Vim li cas thiaj yuav tsum muaj lub tshuab tiv thaiv hluav taws xob (surge protector) rau hauv lub thawv faib khoom?

Lub luag haujlwm ntawm lubcov cuab yeej tiv thaiv kev kub ntxhov(SPD) nyob rau hauv lub thawv faib khoom:
Muaj ib lub cuab yeej tiv thaiv hluav taws xob ntau dhau uas tau teeb tsa tom qab lub cuab yeej hluav taws xob nkag mus rau hauv lub thawv faib hluav taws xob, thiab nws lub luag haujlwm tseem ceeb yog kev tiv thaiv xob laim. Nws lub npe tag nrho yog: tus tiv thaiv hluav taws xob ntau dhau.
Lub cuab yeej tiv thaiv overvoltage no yog los tiv thaiv kev puas tsuaj ntawm xob laim, thiab nws tseem yog qhov tsim nyog yuav tsum xav txog qhov resonant overvoltage hauv kab faib hluav taws xob qis. Nws yog ib qho cuab yeej tiv thaiv tseem ceeb hauv lub zog hluav taws xob qis.
Huab cua daj cua dub tiv thaiv lub thawv faib khoom los ntawm kev tawm tsam ntawm xob laim, thiab qhov hluav taws xob siab, thiab cov hluav taws xob loj sai sai nchuav rau hauv av los ntawm cov xov hlau tiv thaiv xob laim. Lub cuab yeej tiv thaiv hluav taws xob yog tus saib xyuas peb txoj haujlwm kev nyab xeeb txhua hnub.
Cov tiv thaiv kev poob siab yog tsim rau ntau qhov chaw:
Feem ntau ntsia rau hauv cov thawv faib khoom, chaw khoos phis tawj, chav sib txuas lus, chav tswj lub elevator, chav TV cable, tsev chav tswj tsis siv neeg, chaw tua hluav taws, chav tswj tsis siv neeg hauv kev lag luam, chav tswj cov khoom siv hloov pauv zaus, chav ua haujlwm hauv tsev kho mob, chav saib xyuas mob hnyav thiab cov thawv faib khoom uas muaj cov khoom siv kho mob hluav taws xob, thiab lwm yam. Tsis tas li ntawd, nws kuj tseem tuaj yeem ntsia tau rau hauv lub thawv faib teeb pom kev zoo tseem ceeb ntawm cov tsev nyob hauv qab rau pem teb.
Yuav ua li cas los nruab lub hwj chim tiv thaiv kev cuam tshuam hauv lub thawv faib khoom:
SPDmuaj peev xwm muab faib ua Chav Kawm A, Chav Kawm B, Chav Kawm C, thiab Chav Kawm D tiv thaiv xob laim, uas yog txiav txim siab raws li qhov hluav taws xob thiab lub peev xwm ntawm lub thawv faib khoom. 380V faib khoom siv Chav Kawm B tiv thaiv xob laim, 40KA ~ 60KA. 220V faib khoom siv Chav Kawm C tiv thaiv xob laim, 20KA ~ 40KA.
Vim li cas lub thawv faib khoom yuav tsum muaj lub tshuab tiv thaiv hluav taws xob?
Thaum lub sijhawm xob laim tso tawm, qhov hluav taws xob siab heev, tam sim no loj heev, thiab lub sijhawm tso tawm lub zog luv luv. Nws tsis txaus los cia siab rau kev tiv thaiv xob laim sab nraud (cov pas nrig xob laim, thiab lwm yam). Cov nthwv xob laim yuav ncaj qha lossis tsis ncaj qha nkag mus rau hauv cov kab hluav taws xob, cov kab teeb liab, cov kab noj antenna, thiab cov kav hlau. Cov xob laim thiab overvoltage uas tshwm sim yuav ua rau muaj kev puas tsuaj loj rau cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, thiab cov kab ke hauv network.
Qhov kev puas tsuaj los ntawm xob laim yog ib qho ntawm cov kev puas tsuaj ntuj tsim loj tshaj plaws. Qhov hluav taws xob seem thiab xob laim induction tsim los ntawm xob laim tseem yuav cuam tshuam rau cov khoom siv hluav taws xob siv hauv tsev, ua rau luv luv hauv cov khoom siv hluav taws xob siv hauv tsev, ua rau muaj kev poob ncaj qha xws li kev kub hnyiab thiab kev tawg.