5.Using the approximate calculation of the maximum electric field strength of the cylinder-cylinder electrode system with equal radii, find the minimum distance between the conductors in a 380 kV three-phase energy transmission line with a conductor diameter of 32 mm(Edhava=30 kV/cm). n this layout,if the distance between conductors is 2 m, how many kV will there be a jump?(puncture) What would be the maximum field strength in case of 4 m conductor opening on the same line? Calculate.

6. When the boundary surface between the air wiith r1=1 and the pertinax with r2=4 is taken is the plane y=0, the electric field in the air is E1=120 kV/cm which makes an angle of a1=300 with the normal, so the absolute value of E2, the normal and tangential area components, Calculate the angle of a2, Show whether the porcelain can be drilled as the puncture strength of the porcelain is given as 100 kV/cm?