Magawo a ZBW (XWB) amtundu wa AC box-type substations amaphatikiza zida zamagetsi zamagetsi zothamanga kwambiri, zosinthira, ndi zida zamagetsi zotsika mphamvu kukhala zida zonse zogawira mphamvu, zomwe zimagwiritsidwa ntchito m'nyumba zazitali zamatauni, zakumidzi ndi zakumidzi. nyumba, malo okhala, madera otukuka apamwamba kwambiri, Zomera zazing'ono ndi zapakatikati, migodi, minda yamafuta, ndi malo omanga osakhalitsa amagwiritsidwa ntchito kulandira ndi kugawa mphamvu zamagetsi munjira yogawa mphamvu.