Fuafuaga ma le Fono Fa'atonu a le PCB maualuga: Mea Autu
Laupapa ta'avale lolomi maualuga(PCBs) o vaega taua ia i le tele o talosaga, e aofia ai fesoʻotaʻiga, radar system, fesoʻotaʻiga uaealesi, ma le televave o faʻamaumauga o faʻamaumauga. O le faʻatinoga o nei PCB e matuaʻi aʻafia i mea e filifilia mo latou mamanu ma faʻapotopotoga. O lenei tusiga o loʻo suʻesuʻeina mea muamua na faʻaaogaina i totonu mamanu PCB maualuga ma le faapotopotoga, faʻamamafa o latou uiga ma mea lelei.
- Mea Faavae: O mea faʻavae e fausia ai le faavae o se PCB maualuga-telefoni ma taʻalo se sao taua i le fuafuaina o ana mea eletise. O nisi o mea autu autu o loʻo faʻaaogaina i PCB maualuga e aofia ai:
- FR-4: O se mea fa'atauva'a ma fa'aaogaina lautele epoxy resin fiberglass composite, FR-4 maua ai masini lelei mamautu vevela.Ae peitai, o lonadielectric tumau(Dk) mafa'aleaga mea(Df) atonu e le sili ona lelei mo faʻaoga maualuga-vave.
- Rogers Mea: Rogers e taʻutaʻua mo ana mea faʻapipiʻi eletise maualuga, pei ole RT/Duroid. O mea nei o lo'o fa'aalia ai le maualuga o le dielectric tumau (Dk) ma le fa'a'ese'esega (Df), fa'apena ona fetaui lelei mo talosaga PCB maualuga.
- Mea Taconic: Taconic o loʻo tuʻuina atu ai le tele o mea faʻapipiʻi eletise maualuga, e pei o le PEEK (Polyether Ether Ketone) ma le polyimide, e ofoina atu le faʻamautuina lelei o le vevela ma le maualalo o le Df, e faʻaogaina lelei mo taʻaloga maualuga.
- Mea Fa'atonu: O le filifilia o mea faʻaulu e taua tele ile mamanu PCB maualuga aʻo latou fuafuaina le amio a le matagaluega, teteʻe, ma le faʻamaonia o le amio saʻo. O nisi e masani ona faʻaaogaina mea faʻatautaia i PCB maualuga e aofia ai:
- Kopa: O le kopa o le mea e sili ona faʻaaogaina faʻatautaia ona o lona faʻaogaina faʻapitoa matau-lelei. Peita'i, e fa'atupula'ia lona tete'e i taimi, o lea e mafai ai ona fa'aogaina fa'alava apamemea manifinifi i fa'aoga maualuga.
- Auro: O le auro e lauiloa ona o lona amio mataʻina ma le maualalo o le tetee, e fetaui lelei mo PCBs maualuga. E maua ai foi le leleitetee a'ama le tumau. Ae ui i lea, o le auro e sili atu le taugata nai lo le kopa, faʻatapulaʻaina lona faʻaaogaina i tau fa'aogaina.
- Alumini: Alumini o se filifiliga e le masani ai mo PCBs maualuga ae e mafai ona faʻaaogaina i faʻamatalaga faʻapitoa lea o le mamafa ma le tau o popolega muamua. O lona conductivity e maualalo ifo nai lo apamemea ma auro, lea e ono manaʻomia ai ni iloiloga faaopoopo i le mamanu.
- Mea Fa'aeletise: E mana'omia mea fa'a-dielectric mo le fa'a'ese'esega o fa'ailoga o lo'o i luga ole PCB ma e taua tele i le fa'amautuina o mea tau eletise ole PCB. O nisi o mea pito i luga dielectric o loʻo faʻaaogaina i PCB maualuga e aofia ai:
- Ea: O le ea o le mea sili ona taatele o le dielectric ma e tuʻuina atu ai le eletise sili ona lelei i laina maualuga. Ae ui i lea, e faʻatapulaʻaina lona mautu vevela, ma atonu e le fetaui mo faʻaoga maualuga-vevela.
- Polyimide: Polyimide o le amea dielectric maualuga-faatinogata'uta'ua mo lona tulaga mautu fa'avevela ma tau maualalo Df. E masani ona faʻaaogaina i PCBs maualuga e manaʻomia ona faʻasaga i le vevela maualuga.
- Epoxy: Epoxy-based dielectric mea e ofoina atu lelei masini ma vevela mautu. E masani ona fa'afaigaluegaina i mea fa'avae FR-4 ma maua ai le fa'atinoga lelei o le eletise e o'o atu i se taimi fa'apitoa.
O le filifilia o meafaitino mo le faʻatulagaina o le PCB maualuga ma le faʻapotopotoga e taua tele mo le ausiaina o faʻatinoga sili ona lelei. O mea faʻavae, mea faʻaulu, ma mea dielectric e faia uma lava se sao taua i le fuafuaina o mea eletise a le PCB, faʻamaonia le saʻo, ma le faʻamaoni. E tatau i tagata mamanu ona filifili ma le toto'a nei mea e fa'atatau i mana'oga fa'apitoa e fa'amautinoa ai le fa'atinoga lelei ma le fa'atinoga. Aʻo faʻaauau pea ona faʻaauau le tekonolosi, o mea fou ma faʻaleleia i mea o loʻo i ai nei o le a faʻaauau pea ona tulaʻi mai, ma faʻateleina ai le gafatia o PCBs maualuga.