Lub hnab ntim dej tsis zoo rau kev ua si hauv dej, mus ncig sab nraum zoov, cov khoom siv dhia dej. Lub hnab yog ua los ntawm cov khoom siv tsis muaj dej tsis zoo, thiab kev kho dej tsis zoo yog ua tiav ntawm txoj kab xaws. Thaum lub sijhawm ua dej num thiab kev ua si sab nraum zoov, koj tuaj yeem muab koj cov khoom tso rau hauv lub hnab ntim dej kom cov khoom qhuav. Lub hnab me me hauv tsev kawm ntawv nug. Lub cev ntawm lub hnab yog ua los ntawm cov khoom tsis muaj dej, thiab lub qhov ncauj ntawm lub hnab yog mechanically kaw. Lub hnab ntim dej tiag tiag yog tus cwj pwm los ntawm nws cov khoom siv thev naus laus zis thiab cov dej tsis zoo. IP qib xeem yog cov ntawv luv ntawm Ingress Protection. IP qib yog qib kev tiv thaiv ntawm cov khoom siv hluav taws xob tiv thaiv kev nkag mus ntawm cov khoom txawv teb chaws. Lub hauv paus yog tus qauv IEC 60529 ntawm International Electrotechnical Commission, uas kuj tau txais raws li American National Standard nyob rau hauv 2004. IP ntsuam xyuas yog los xyuas kom meej cov plua plav thiab waterproof kev ua tau zoo ntawm cov khoom. Txoj kev sawv cev ntawm IP kev ntsuas dej tsis zoo yog sawv cev los ntawm tsab ntawv IP ua raws li ob tus lej, thiab cov ntawv yuav raug ntxiv tom qab hauv ib tus neeg mob (ntxiv cov ntawv feem ntau txhais tau tias cov khoom uas tuaj yeem tiv taus siab thiab ntws siab). Nws muaj ntau yam kev siv, xws li peb cov khoom siv hluav taws xob tsis zoo siv hluav taws xob tsuas yog ib feem ntawm nws. Cov plua plav pov thawj thiab dej tsis zoo yog sawv cev los ntawm tus lej los qhia nws qib kev tiv thaiv. Feem ntau, tus lej loj dua, qhov muaj peev xwm tiv thaiv muaj zog dua. IP yog tus lej thoob ntiaj teb siv los txheeb xyuas qib kev tiv thaiv. Qib IP yog tsim los ntawm ob tus lej, ib tus lej txhais tau tias tsis muaj plua plav; tus naj npawb thib ob txhais tau hais tias tsis muaj dej, qhov loj dua tus lej, qhov kev tiv thaiv zoo dua.
Dustproof qib
0 Tsis muaj kev tiv thaiv tag Tsis muaj kev tiv thaiv txhua
1 Tiv thaiv kev nkag mus ntawm cov khoom loj dua 50mm
2 Tiv thaiv kev nkag mus ntawm cov khoom loj dua 12mm Qhov no yog qib los tiv thaiv kev nkag ntawm cov ntiv tes
3 Tiv thaiv kev nkag ntawm cov khoom loj dua 2.5mm Plua plav tsis tuaj yeem tiv thaiv cov plua plav nkag
4 Tiv thaiv kev nkag ntawm cov khoom loj dua 1.0mm
5 Dustproof tsis tuaj yeem tiv thaiv kev nkag mus ntawm cov plua plav
6 Dustproof kiag li tiv thaiv plua plav nkag
Qib waterproof
0 Tsis muaj kev tiv thaiv Tsis muaj kev tiv thaiv tshwj xeeb
1 Tiv thaiv kom tsis txhob muaj dej ntws los tiv thaiv kev poob ntsug
2 Tiv thaiv cov dej ntws thaum qaij 15 degrees los ntawm qhov chaw ib txwm muaj
3 Thaum qaij los ntawm qhov chaw ib txwm mus rau 60 degrees Thaum lub kaum sab xis tig, tiv thaiv los nag thiab dej txau
4 tiv thaiv dej txaws ntawm txhua lub kaum sab xis
5 Tiv thaiv dej los ntawm kev txau ntawm 6.3 hli nozzle ntawm 12.5L / min thiab 30kPa rau peb feeb ntawm qhov deb ntawm peb meters
6 Tiv thaiv dej los ntawm kev txau ntawm 12.5mm nozzle ntawm 100l / min thiab 100kPa rau peb feeb ntawm qhov deb ntawm peb meters Txau ntawm 75l / min, 1000kPa siab rau 3 feeb ntawm qhov deb ntawm 3 meters dej)
7 Kev tiv thaiv immersion hauv dej rau 1 meter ntawm atmospheric siab rau 30 feeb
8 Kev tiv thaiv submersion intrusion (tiv thaiv immersion nyob rau hauv dej ib meter los yog ntau tshaj nyob rau hauv cov chaw tsim tshuaj paus cov ncauj lus kom ntxaws specifications)
9K los tiv thaiv dej siab 80-100bar lossis dej kub 80 degrees Celsius
