O le lelei o le fa'aogaina o le afi YE3(IE3) e o'o atu i le tulaga 2 o le lelei o le fa'aogaina o le malosi i le GB18613-2012 Energy Efficiency Limit Value ma le Vasega mo Moli Eletise Fa'aosofiaga e Tolu Vaega Laiti ma Feololo. E ausia e afi le tulaga fa'atonuina o le IE3 o le IEC60034-30 ma e tutusa le tulaga lelei o le fa'aogaina ma afi eletise Amerika NEMA Premium.
O lenei faasologa o afi e sefe ai le malosi e mo le faʻaaogaina lautele o afi faʻainduction e tolu vaega ma le saoasaoa e tasi, e matua tapuni atoa le ili ma e faʻaauau pea ona galue. E talafeagai nei afi mo tulaga e leai ni manaʻoga faʻapitoa. E mafai ona latou faʻagaoioia ituaiga uma o masini faʻainisinia lautele ma faʻaaogaina lautele i masini masini, ili e puʻeina, compressor, transporter, conveyor, mixer, masini lomitusi, masini faʻatoʻaga ma masini afifi.
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