Uchungechunge lwe-GW9-24 (W) Iswishi yokunqamula i-HV yangaphandle iyisakhiwo sesigxobo esisodwa, esisetshenziselwa ukuvula noma ukuvala amasekhethi ngaphansi kwe-voltage kodwa isimo esingalayishiwe kusistimu kagesi yangaphandle engu-24kV. Ine-draw hook egxilile kanye nedivayisi yokuzikhiya, kanye nokusebenza okusebenzayo nge-insulating hook-stick. Ngaphezu kwalokho, ukushintshwa kohlobo lwe-Anti-pollution kungaxazulula i-flash ngempumelelo ngenxa yokungcola ngesikhathi sokusebenza kweswishi yokunqamula ukuze kwanelise imfuneko yabasebenzisi endaweni engcoliswe kabi.
