Armored cable yog ib txheej ntawm steel daim kab xev los yog hlau hlau uas tuaj yeem khoov rau hauv lub tsho sab nraud ntawm lub cable. Armor muab faib ua steel daim kab xev armor, nyias steel hlau armor, tuab steel hlau armor, non-magnetic stainless hlau daim kab xev armor, thiab lwm yam Armor muab faib ua steel daim kab xev armor (22, 23), zoo steel hlau armor (32, 33). ), tuab steel hlau armor (42,43). Ob tus lej Arabic hauv tus qauv, thawj: "3" qhia zoo steel hlau armor; Qhov thib ob: "2" qhia PVC sheath, "3" qhia polyethylene sheath.
Shielded cable yog hais txog lub cable uas tuaj yeem tiv thaiv kev cuam tshuam sib nqus thiab lwm yam kev tiv thaiv thiab kev sib kis, thiab siv cov hlua mesh braided los qhwv lub teeb liab hlau. Feem ntau sawv cev los ntawm tsab ntawv "P". Ib qho yooj yim shielded hlau yog tsim los ntawm rwb thaiv tsev txheej + shielding txheej + hlau; advanced shielded hlau yog tsim los ntawm rwb thaiv tsev txheej + shielding txheej + teeb liab hlau + shielding txheej grounding hlau.
Qhov sib txawv ntawm armored cables thiab shielded cables yog raws li nram no:
1. Cov haujlwm sib txawv
Lub armored cable mechanical tiv thaiv txheej tuaj yeem muab ntxiv rau txhua tus qauv ntawm cov kab hluav taws xob txhawm rau txhawm rau txhim kho lub zog ntawm cov khoom siv hluav taws xob, txhim kho lub peev xwm tiv thaiv kev yaig, ceev faj ntawm nas thiab kab tsuag tom, thiab yuav tsis ua rau muaj teeb meem kev xa hluav taws xob los ntawm cov cuab yeej cuab tam. Hlau thiab cable tsim los rau qhov chaw puas thiab tawg heev. Kev tiv thaiv kev tshuaj ntsuam yog los xyuas kom meej qhov kev sib kis ntawm qhov system nyob rau hauv ib puag ncig ntawm electromagnetic cuam tshuam. Kev tiv thaiv kev cuam tshuam ntawm no yuav tsum suav nrog ob yam, uas yog, muaj peev xwm tiv thaiv sab nraud electromagnetic cuam tshuam thiab lub peev xwm ntawm lub cev nws tus kheej kom tawg electromagnetic cuam tshuam. Lub luag haujlwm ua los ntawm ob leeg sib txawv thiab tsis tuaj yeem hloov pauv.
2. Kev faib tawm txawv
Armored cables yog siv rau cov cables ncaj qha faus thiab koom rau cov fais fab cables. Shielded cables yog tswj cables, tsis yog fais fab cables.
3. Sib txawv dabtsi yog khoov vojvoog
Lub cable tso cai rau me me dabtsi yog khoov vojvoog: cov hlau daim kab xev qhwv cov ntaub thaiv npog los yog steel hlau, steel daim kab xev armored cable tsis tsawg tshaj li 12 lub sij hawm ntawm sab nraud txoj kab uas hla ntawm lub cable, thiab cov tsis armored saj zawg zog cable los yog braided shielded cable tsis tsawg. tshaj 6 npaug ntawm txoj kab uas hla sab nraud.
4. Kev sib txawv ntawm daim ntawv thov
Armored cables feem ntau yog siv nyob rau hauv ib puag ncig uas yooj yim puas los ntawm muaj zog mechanical sab nraud quab yuam thiab ib puag ncig los ntawm corrosive gases, tshwj xeeb tshaj yog nyob rau hauv roob roob thiab pob zeb. Shielding yog los xyuas kom meej qhov kis tau tus mob ntawm lub system nyob rau hauv ib puag ncig ntawm electromagnetic cuam tshuam. Kev tiv thaiv kev cuam tshuam ntawm no yuav tsum suav nrog ob yam, uas yog, muaj peev xwm tiv thaiv sab nraud electromagnetic cuam tshuam thiab lub peev xwm ntawm lub cev nws tus kheej kom tawg electromagnetic cuam tshuam.
Shielded cables feem ntau yog siv los tswj thiab tsis muaj zog tam sim no systems los tiv thaiv sab nraud electromagnetic cuam tshuam los ntawm kev cuam tshuam rau kev ua haujlwm ntawm kev tswj hwm thiab cov tshuab tsis muaj zog tam sim no. Haum rau transformers thiab cov cuab yeej zoo sib xws.
5. Txoj kev sib txawv hauv av
Lub hauv paus tseem ceeb ntawm cov shielded cable yuav tsum tau zoo grounded. "Lub armor ntawm armored cable yog hlau thiab yuav tsum tau grounded.
