Emhlabeni wengqalasizinda yamandla, imibhoshongo engu-500kV ehambisa ugesi idlala indima ebalulekile ekuqinisekiseni ukudluliswa kukagesi ngendlela ephumelelayo nethembekile emabangeni amade. Le mibhoshongo, eyaziwa nangokuthi imibhoshongo yensimbi yama-engeli noma imibhoshongo ye-lattice, iklanyelwe ukusekela izintambo zamandla kagesi aphezulu, okuyenza ibe yingxenye ebalulekile yegridi kagesi.

Esinye sezici ezibalulekile zemibhoshongo engu-500kV ukwakhiwa kwayo kusetshenziswa insimbi. Lokhu okubalulekile kunikeza imibhoshongo amandla nokuqina okudingekayo ukuze imelane nezinto futhi isekele umthwalo osindayo wezintambo zamandla. Ukufakwa kukathayela kuphinde kuvikele imibhoshongo ekugqwaleni, inwebe isikhathi sayo sokuphila futhi iqinisekise ukwethembeka okuqhubekayo kwezintambo zokudlulisela ezizisekelayo.

Idizayini yemibhoshongo engu-500kV kagesi iklanywe ngokucophelela ukuze ihlangabezane nezidingo ezithile zezintambo zikagesi ezinamandla kakhulu. Le mibhoshongo ivame ukubizwa ngokuthi imibhoshongo yobunzima, njengoba yakhelwe ukumelana nokushuba komshini namandla okucindezela asetshenziswa izintambo zikagesi. Ukwengeza, imibhoshongo eyisiyingi ephindwe kabili isetshenziselwa ukusekela amasethi amabili ezintambo zikagesi, okuqhubeka nokwandisa umthamo nokusebenza kahle kwengqalasizinda yokudlulisa.

Uma kukhulunywa ngokwakhiwa kwezintambo zikagesi ezingu-500kV, kubalulekile ukukhetha uhlobo olufanele lombhoshongo. Isakhiwo se-lattice sale mibhoshongo sinikeza amandla adingekayo kuyilapho kunciphisa inani lempahla edingekayo, okuyenza ibe yisixazululo esingabizi kakhulu sokusekela izintambo zamandla kagesi aphezulu. Ngaphezu kwalokho, ukuklanywa kwale mibhoshongo kumele kuhambisane nezindinganiso eziqinile zobunjiniyela ukuze kuqinisekiswe ukuphepha nokuthembeka kwengqalasizinda yokudlulisa.

Ukubaluleka kwemibhoshongo engu-500kV kucaca nakakhulu uma kubhekwa indima abayibambayo ekwakhiweni kwamasistimu kalayini ka-500kV. Lezi zinhlelo zinomthwalo wemfanelo wokudlulisa amanani amakhulu kagesi ezindaweni ezikude, ukuxhuma izikhungo zokuphehla ugesi ezindaweni ezinabantu abaningi kanye nezindawo zezimboni. Ukuklanywa kwesistimu kalayini wokudluliswa kukagesi, okuhlanganisa ukukhethwa kanye nokubekwa kwemibhoshongo, kubalulekile ekuqinisekiseni ukulethwa kwegezi ngendlela efanele nethembekile kubathengi.

Sengiphetha, imibhoshongo engu-500kV ehambisa ugesi iyingxenye ebalulekile yengqalasizinda kagesi, esekela ukudluliswa kukagesi ezindaweni ezikude ngendlela esebenza kahle futhi enokwethenjelwa. Ukwakhiwa kwazo kwensimbi, idizayini ye-strain tower, kanye neqhaza ezinhlelweni zikalayini kagesi ongu-500kV kuzenza zibaluleke kakhulu ekuqinisekiseni ukuzinza nokuqina kwegridi kagesi. Njengoba isidingo sikagesi siqhubeka sikhula, ukubaluleka kwale mibhoshongo ekusekeleni izintambo zikagesi ezinamandla angeke kweqiswe.