The product applies to aerial electric lines with rated voltage Uo/ U up to and including 0.6/ 1 kV. ( 1) Rated voltage Uo/ U is 0.6/ 1 kV. ( 2) Permissible continuous working temperature of cable conductor is 90 0C. ( 3) Ambient temperature is not lower than -20 0C when cable is installed. ( 4) Permissible minimum bending radius is as follows: _For O. D. Less than 25 millimeter, epual to or greater than 4 times O. D. _For O. D. Not less than 25 millimeter, epual to or greater than 6 times O. D.