one Convenient installation
Using cold shrink technology , No need for hot work and special tools , There is no need to insert one by one, just gently pull out the core rope, and the grounding adopts constant force Spring No welding or copper wire binding is required, which saves time, labor and space during construction. It is especially suitable for places with narrow construction space. Each set of products is packaged separately , Both are equipped with installation instructions and component lists with illustrations.
two Wide application
3M Cold shrink Cable The terminal head is constructed by pre expansion technology during manufacturing, so each specification can be applicable to multiple cable diameters and has strong compatibility with cable diameters. In terms of structure, the cold shrinkable cable terminal is of overall prefabricated compact design, and the electric stress control pipe, external insulation protection pipe and rain skirt are integrated. up to now, 3M The company already owns 35KV Complete series of indoor and outdoor cold shrinkable cable terminals up to and including ethylene Cables, XLPE cables and EPDM Cable
Etc.
three Reliable Performance
3M The dielectric constant is twenty-five Of Hi-K The dielectric constant, dielectric strength, insulation resistance and dielectric loss factor of the material remain stable for a long time. Through this stress control method, the high electric field strength on the terminal surface can be reduced to 15V/mil Within the safety range of, the high potential moves to the end of the cable, rather than concentrating near the cable shield cut-off point, so that the distribution of the external insulation electric field of the cable terminal tends to be divergent and uniform. Therefore, the discharge voltage of the external insulation is increased, and the diameter of the entire cable terminal is reduced, and the shape coefficient is increased, which also improves the discharge voltage.
3M Outside the cold shrink cable terminal Insulating material It is a high-quality silicone 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 " 。
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.
four Complete quality control
Product conforms to the United States IEEE-48 Germany VDE 0278 And China GB11033-89 And other international standards ISO9002 Certification of quality system standards. 3M The company has set up in the same industry in the United States, Germany and other places , Large scale R&D center , Provide technical development at any time , Detection and support , To ensure product quality.
