IEC 61643-31-2018 Manaʻoga ma suʻega metotia mo photovoltaic
IEC 61643-31: O le 2018 e faʻatatau i le Surge Protective Devices (SPDs), na fuafuaina mo le saoasaoa o puipuiga mai le tuusao ma faʻatonuga o aafiaga o le uila poʻo isi taimi le tumau. O nei masini ua mamanuina ina ia faʻafesoʻotaʻi i le itu DC o mea faʻapipiʻi photovoltaic faʻamauina i le 1 500 V DC. O nei masini o lo'o i ai a itiiti ifo ma le tasi le vaega e le laina laina ma e fa'amoemoe e fa'atapula'aina le si'isi'i voltage ma fa'afefe ai le galu. Faʻatinoga galuega, manaʻoga saogalemu, masani metotia mo suʻega ma faʻailoga ua faʻamautuina. SPD o loʻo tausisia lenei tulaga faʻapitoa e faʻapipiʻiina i le itu DC o afi afi afi ma le itu DC o faʻaliliu. SPDs mo PV system ma le malosi e teu ai (fa'ata'ita'iga o maa, capacitor banks) e le o ufiufiina. SPDs ma isi tuʻufaʻatasiga ma galuega faʻatumu terminals o loʻo i ai faʻapitoa faʻasologa impedance i le va o nei tigaina (s) (e taʻua o lua-port SPDs tusa ai ma le IEC 61643-11: 2011) e le o ufiufi. SPD o lo'o tausisia lenei tulaga ua mamanuina ina ia feso'ota'i tumau pe a na'o se mea faigaluega e mafai ona faia ai le feso'ota'iga ma le motusia o SPD mautu. O lenei tulaga e le faʻaogaina i SPD feaveaʻi.
