Hauv kev tsim khoom lag luam, tshwj xeeb tshaj yog rau cov khoom siv hluav taws xob thiab hluav taws xob siv sab nraum zoov, kev tiv thaiv plua plav thiab dej yog qhov tseem ceeb heev. Lub peev xwm no feem ntau raug soj ntsuam los ntawm qib kev tiv thaiv ntawm cov cuab yeej siv tsis siv neeg thiab cov khoom siv, tseem hu ua IP code. IP code yog lub npe luv ntawm qib kev tiv thaiv thoob ntiaj teb, uas yog siv los ntsuas kev ua tau zoo ntawm cov khoom siv, feem ntau npog ob pawg ntawm kev tiv thaiv plua plav thiab dej. Nwstshuab kuajyog ib qho cuab yeej kuaj mob tseem ceeb thiab tseem ceeb hauv kev tshawb fawb thiab tshawb nrhiav cov ntaub ntawv tshiab, cov txheej txheem tshiab, cov thev naus laus zis tshiab thiab cov qauv tshiab. Nws ua lub luag haujlwm tseem ceeb hauv kev siv cov ntaub ntawv kom zoo, txhim kho cov txheej txheem, txhim kho cov khoom zoo, txo cov nqi, thiab ua kom cov khoom muaj kev nyab xeeb thiab kev ntseeg siab.
Qib IP tiv thaiv plua plav thiab dej yog tus qauv rau kev tiv thaiv lub plhaub ntawm lub cuab yeej uas tau tsim los ntawm International Electrotechnical Commission (IEC), feem ntau hu ua "IP level". Nws lub npe lus Askiv yog "Ingress Protection" lossis "International Protection". Nws muaj ob tus lej, tus lej thawj qhia txog qib tiv thaiv plua plav, thiab tus lej thib ob qhia txog qib tiv thaiv dej. Piv txwv li: qib tiv thaiv yog IP65, IP yog tsab ntawv cim, tus lej 6 yog tus lej cim thawj zaug, thiab 5 yog tus lej cim thib ob. Tus lej cim thawj qhia txog qib tiv thaiv plua plav, thiab tus lej cim thib ob qhia txog qib tiv thaiv dej.
Ntxiv rau, thaum qib kev tiv thaiv xav tau siab dua qib uas sawv cev los ntawm cov lej cim saum toj no, qhov kev nthuav dav yuav raug qhia los ntawm kev ntxiv cov ntawv ntxiv tom qab ob tus lej thawj zaug, thiab nws kuj tseem ceeb kom ua tau raws li qhov yuav tsum tau ua ntawm cov ntawv ntxiv no.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-11-2024