Polyethylene has high insulation resistance, good voltage resistance, small dielectric coefficient and the influence of medium loss temperature and variable frequency is also small, which can not only meet the requirements of transmission performance, but also ensure the service life of the cable. In order to reduce mutual crosstalk and external interference between loops, the cable is shielded. Cable shielding requirements are based on different occasions respectively: pair combination shielding, pair composition of cable total shielding, pair combination after total shielding and other methods.
Rated voltage (U0/U):300/500V Long-term working temperature is 70℃.
Ambient temperature for laying should not be lower than -40℃ for fixed laying and -15℃ for non-fixed laying.
Minimum bending radius: no less than 6 times of cable diameter for unarmored layer, no less than 12 times of cable diameter for armored layer