Kev piav qhia txog cov khoom siv tiv thaiv hluav taws xob

Cov khoom siv tiv thaiv hluav taws xob ntau dhau (Surge protector) Cov khoom siv tiv thaiv hluav taws xob ntau dhau yog ib yam khoom siv tiv thaiv uas tsim los tiv thaiv cov khoom siv hluav taws xob kom tsis txhob raug puas tsuaj los ntawm kev nce hluav taws xob ntau dhau ib ntus. Nws ntes tau qhov nce hluav taws xob tsis zoo hauv lub cev thiab hloov cov zog ntau dhau mus rau cov xov hlau hauv av sai sai, yog li tiv thaiv kev puas tsuaj rau cov khoom siv rhiab heev los ntawm kev nce hluav taws xob ntau dhau.

Kev Ua Haujlwm ntawm Cov Khoom Siv Tiv Thaiv Surge

Cov cuab yeej tiv thaiv hluav taws xob surge ua haujlwm hauv lub xeev siab-impedance thaum lub sijhawm ib txwm muaj, ua kom ntseeg tau tias kev ua haujlwm ntawm lub voj voog tsis muaj kev cuam tshuam. Txawm li cas los xij, thaum muaj hluav taws xob surges transient tshwm sim - xws li cov uas tshwm sim los ntawm kev pib lub cev muaj zog, kev hloov pauv load, lossis xob laim-tus tiv thaiv hloov mus rau txoj kev qis-impedance tam sim ntawd, xa cov zog ntau dhau mus rau hauv av thiab tiv thaiv cov khoom siv rhiab heev ntawm kev puas tsuaj. Thaum qhov surge ploj mus, lub cuab yeej yuav rov pib dua rau nws lub xeev siab-impedance, rov pib dua nws qhov kev saib xyuas ntsiag to tiv thaiv kev cuam tshuam hluav taws xob.

Cov Xwm Txheej Tseem Ceeb ntawm Cov Khoom Siv Tiv Thaiv Surge

Kev tiv thaiv xob laim: tiv thaiv cov surges los ntawm kev ncaj qha los yog inductive xob laim.

Kev hloov pauv ntawm daim phiaj: tswj cov overvoltages uas tshwm sim los ntawm kev ua haujlwm ntawm grid switch, capacitor switching, thiab lwm yam.

Kev tiv thaiv cov khoom siv hluav taws xob: tiv thaiv cov cuab yeej precision xws li cov khoos phis tawj, cov khoom siv sib txuas lus, thiab cov khoom siv hauv tsev.

Cov txheej txheem kev lag luam: xyuas kom meej tias cov khoom siv tseem ceeb xws li PLCs, inverters, thiab sensors ua haujlwm ruaj khov.

Cov Qauv thiab Cov Cai ntawm Cov Khoom Siv Tiv Thaiv Surge

Kev Lag Luam Thoob Ntiaj Teb

IEC / EN 61643-11, IEC / EN 61643-21, IEC / EN 61643-31, IEC / EN 61643-41, IEC / EN 61643-21, IEC 61643-311, IEC 61643-3216, IEC 31643-3216 61643-341.

North America (Tebchaws Meskas, Canada thiab Mexico)

Tebchaws Meskas:

UL 1449, Tus Txheej Txheem rau Cov Khoom Siv Tiv Thaiv Surge (SPDs), tsab 5 tau muab tawm rau Lub Ib Hlis 8, 2021

UL 497B, Cov Tiv Thaiv rau Kev Sib Txuas Lus Cov Ntaub Ntawv thiab Cov Hluav Taws Kub-Tswb Circuits

Canada: CSA C22.2 NO. 269 Cov Qauv SPD

Mexico: NOM-003-SCFI (NMX-J-515-ANCE)

Kev Teeb tsa Cov Khoom Siv Tiv Thaiv Surge

• Yuav tsum txiav lub hwj chim ua ntej kev teeb tsa, thiab kev ua haujlwm nyob raug txwv tsis pub ua;
• Nws raug pom zoo kom txuas lub fuse lossis circuit breaker ua ke ntawm qhov kawg ntawm lub module;
• Thov txuas raws li daim duab teeb tsa thaum lub sijhawm teeb tsa, qhov twg DC + yog kab zoo, DC- yog kab tsis zoo, thiab PE yog kab hauv av. Tsis txhob txuas lawv tsis raug. Tom qab kev teeb tsa tiav lawm, kaw lub qhov hluav taws xob (fuse) thiab xyuas seb qhov xwm txheej ua haujlwm puas zoo li qub;
• Tom qab kev teeb tsa tiav lawm, muab lub module tso rau hauv qhov chaw kom raug thiab xyuas seb lub module puas ua haujlwm zoo;
• Thaum lub sijhawm siv lub module, yuav tsum tau kuaj xyuas thiab kuaj xyuas qhov xwm txheej ntawm lub qhov rais qhia txog qhov txhaum tsis tu ncua. Thaum lub qhov rais qhia txog qhov txhaum liab lossis lub chaw taws teeb liab tso tawm lub tswb ceeb toom, nws txhais tau tias lub module muaj qhov txhaum thiab yuav tsum tau kho lossis hloov pauv raws sijhawm;