Fiber optic cables lawv tus kheej tsis yog hluav taws xob. Fiber optics xa cov teeb liab kho qhov muag, tsis yog hluav taws xob teeb liab; lawv cov ntaub ntawv tseem ceeb yog iav los yog yas fibers, uas tsis yog conductive. Technically, fiber optics kis lub teeb pulses los ntawm tag nrho cov sab hauv xav txog, kiag li ywj siab ntawm tam sim no. Txawm li cas los xij, hauv kev siv tswv yim, cov hauv qab no yuav tsum tau sau tseg:
1. Yog hais tias lub fiber optic sheath muaj cov hlau reinforcement (xws li armored fiber), kev sib cuag nrog cov khoom nyob yuav ua rau cov hlau qhov chaw ua hluav taws xob;
2. Lub circuitry ntawm qhov chaw nres nkoj sib txuas ntawm lub photoelectric converter yuav dhau los ua hluav taws xob, tab sis qhov fiber ntau optic yuav tuav nws cov khoom rwb thaiv tsev.
Raws li tus txheej txheem thoob ntiaj teb IEC 60793-1, rwb thaiv tsev tsis kam ntawm kev sib txuas lus kho qhov muag fibers yuav tsum siab dua lossis sib npaug li 1000 MΩ·km. Hauv kev siv engineering, cov khoom thaiv hluav taws xob ntawm fiber ntau optics ua rau lawv tshwj xeeb tshaj yog haum rau siab -voltage ib puag ncig (xws li kev saib xyuas substation) thiab cov xwm txheej tawg; Txawm li cas los xij, thaum lub sij hawm tsim kho, kev sib txuas nrog cov kab hluav taws xob yuav tsum tau zam kom tsis txhob muaj kev puas tsuaj rau cov khoom siv hluav taws xob uas tuaj yeem ua rau hluav taws xob tsis zoo ntawm cov khoom siv hlau.
