Dzidza nezve UL 1449 Surge Protective Devices (SPDs) yakajairwa, uchiwedzera bvunzo zvinodiwa kune zvigadzirwa munzvimbo dzine hunyoro, kunyanya uchishandisa inogara tembiricha uye humidity bvunzo. Dzidza kuti chidziviriri chekuvhiya chii, uye kuti inzvimbo yakanyorova chii.
Vadziviriri veSurge (Surge Protective Devices, SPDs) vagara vachionekwa seyakanyanya kukosha kudzivirira kwemidziyo yemagetsi. Vanogona kudzivirira kuunganidzwa kwesimba uye kushanduka kwesimba, kuitira kuti midziyo yakadzivirirwa irege kukuvadzwa nekukatyamara kwemagetsi. Mudziviriri wekuvhiya anogona kuve mudziyo wakakwana wakagadzirirwa wakazvimirira, kana unogona kugadzirwa sechikamu uye kuiswa mumagetsi emagetsi emagetsi system.
Sezvambotaurwa pamusoro, vadziviriri vekuvhiya vanoshandiswa nenzira dzakasiyana, asi vanogara vachinyanya kunetsa kana zvasvika pamabasa ekuchengetedza. Iyo UL 1449 yakajairwa chinhu chakajairika icho varapi vemazuva ano vanozivana nacho kana vachinyorera kuwana musika.
Nekuwedzera kuri kuita kuomarara kwemidziyo yemagetsi uye mashandisirwo ayo mumaindasitiri akawandisa, akadai semarambi emumugwagwa eLED, njanji, 5G, photovoltaics nemagetsi emotokari, kushandiswa nekuvandudzwa kwevanodzivirira kuvhiyiwa kuri kuwedzera nekukurumidza, uye zviyero zveindasitiri ndizvo zvakare Inodiwa. kuti ufambirane nenguva uye urambe uchivandudzwa.
Tsanangudzo Yenzvimbo Yakanyorova
Kunyangwe iri NFPA 70 yeNational Fire Protection Association (NFPA) kana iyo National Electrical Code® (NEC), iyo "nzvimbo ine nyoro" yakatsanangurwa zvakajeka sezvinotevera:
Nzvimbo dzakadzivirirwa kubva kumamiriro ekunze uye hadzisi pasi pekuzadzwa nemvura kana zvimwe zvinwiwa asi dziri pasi pekunyorovesa madhigirii.
Kunyanya, matende, mavharanda akavhurika, uye dzimba dzepasi kana dzimba dzekuchengetera mafiriji, nezvimwewo, inzvimbo "dziri pasi pehunyoro hwepakati" mukodhi.
Kana chidziviriro chekuvhiya (senge varistor) chakaisirwa muchigadzirwa chekupedzisira, zvinowanzoitika nekuti chigadzirwa chekupedzisira chinoiswa kana kushandiswa munzvimbo ine hunyoro hwakasiyana, uye zvinofanirwa kutariswa kuti munzvimbo ine hunyoro yakadaro, kuvhiya. mudziviriri Kana ichikwanisa kuzadzisa zviyero zvekuchengetedza munzvimbo yakajairika.
Chigadzirwa Chekuita Kuongorora Zvinodiwa muHumid Nzvimbo
Miyero yakawanda inoda kuti zvigadzirwa zvipfuure dzakateedzana bvunzo dzekuvimbika kuti dzione mashandiro panguva yehupenyu hwechigadzirwa, senge tembiricha yepamusoro uye hunyoro hwepamusoro, kuvhunduka kwekushisa, vibration uye kudonhedza zvinhu zvekuyedza. Kune bvunzo dzinosanganisira dzakateedzerwa nharaunda dzine hunyoro, tembiricha yenguva dzose uye humidity bvunzo ichashandiswa seyakanyanya kuongororwa, kunyanya 85°C tembiricha/85% humidity (inowanzozivikanwa se "double 85 test") uye 40°C tembiricha/93% Humidity Iko kusanganiswa. yezvikamu zviviri izvi zveparameter.
Iyo inogara tembiricha uye humidity bvunzo ine chinangwa chekumhanyisa hupenyu hwechigadzirwa kuburikidza nekuedza nzira. Iyo inogona kunyatso ongorora iyo anti-kuchembera kugona kwechigadzirwa, kusanganisira kufunga kuti chigadzirwa chine maitiro ehupenyu hurefu uye kurasikirwa kwakaderera munzvimbo yakakosha.
Takaita ongororo yebvunzo paindasitiri iyi, uye mhedzisiro inoratidza kuti nhamba yakati wandei yevagadziri vezvigadzirwa zvekupedzisira vari kugadzira zvinodikanwa zvekushisa uye humidity ongororo yezvidziviriri zvekuvhiya uye zvinhu zvakashandiswa mukati, asi iyo UL 1449 standard panguva iyoyo yakanga isina zvinoenderana Naizvozvo, mugadziri anofanira kuita mimwe miedzo ari ega mushure mekuwana UL 1449 chitupa; uye kana chechitatu-party certification report ichidiwa, kugona kweakambotaurwa maitiro ekushanda kunoderedzwa. Zvakare, kana chigadzirwa chekupedzisira chikanyorera UL certification, inosanganawo nemamiriro ezvinhu ekuti chitupa cheti cheti chemukati-chemukati chinoshandiswa kudzvanya-sensitive zvikamu hazvibatanidzwe mukunyorova kwemamiriro ekushandisa bvunzo, uye kumwe kuongorora kunodiwa.
Isu tinonzwisisa zvinodiwa nevatengi uye takatsunga kubatsira vatengi kugadzirisa marwadzo anowanikwa mukushanda chaiko. UL yakatanga chirongwa che1449 chakajairwa.
Zvinoenderana bvunzo zvinodiwa zvakawedzerwa kune mwero
Iyo UL 1449 yakajairwa ichangobva kuwedzera zvinodiwa zvekuyedza zvezvigadzirwa munzvimbo dzine hunyoro. Vagadziri vanogona kusarudza kuwedzera iyi bvunzo nyowani muyedzo kesi vachinyorera UL certification.
Sezvambotaurwa pamusoro, iyo yekunyorova nharaunda application bvunzo inonyanya kutora inogara tembiricha uye humidity bvunzo. Izvi zvinotevera nzira yekuyedza kuona kukodzera kweVaristor (MOV)/Gas Discharge Tube (GDT) yekushandiswa kwenzvimbo yemvura:
Iwo masampula ebvunzo anotanga aiswa mukuyedzwa kwekuchembera pasi pekupisa kwakanyanya uye hunyoro hwepamusoro kwemaawa e1000, uyezve varistor voltage yevaristor kana kuparara kwevoltage yehubhu yekuburitsa gasi inofananidzwa kuratidza kana zvikamu zvekudzivirira zvinokwanisa. kupedzisira kwenguva yakareba Munzvimbo ine hunyoro, inoramba ichichengetedza maitiro ayo ekutanga ekudzivirira.
Nguva yekutumira: Chivabvu-09-2023