Dab tsi yog lub hom phiaj ntawm kev tso cov qhov uas pcb pcb?
Firstly, nkag siab cov ntsiab lus paub hu ua "kev sib cav sib ceg", uas yog hais txog qhov kev sib txuas lus luv luv ntawm ob qho kev ua haujlwm thiab cov khoom siv tiv thaiv kev ntsuas ntawm cov chaw rwb thaiv tsev, luv luv li kev ncua deb. Crawling nyob deb=qhov deb / system seem voltage.
Thaum muaj siab - voltage thiab tsawg {- voltage ntawm peb pcb, peb yuav tsum tau cais ob ntu no. Muaj ob peb ntsiab lus tseem ceeb:
1. Copper paving yog txwv nyob rau hauv high- voltage chaw.
2. Qhov qis {{{- voltage feem ntawm lub siab- voltage lub thawv yuav tsum muaj ib tug ciam teb kab.
3. Yuav tsum muaj qhov tsawg kawg nkaus creepage deb ntawm cov siab thiab qhov hluav taws xob tsawg. Hauv peb tus qauv, muaj qee qhov chaw uas tsis tuaj yeem ua raws li cov kev yuav tsum tau ua tiav, yog li siv cov slots yog qhov yooj yim txoj kev los kho cov ceg lav deb ntawm qhov kev ncua deb ntawm qhov siab thiab qis voltage. Yog tias qhov chaw tso cai, qhov kev ncua deb tuaj yeem nce me ntsis, thiab qhov dav ntawm lub qhov feem ntau yog ntau dua 1 hli.
Nco ntsoov qhov sib txawv: cov ntsiab lus ntawm cov txheej txheem sib nrug thiab ntsuas hluav taws xob
Qhov kev ntsuas luv tshaj plaws ntawm ob qho kev ntsuas sib txawv lossis nruab nrab ntawm cov khoom siv ua haujlwm thiab cov khoom tiv thaiv ntawm cov khoom siv.