IYunithi yeFayibha yokuSebenza eYomeleziweyo (EPFU) yisayizi encinci, ubunzima obulula, iyunithi yefiber ye-sheath yangaphandle ephuculweyo eyenzelwe ukuvuthela kwiibhandle ezincinci zetyhubhu ngokuhamba komoya. Uluhlu lwangaphandle lwe-thermoplastic lubonelela ngezinga eliphezulu lokukhusela kunye neempawu ezigqwesileyo zokufakela.
I-EPFU ibonelelwa ngeepani eziziikhilomitha ezi-2 njengesiqhelo, kodwa inokubonelelwa ngobude obufutshane okanye obude xa iceliwe. Ukongeza, iinguqu ezinamanani ahlukeneyo efiber zinokwenzeka. I-EPFU inikezelwa ngepani eyomeleleyo, ukuze ikwazi ukuhanjiswa ngaphandle komonakalo.
Uhlobo lweFayibha:ITU-T G.652.D/G.657A1/G.657A2, OM1/OM3/OM4 IiFayibha