic self-healing property. In addition, it has strong insulation, resistance to electric traces, corrosion resistance and prevention of direct light , Ensure stable performance for long-term use. The service life is the same as that of the cable body.
3M Cold shrinkable cable terminal, unique material formula and manufacturing process, make it closely adhere to the main insulation of the cable , Provide constant and good radial pressure to the cable body , The partial discharge is small, the initial voltage is high, the insulation impact level is higher than the existing standard level, and the waterproof and sealing performance is good , Same as cable body " breathing " 。
3M15KV cold shrink three core intermediate joint www.phxxkj.cn All products have passed the certification of the world's leading test institutions and the Electrical Equipment Quality Inspection Center of Wuhan High Voltage Research Institute of State Power Corporation of China. The cold shrinkage technology is also called pre expansion technology, that is to use mechanical means to pre stretch the formed rubber parts within their elastic range, and then cover them with plastic wire cores for fixation. During installation, just pull out the wire core, and the elastic rubber body will shrink quickly and be tightly bound to the required installation position. 3M In the 1960s, the Power Products Department was the first in the world to invent the cold shrink technology and apply it to power cable Accessories industry and communication industry are widely welcomed by users because of their ease of use, safety and reliability
3M15KV cold shrink three core intermediate joint 3M The external insulation material of the cold shrinkable cable terminal is high-quality silicone material, which has good hydrophobic performance. Water drops roll off at any time on it, do not form a conductive water film, and has hydrophobic self-healing function. In addition, its strong insulation, resistance to electric traces, corrosion resistance and prevention of direct light, ensuring long-term stability. The service life is the same as that of the cable body. 3M Cold shrinkable cable terminal connector, unique material formula and manufacturing process, make it closely attached to the main insulation, provide constant and good radial pressure to the cable body, small partial discharge, high initial voltage, insulation impact level higher than the existing standard level, good waterproof sealing, breathing with the cable.
S/N Test items Test conditions and standards test result
one Power frequency withstand voltage 105kV1min No flashover and breakdown adopt
two partial discharge stay 39kV Lower, discharge capacity ≤ 10pc adopt
three Constant pressure load cycle (in air) Voltage applied to conductor 23kV And heated to（ 95-100 ）° C 。 Where the temperature is stable 2h , cooling 3h Of three Cycles. No breakdown and the test results shall be evaluated by the following tests
four Impulse voltage test 250kV ，± ten second No flashover and breakdown No breakdown and flashover
five DC withstand voltage 156kV ， 15min No breakdown and flashover
six AC withstand voltage 104kV,4h No breakdown and flashover
