ii-insulators zocingo zombane ezi-5 intshi zithetha ukuba ii-insulators ziya kugcina i-polywire, ucingo, i-polytape okanye i-polyrope ejikeleze i-5 intshi kude ne-T-post yentsimbi, nceda ubone le mifanekiso ilandelayo, ezi zi-5 intshi zentsimbi yombane, kukho iintlobo ezimbini kwicala lokufaka kwi-T-post yentsimbi.

Sisebenzisa ii-insulators zocingo zombane ezi-5 intshi, kuba i-T-post yentsimbi iyasebenza, i-polywire, ucingo, i-polytape okanye i-polyrope iya kuba kufutshane kakhulu ne-T-post yentsimbi ukuba sisebenzisa ii-insulators zombane ezimfutshane ezingaphantsi kwe-5 intshi. i-5 intshi yombane we-insulator yokugcina i-polywire, i-wire, i-polytape okanye i-polyrope ayiyi kuqhagamshelana ne-T-post yentsimbi xa isilwanyana sithinta i-polywire, ucingo, i-polytape okanye i-polyrope okanye imozulu embi.