1. Cov txheej txheem khoom
(1) Raws li cov cai tswj hwm ntawm cov txheej txheem cuam tshuam (GB18802.1 thiab GB50057), lub hauv ntej kawg ntawm SPD Circuit yuav tsum txuas nrog ua ntu nrog cov khoom siv tiv thaiv tam sim no (xws li fuses thiab Circuit breakers). Thaum SPD ua tsis tiav lossis luv-circuited, cov fuses thiab cov tshuab hluav taws xob tsis tuaj yeem koom tes nrog SPD, ua rau muaj hluav taws sib tsoo thiab xob laim puas rau cov cuab yeej. Cov fuses thiab cov hluav taws xob hluav taws xob tam sim no siv ntau ntau nrog SPD tsis sib xws nrog peb lub ntsiab lus hauv qab no:
1. Ua yuam kev sib txuas thiab puas yooj yim thaum hluav taws xob tsoo-tiv thaiv xob laim tsis ua haujlwm;
2. Thaum SPD luv-circuited, lub zog siv hluav taws xob txuas ntxiv tam sim no tsis tawg-qhov ntsuas tawg tam sim no ntawm lub fuse thiab lub tshuab hluav taws xob tawg, yog tias SPD tsis ua lossis luv Circuit Court, yog tias nws tsis tuaj yeem muab 8 txog 10 npaug ntawm qhov ntsuas tam sim no ntawm lub fuse thiab lub tshuab hluav taws xob tam sim tam sim no (piv txwv li, C32 lub tshuab hluav taws xob xav tau muab 320A tam sim no tam sim no), SPD tuaj yeem tua hluav taws;
3. High residual voltage ntawm xob laim tam sim no-kev ntseeg tau ntawm cov cuab yeej tiv thaiv xob laim raug txo.
(2) Hauv qhov pom ntawm qhov tsis sib xws ntawm cov khoom lag luam saum toj no, peb lub tuam txhab tau tsim cov txheej txheem tiv thaiv kab mob SPD no tom qab tshawb fawb ntev thiab kev txhim kho thiab ntau qhov kev sim. Cov khoom no muaj cov yam ntxwv hauv qab no:
1. Cov hluav taws xob loj loj tam sim no (25kA 10/350μs, 100kA 8/20μs) tsis muaj cuam tshuam-kom ntseeg tau tias SPD kev tiv thaiv xob laim zoo;
2. SPD txhaum lub hwj chim zaus txuas ntxiv tam sim no tus nqi qis dua 3A ± 1A- kom ntseeg tau tias muaj kev nyab xeeb ntawm cov phiaj hluav taws xob thiab hluav taws xob;
3. Tsawg hluav taws xob cuam tshuam qhov seem hluav taws xob-nce kev ntseeg tau ntawm cov cuab yeej tiv thaiv xob laim.
Qhov cuam tshuam ncaj qha ntawm kev sib xyaw ua ke ntawm cov khoom no thiab SPD yog tias SPD tus tiv thaiv kev tiv thaiv yuav tsis raug txuas nrog hauv qhov cuam tshuam ntawm xob laim hnyav; tom qab SPD ua tsis tiav, lub zog siv hluav taws xob me me tam sim no yuav ntws thiab txiav tawm sai, ua kom muaj kev nyab xeeb ntawm cov phiaj hluav taws xob thiab hluav taws xob.
2. Siv ib puag ncig:
1. Ua haujlwm kub: -250C ~ + 700C; 2. Cia kub: -400C ~ + 850C;
3. Txheeb ze cov av noo: tsis ntau tshaj 95%; 4. Ua haujlwm sab hauv tsev, lossis hauv qhov chaw uas tsis muaj nag lossis daus.
Cov kev ceev faj:
1. Thaum SPD muaj hluav taws xob tam sim no, lub tshuab txuas sab nraud yuav tsis mus los ntawm qhov yuam kev, yog li xob thaiv kev tiv thaiv cov cuab yeej hluav taws xob ib txwm nyob hauv lub xeev muaj txiaj ntsig.
2. Paub txog kev xaiv tawg ntawm lub zog siv hluav taws xob tam sim no thiab xob laim tam sim no, uas tuaj yeem tiv thaiv SPD tau zoo los ntawm kev poob qis, ua rau SPD pib qhov hluav taws xob poob qis dua lub zog siv hluav taws xob, thiab lub zog hluav taws xob tso tawm tam sim no nce ntxiv, ua rau muaj kev phom sij loj.
3. Nws paub qhov kev xaiv tawg ntawm lub zog hla dhau tam sim no thiab xob laim tam sim no, uas tuaj yeem tiv thaiv SPD tau zoo los ntawm kev yaj thiab luv-Circuit vim qhov txawv txav tsis tu ncua ntau dhau, ua rau muaj hluav taws sib tsoo loj.
Tus tiv thaiv kev tiv thaiv tau nruab nrog SCB thaub qab tiv thaiv. Thaum cov khoom siv hluav taws xob muaj qhov hloov pauv tsis tu ncua ntau dhau thiab SPD tau qhib thiab SPD tau yaj thiab luv-circuited, nws yuav ua rau lub zog hluav taws xob mus ncig thiab txiav tawm lub zog, thiab hauv qhov xwm txheej phem tshaj, nws yuav ua rau muaj hluav taws hnyav xwm txheej. Nruab ib qho txuas sab nraud. Ntawd yog, thaum SPD luv-circuited, lub Circuit Court tuaj yeem txuas sai. Nov yog cov lus ceeb toom tshwj xeeb: sab nrauv txuas yuav tsum muaj lub peev xwm los ua kom luv luv-Circuit tam sim no, txwv tsis pub cov teeb meem loj ntawm arc hlawv thiab hluav taws yuav tshwm sim!
Thaum qhov hluav taws xob tam sim no siab dua 10A, SPD kub thiab hlawv sai dua li qhov hloov pauv cua sov, uas yog, SPD twb tau hluav taws kub ua ntej qhov hloov pauv cua sov mus txog qhov ntsuas kub. Tus neeg sab nrauv sab nrauv yuav tsum txuas lub Circuit Court ua ntej ua rau SPD tua hluav taws. Qhov tshwm sim ntawm hluav taws.







