Xob Tiv Thaiv Kev Tiv Thaiv (LPZ)
Hauv kev ntsuas IEC, cov ntsiab lus xws li hom 1 / 2 / 3 lossis hoob 1 / 2 / 3 ntuas tiv thaiv ntaus ntawv yog nrov heev. Nyob rau hauv tsab xov xwm no, peb tab tom yuav ua kom paub lub tswv yim uas yog qhov sib thooj nrog rau cov ntsiab lus dhau los: xob tiv thaiv tsam los yog LPZ.
Txoj kev tiv thaiv kab hluav taws xob zoo li cas thiab yog vim li cas nws tseem ceeb?
Lub tswv yim tiv thaiv xob laim hluav taws xob yog lub hauv paus thiab piav qhia hauv IEC 62305-4 tus qauv uas yog tus tseev tsim ntiaj teb kev tiv thaiv xob laim thaiv. Lub tswvyim LPZ yog ua raws li lub tswv yim ntawm maj mam txo xob laim zog rau theem nyab xeeb kom nws thiaj li tsis ua rau lub davhlau ya nyob twg.
Cia peb pom ib qho piv txwv.
Li ntawd, qhov txawv txawv tiv thaiv tsam txhais li cas?
LPZ 0A: Nws yog thaj chaw tsis muaj kev tiv thaiv sab nraum lub tsev thiab nws raug qhov hluav taws xob tsis ncaj. Hauv LPZ 0A, tsis muaj kev tiv thaiv tiv thaiv electromagnetic cuam tshuam pulses LEMP (Xob Laim Electromagnetic Pulse).
LPZ 0B: zoo li LPZ 0A, nws tseem nyob sab nraum lub tsev tsis tau LPZ 0B raug tiv thaiv los ntawm cov hluav taws xob sab nraud tiv thaiv, feem ntau hauv thaj chaw tiv thaiv ntawm cov laim qws. Ntxiv dua thiab, tsis muaj kev tiv thaiv tawm tsam LemP thiab.
LPZ 1: Nws yog qhov chaw hauv tsev. Nyob rau cheeb tsam no, nws tseem muaj peev xwm muaj ib feem xob hluav taws xob tam sim no tshwm sim. Tab sis lub teeb tam sim no muaj tsawg kawg li tsawg kawg yog ib nrab ntawm nws yog ua mus rau hauv av los ntawm sab nrauv hluav taws xob tiv thaiv system. Ntawm LPZ0B thiab LPZ1, yuav tsum muaj Chav Kawm 1 / Hom 1 SPD ntsia los tiv thaiv cov cuab yeej nqes.
LPZ2: Nws tseem yog thaj tsam hauv thaj chaw hauv lub tsev uas tsis tshua muaj kev tshee hnyo. Ntawm LPZ2 thiab LPZ1, yuav tsum muaj Chav Kawm 2 / Type2 Surge tiv thaiv ntaus ntawv.
LPZ3: Zoo li LPZ1 & 2, LPZ3 kuj tseem yog cheeb tsam sab hauv lub tsev uas tsis muaj hluav taws xob tsawg lossis maj nrawm.