I-electrical par yamukela uhlelo lokulawula oluhlelekayo lwe-PLC, lenza ukuthi iphepha liphakele, lithuthe bese liyafa ngokulawula okuzenzakalelayo nokuhlola okugcwele. Futhi ifakwe inhlobonhlobo yokushintshwa kokuphepha okungavalwa ngokuzenzakalelayo uma kuba nanoma yisiphi isimo esingalindelekile.