Umgangatho ophezuluabaphuli beesekethe zetyala elibunjiweyozamkela izixhobo zokudibanisa ubhedu olumfusa olusemgangathweni ophezulu, iiplastiki zobunjineli ezithintela ilangatye kunye neenkqubo zokucima i-arc ezichanekileyo. Amandla azo ombane kunye nokuqhekeka asemgangathweni asemgangathweni ozinzileyo. Zibonelela ngokhuseleko oluchanekileyo kunye nokhuseleko lwe-short-circuit, iimpawu zokukhubeka ezihambelanayo, ukunyuka kobushushu obuphantsi, ukumelana ne-arc, ukusebenza okunamandla kobushushu, ukuthembeka okuphezulu kokusebenza ixesha elide, kwaye zifanelekile kwiimeko ezibalulekileyo ezifana nokusasazwa kombane kushishino. Zinexesha elide lewaranti kwaye ziphumelele iziqinisekiso ezingqongqo.
Ukusebenza kweemveliso eziphakathi ngokusisiseko kuyahlangabezana neemfuno zokusasazwa kwamandla aqhelekileyo. Izixhobo kunye neenkqubo zikumgangatho ophakathi. Ukuchaneka kokhuseleko kuyamkeleka. Amandla okuphuka kunye nokuqina kuphakathi. Umthwalo ophezulu wexesha elide unokubangela ukuveliswa kobushushu kunye nokuguga, kwaye izinga lokungaphumeleli liphezulu kancinci.
Iimveliso eziphantsi zihlala zisebenzisa izinto zobhedu ezikumgangatho ophantsi okanye iindawo ezigqunywe ngobhedu, ezinezakhiwo ezilula zokucima i-arc, iiparameter zokhuseleko eziphawulwe ngokungekho mthethweni, iingozi eziphezulu zokukhubeka, ukungaphumeleli kokusebenza okanye ukusebenza ngokungeyonyani, ukungalibazisi komlilo, kwaye zinokubangela ukutsha, ii-short circuits okanye imililo, nto leyo ebonisa iingozi zokhuseleko. Zisetyenziswa kakhulu kwii-circuits zexeshana okanye ezingezizo ezibalulekileyo.