Izinkinga eziningi ezishisayo kudivayisi yamanje yokuvikela i-SPD
1. Ukwahlukaniswa kwama-waveforms wokuhlola
Ekuhlolweni kwe-SPD yedivayisi yokuvikela, kunempikiswano eshubile ekhaya nakwamanye amazwe mayelana nezigaba zokuhlola zeClass I (Class B, Type 1), ikakhulukazi endleleni yokulingisa ukukhishwa kwempepho eqondile, impikiswano phakathi kwamakomidi e-IEC ne-IEEE :
(1) IEC 61643-1, ku-Class I (Class B, Type 1) test current test of the surge protection device, ifomu le-wave elingu-10/350 liyindlela yokuhlola yamagagasi.
(2) IEEE C62.45 'IEEE Amadivayisi wokuvikela amandla amancane - Ingxenye 11 Amadivayisi wokuvikela amadivayisi axhunywe kumasistimu amandla kagesi anamandla aphansi - Izidingo nezindlela zokuhlola' zichaza isimo se-wave se-8 / 20µ njenge-waveform test.
Abafakeli begagasi le-10 / 350µs bakholelwa ukuthi ukuze kuqinisekiswe ukuvikelwa okungu-100% ngesikhathi semibani, kufanele kusetshenziswe imingcele yombani eqine kakhulu ukuhlola imishini yokuvikela umbani. Sebenzisa ifomu lamagagasi ayi-10 / 350µs ukuthola i-LPS (Lightning Protection System) ukuqinisekisa ukuthi ayilimazi ngombani. Futhi abasekeli be-wave wave engu-8/20 bakholelwa ukuthi ngemuva kweminyaka engaphezulu kwengu-50 isetshenzisiwe, ifomu lamagagasi likhombisa izinga lokuphumelela eliphakeme kakhulu.
Ngo-Okthoba 2006, abamele abafanele be-IEC ne-IEEE bahlanganisa futhi babala izihloko eziningana zocwaningo.
I-GB18802.1 yokuphakelwa kwamandla i-SPD inezinhlobo zamagagasi ezivivinyo zezigaba zeClass I, II, no-III, bona Ithebula 1.
Ithebula 1: Izigaba zokuhlola ze-I, II no-III
| test | Amaphrojekthi we-Pilot | Amapharamitha wokuhlola |
| I-Class I | Iimp | Iisiqongo, Q, W / R |
| I-Class II | Imax | 8 / 20s |
| I-Class III | Uoc | 1.2 / 50µs -8 / 20µs |
I-United States icubungule izimo ezimbili kulezi zindinganiso ezintathu ezilandelayo:
IEEE C62.41. 1 'Umhlahlandlela we-IEEE ku-Surges Environment ku-Low-Voltage (1000V nangaphansi) ama-AC Power Circuits', 2002
IEEE C62.41. 2 'IEEE Ekunconyweni Kokuzijwayeza Okunconyiwe kwamaSurge ku-Low-Voltage (1000V nangaphansi) Ama-AC Power Circuits', 2002
IEEE C62.41. 2 'IEEE Ekunconyweni Okunconyiwe Kokuhlolwa Kokuqubuka Kwamathuluzi Axhumeke Ku-Low-Voltage (1000V nangaphansi) Ama-AC Power Circuits', 2002
Isimo 1: Umbani awushayi ngqo isakhiwo.
Isimo 2: Kuyisenzakalo esingajwayelekile: umbani ushaya esakhiweni ngqo noma emhlabathini oseduze kwesakhiwo ushaywa umbani.
Ithebula 2 lincoma ama-waveforms amele abamele, futhi iThebula 3 linikeza amanani wokuqina ahambelana nesigaba ngasinye.
