Kapangidwe katsopano ka chingwe cha kuwala kwapangidwa ndi gulu la ochita kafukufuku, lomwe limalonjeza kuchepetsa kwambiri kutaya kwa kufalitsa ndi kupititsa patsogolo kayendetsedwe ka kayendedwe ka magetsi. Kapangidwe katsopanoka kamagwiritsa ntchito ukadaulo wa Optical Ground Wire (OPGW), womwe umagwiritsidwa ntchito kwambiri potengera magetsi ...