Isithuba se insulators yocingo lombane sisetyenziselwa iposti yentsimbi, i t post insulators yocingo lombane kufuneka ibambe isitishi ngokuqinileyo, ngenxa yoko inoyilo olukhethekileyo. Nceda ubone le mifanekiso ilandelayo. ngokusekwe kwicala lokufaka elahlukileyo, zimbini iintlobo zeendlela zokufaka. ezi t insulators zocingo zombane ziya kugcina i-polywire wire okanye i-polyrope ejikeleze i-2 ″ okanye i-3 ″ kude neposti yentsimbi.