By means of various switches this ring can be sectionalised to isolate damaged sections so that supplies are maintained to the other sections via branch breakers.
Ngokusebenzisa izishobozekuvule nekucima umbene ezahluke neyo, esisangqa sinya bekelwe bucala ukuphephisa icala elenakeleyo ukuze unikezelo luqhubekeke kumanye amacandele nge branch bocakus.