Kebul na lantarki tare da na'urorin jan ƙarfe, allon madubi na semi conductive, XLPE rufi, allon rufewa na Semi conductive, allon ƙarfe na ƙarfe na kowane cibiya, Kayan kwanciya na PVC, sulke na ƙarfe na ƙarfe na galvanized (SWA) da murfin PVC na waje.Don cibiyoyin sadarwa na makamashi inda ake tsammanin damuwa na inji.Dace da shigarwa a karkashin kasa ko a cikin ducts.