DD mndandanda wa DC magetsi amatengera kapangidwe kake, ndikuzindikira mphamvu zapamwamba, zamakono zotulutsa ukadaulo wotsogola wotsogola kudzera pamalumikizidwe amitundu yambiri.Dongosololi litha kutengera kapangidwe ka N + 1 redundancy, zomwe zimathandizira kwambiri kudalirika kwadongosolo.Zogulitsa zimagwiritsidwa ntchito kwambiri pakukula kwa kristalo, kukonzekera kwa fiber optical, zojambula zamkuwa ndi zojambulazo za aluminiyamu, plating ya electrolytic ndi chithandizo chapamwamba.