Muaj cov nram qab no sib txawv ntawm shielded thiab unshielded cables nyob rau hauv network cables:
Cov qauv sib txawv
1.Shielded cable:
Nws yog ib tug kis tau tus mob cable uas siv ib tug hlau mesh braid los qhwv lub teeb liab kab. Lub braid feem ntau yog tooj liab lossis tinned tooj liab. Lub shielding txheej ntawm cov shielded cable yog tsuas yog tsim los ntawm cov khoom tsis sib nqus xws li tooj liab thiab txhuas. Lub thickness yog nyias nyias, uas yog ntau me dua li ntawm daim tawv nqaij qhov tob ntawm cov ntaub ntawv hlau ntawm kev khiav hauj lwm zaus. Kev ua haujlwm ntawm cov txheej txheem shielding feem ntau yog tshwm sim los ntawm grounding ntawm lub shielding txheej. Cov ntawv sib txawv yuav cuam tshuam ncaj qha rau cov nyhuv thaiv.
2. Unshielded cable:
8 xov hlau ntawm cov xim sib txawv muab faib ua 4 khub thiab sib tw ua ke. Lub luag haujlwm ntawm kev sib tw hauv cov khub yog kom txo qis kev cuam tshuam ntawm hluav taws xob hluav taws xob hluav taws xob thiab kev cuam tshuam sab nraud electromagnetic. Unshielded twisted khub cables tsis muaj hlau thaiv cov khoom thiab tsuas yog qhwv los ntawm ib txheej ntawm insulating roj hmab.
Txoj kev sib txuas sib txawv
1.Shielded cable:
Cov xaim qhwv nrog ib txheej ntawm cov xaim sab nraud ntawm tus neeg xyuas pib yog hu ua shielded cable. Cov qhwv qhwv yog hu ua ib txheej thaiv, uas feem ntau yog braided tooj liab mesh lossis tooj liab (aluminium). Lub shielding txheej yuav tsum tau grounded, thiab sab nraud cuam tshuam cov teeb liab tuaj yeem nkag mus rau hauv av los ntawm txheej txheej no.
2. Unshielded hlau:
Tsuas yog ib txheej ntawm cov roj hmab insulating yog qhwv, txuas ncaj qha rau lub cev, tsis tas yuav xav txog cov teeb meem hauv av, kev sib txuas yooj yim, thiab kev teeb tsa yooj yim dua.
Qhov sib txawv ntawm cov ntaub ntawv kis tau tus mob zoo
1.Shielded hlau:
Vim tias muaj cov txheej txheem tiv thaiv, thaum grounded, nws tuaj yeem tsis tsuas yog xyuas kom meej tias cov ntaub ntawv xa tawm tsis tau xau, tab sis kuj yuav tsis cuam tshuam los ntawm cov khoom siv hluav taws xob sab nraud, thiab tuaj yeem ua kom ntseeg tau qhov tseeb ntawm cov ntaub ntawv xa tawm.
2. Unshielded cable:
Nws yooj yim cuam tshuam los ntawm cov hluav taws xob hluav taws xob sab nraud muaj zog, thiab cov ntaub ntawv sib kis tau zoo tsis zoo li cov ntaub thaiv kab thaiv.
