Steel structural kev txhawb nqa rau substations yog feem ntau cais raws li peb qhov ntev: kev teeb tsa, hom khoom, thiab lub hom phiaj ua haujlwm. Cov pawg tseem ceeb muaj xws li portal/pi-zoo li tus (π- zoo li) thav duab, steel yeeb nkab lossis kab lattice kab thiab kab teeb, thiab cov cuab yeej tshwj xeeb txhawb nqa.
Portal thav duab: Ua los ntawm ob kab ntsug thiab ib qho crossbeam, tsim "portal" (los yog "gate") zoo li; haum rau ib qho - txheej txheej khoom layouts thiab feem ntau siv rau cov qauv voltage theem thiab qhib qhov chaw.
Pi-puab (π- zoo li tus) thav duab: Feature ib qho peb- qhov qauv zoo ib yam li Greek tsab ntawv "π," uas yog tsim los ntawm kev sib txuas cov kab saum toj kawg nkaus nrog ntau lub hlaws lossis kab pheeb ces kaum; haum rau ntau- txheej txheej txheej txheej txheej los yog thaj chaw uas muaj cov kab nkag thiab tawm, muab qhov chaw siab siv.
Cov kev hloov tshwj xeeb: suav nrog ntau- ncua lub portal thav duab (nruam txuas ntxiv), kaum lub portal thav duab (rau kab rov qab), thiab A- cov qauv ncej (ib kem nrog ob kab pheeb ces kaum).