Cov cim kev nyab xeeb ntawm cov hluav taws xob dej fais fab feem ntau yog tus IP ntsuas cim. Tus IP kev ntsuam xyuas yog tsim ntawm ob tus lej, tus thawj tus lej qhia tau tias theem plua plav, thiab tus lej thib ob qhia tias muaj dej tsis muaj dej. Qib siab tshaj plaws ntawm kev tiv thaiv dej yog 8, raws li hauv qab no:
IP67: Qhia tau tias lub cuab yeej tuaj yeem tiv thaiv kev nkag los ntawm cov khoom txawv teb chaws thiab cov hmoov av, thiab tuaj yeem tiv thaiv cov dej tsis ntev.
Ib qho ntxiv, lub zog hluav taws xob kev nyab xeeb cov cim tseem suav nrog qee cov cim hluav taws xob uas muaj qee cov hluav taws xob thiab cov cim, xws li:
A: ampererating, qhia txog chav ntsuas ntawm tam sim no.
Hz: Hertz, qhia qhov ntsuas ntawm zaus.
V: volt, qhia txog chav ntsuas ntawm voltage.
W: Watt, qhia txog lub zog ntawm lub zog.
AC: Hloov cov hwj chim tam sim no.
DC: Ncaj ncees tam sim no lub zog.
PE: Av xaim, qhia txog av hlau.
L: Nyob hlau (feem ntau liab).
N: nruab nrab hlau (feem ntau xiav).
Tsis yog: nquag qhib.
NC: Nquag kaw.
QS: cais hloov chaw.
QF: Circuit Court breaker.
Fu: Fuse.
Fr: thermal ntau dhau relay.
Cov cim thiab cov cim kos lub luag haujlwm tseem ceeb hauv kev tsim hluav taws xob thiab kev nyab xeeb kev nyab xeeb, ua kom muaj cov khoom siv hluav taws xob thiab kev tiv thaiv hluav taws xob.
