Yog vim li cas siv txhuas armor nyob rau hauv ib tug corearmoured cable yog kom tsis txhob tsim ntawm ferromagnetic kaw circuits nyob rau hauv lub cable sheath, li no txo induced tam sim no thiab lwm yam cua sov teeb meem.
Yog vim li cas steel armor tsis siv rau ib tug tub ntxhais armored cable?
Thaum anarmoured cable conductor hla tam sim no, magnetic teb kab yog generated nyob ib ncig ntawm nws, thiab tus naj npawb ntawm magnetic teb kab yog proportional rau qhov loj ntawm tam sim no dhau los ntawm tus neeg xyuas pib. Nyob rau hauv peb lub core bundled cable, thaum peb-theem tam sim no sib npaug, tsis muaj cov kab hlau nplaum dhau los ntawm cable sheath armor. Nyob rau hauv ib qho tseem ceeb armored cable, txawm tias peb-theem tam sim no sib npaug hauv lub cev, vim yog cov txheej txheem tiv thaiv ntawm peb cores, cov kab hlau nplaum sib nqus tau dhau los ntawm txhua txheej tiv thaiv. Tus naj npawb ntawm cov kab hlau nplaum hla dhau los ntawm txheej tiv thaiv yog proportional rau nws cov hlau nplaum permeability. Hlau sawb yog cov khoom siv ferromagnetic nrog siab sib nqus permeability, yog li cov kab hlau nplaum ntau dhau los ntawm nws ..
rau ib tug tub ntxhais cable nrog steel daim kab xev armor, Thaum ib tug tam sim no dhau los ntawm nws tus neeg xyuas pib, lub siab permeability steel daim kab xev hla los ntawm ntau magnetic teb kab. Raws li qhov tam sim no yog qhov hloov pauv tam sim no ntawm 50Hz, ib qho hluav taws xob yog induced nyob rau hauv nws, uas yog proportional rau qhov ceev ntawm lub magnetic teb kab hloov thiab proportional rau lub magnetic conductivity. Thaum cov hlau daim kab xev tsim ib lub voj kaw ntawm ob qho kawg ntawm kab kab, ib qho induced tam sim no yog generated nyob rau hauv nws, uas yog proportional rau lub load tam sim no thiab muaj nuj nqis. Vim yog qhov induced tam sim no generating cua sov, nws yog tsim nyog los txo qhov tam sim no nqa peev xwm ntawm lub cable thiaj li yuav xyuas kom meej tias nws muaj kev nyab xeeb kev khiav hauj lwm.
Txhawm rau zam qhov teeb meem no, txheej tiv thaiv ntawm ib qho tseem ceeb armored cable tsis siv steel daim kab xev armor, tab sis siv cov khoom uas tsis yog hlau nplaum aluminium armor, thiab tsis tsim ferromagnetic kaw Circuit Court nyob rau hauv cov txheej txheem tiv thaiv.
