Lub ntsiab muaj nuj nqi ntawm tus neeg tiv thaiv kev tiv thaiv (SPD) yog los tiv thaiv cov khoom hluav taws xob los ntawm kev hloov pauv hluav taws xob (surges) tshwm sim los ntawm xob laim lossis phiaj xwm. Cov hauv qab no yog cov lus qhia ntxaws ntxaws ntawm lub luag haujlwm ntawm ib qho kev tiv thaiv kev tiv thaiv:
Liming Transient transient overvoltage: Kev tiv thaiv kev tiv thaiv muaj cov tsis muaj tshuaj tiv thaiv xws li hlau oxide ntes (tso roj) thiab cov roj tawm roj (gdts). Cov khoom siv no tuaj yeem tig sai sai thiab txo lawv cov kev cuam tshuam thaum cov hluav taws xob ntau tshaj qhov muaj qee yam kev hloov pauv ntawm cov kev hloov pauv hloov mus rau theem qis dua. Qhov no pab tiv thaiv cov khoom siv hluav taws xob los ntawm kev puas tsuaj los ntawm overvoltage.
Kev Tawm Tsam Tawm Tsam Tam Sim No: Thaum kev tawm hauv lub Hwj Chim hauv Daim Phiaj Ci, tus neeg tiv thaiv tus neeg tiv thaiv kev tiv thaiv tuaj yeem hloov mus rau hauv av tam sim no rau hauv av. Qhov no yuav pab txo cov nqi tsub kom haum rau cov khoom siv hluav taws xob thiab tiv thaiv cov khoom siv puas tsuaj lossis tsis ua haujlwm los ntawm kev them nqi.
Tiv thaiv cov khoom siv los ntawm xob laim puas tsuaj: hauv cov huab cua thunderning, cov kev hloov pauv hloov pauv los ntawm cov cuab yeej hluav taws xob hauv ib lub tsev los ntawm kab fais fab kab. Surge tiv thaiv tuaj yeem cuam tshuam cov kev tiv thaiv no thiab coj lawv mus rau hauv av, yog li tiv thaiv cov khoom siv los ntawm xob laim puas.
Txhim kho cov cuab yeej kev ntseeg tau thiab cov kev pabcuam lub neej: Qhov kev tiv thaiv kab mob tuaj yeem txo cov khoom hluav taws xob puas tsuaj los ntawm kev ntseeg tau thiab kev pabcuam lub neej ntawm cov khoom siv. Qhov no tuaj yeem txuag cov nqi kho thiab hloov cov nqi rau cov chaw xws li tsev, lag luam, thiab cov chaw ua haujlwm. Ua raws li kev nyab xeeb cov qauv thiab cov ntsiab lus thiab cov cheeb tsam tau tsim tsa cov qauv hluav taws xob thiab cov khoom siv hluav taws xob, xav tau cov khoom siv hluav taws xob kom ntseeg tau tias kev nyab xeeb ntawm cov cuab yeej thiab tshuab. Kev siv cov kws tiv thaiv cov neeg tiv thaiv kev pab ua kom tau raws li cov kev cai ntawm cov qauv no thiab kev phom sij kev nyab xeeb los ntawm cov khoom puas tsuaj. Surge tiv thaiv yog qhov tsis tseem ceeb tiv thaiv cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob. Lawv tuaj yeem txwv cov kev cuam tshuam pauv hloov pauv, tiv thaiv cov khoom siv los ntawm kev puas tsuaj los ntawm kev puas tsuaj thiab kev pabcuam lub neej. Thaum xaiv thiab siv cov kws tiv thaiv ncaj, lawv yuav tsum raug txiav txim siab thiab xaiv raws li cov kev xav tau tshwj xeeb thiab cov xwm txheej.
