Joson akafambira mberi zvikuru mukugadzira tekinoroji ye70kN disc insulator, uye tension test kugadzikana kweiyo straight head disc insulator inopfuura 80KN.

Joson akafambira mberi nekukurumidza mukugadzira tekinoroji

iyo tension test kugadzikana kweyakatwasuka musoro disc insulator (cylindrical head disc insulator) inopfuura 80KN

Sampling bvunzo yezvinhu zvakakura kunze kwenyika

Magetsi ekuita bvunzo yemagetsi porcelain zvigadzirwa

Electric porcelain creepage kuyerwa