Ithebula 2: Indawo i-AB C (Icala loku-1) Ama-Waveforms Wokulinganisa Okujwayelekile Okusetshenzisiwe kanye Nokwengeziwe Kwekesi kanye Nesifinyezo sepharamitha yesi-2.
| Isimo 1 | Isimo 2 | ||||||
| Uhlobo Lendawo | Igagasi elishayayo elingu-100Khz | Inhlanganisela wave | I-voltage / yamanje ehlukile | Umfutho we-EFT 5/50 ns | 10/1000 igagasi elide | Ukuhlanganiswa kwe-inductive | Ukuhlanganiswa okuqondile |
| A | Standard | Standard | - | Imininingwane engeziwe | Imininingwane engeziwe | Igagasi lendandatho lohlobo B | Ukuhlolwa kwamacala ngamacala |
| B | Standard | Standard | - | Imininingwane engeziwe | Imininingwane engeziwe | ||
| C okuphansi | Akuphoqelekile | Standard | - | Akuphoqelekile | Imininingwane engeziwe | ||
| C phezulu | Akuphoqelekile | Standard | Akuphoqelekile | - | |||
Ithebula 3: Isimo se-SPD ekuphumeni 2 kokuqukethwe kokuhlolwa A, B
| Izinga lokuveza | Ama-10/350 wazo zonke izinhlobo ze-SPD | I-8 / 20µ ekhethiwe ye-SPD enezingxenye zokukhawulela kwamandla kagesi angasebenzi C |
| 1 | I-2 kA | I-20 kA |
| 2 | I-5 kA | I-50 kA |
| 3 | I-10 kA | I-100 kA |
| X | Womabili amaqembu axoxisana ngokukhetha amapharamitha aphansi noma aphezulu | |
Qaphela:
A. Lokhu kuhlolwa kukhawulelwe ku-SPD efakwe ekuphumeni, okuhlukile kumazinga kanye namafomu wamagagasi angeziwe ashiwo kulokhu kuncoma, ngaphandle kwe-SPD.
B. Amanani angenhla asebenza esivivinyweni sesigaba ngasinye se-SPD enezigaba eziningi.
C.Ukuhlangenwe nakho okuphumelelayo kokusebenza kwensimu kwe-SPD nge-C ngaphansi kwezinga lokuchayeka 1 kukhombisa ukuthi kungakhethwa amapharamitha aphansi.
“Alukho uhlobo lwamagagasi oluthile olungamela zonke izindawo zokwanda, ngakho-ke umhlaba wangempela oyinkimbinkimbi udinga ukwenziwa lula ukuze ube yindlela elula yokusingatha yokuhlola okujwayelekile. Ukufeza lokhu, izindawo zokwanda zihlukaniswa ukuhlinzeka ngamandla wamandla okwenyuka nokwamanje I-waveform kanye ne-amplitude kuyakhethwa ukuze kulungele ukuhlola amakhono okukhuthazela ahlukile wemishini exhunywe kugesi ophansi we-AC, kanye nemishini yokubekezela kanye imvelo yokwanda idinga ukuhlanganiswa kahle. ”
“Inhloso yokucacisa amafomu e-waveform test test ukuhlinzeka abaklami bezinto zokusebenza kanye nabasebenzisi ngama-waveforms ajwayelekile futhi angeziwe okuhlola ama-surge kanye namazinga ahambelanayo emvelo. Amanani anconyiwe wama-waveforms ajwayelekile yimiphumela eyenziwe lula etholwe ekuhlaziyweni kwenani elikhulu ledatha yokulinganisa. Ukwenziwa lula kuzovumela ukucaciswa okuphindaphindwayo nokusebenza ngempumelelo kokumelana nokwanda kwemishini exhunywe kumandla kagesi aphansi we-AC. ”
Amagagasi kagesi namandla wamanje asetshenziselwa ukuhlolwa kwamandla we-SPD we-voltage of telecommunications kanye namanethiwekhi wesiginali akhonjiswa kuThebula 4.
Ithebula 4: I-Voltage negagasi lamanje lokuhlolwa komthelela (Ithebula 3 le-GB18802-1)
| Inombolo yesigaba | Uhlobo lokuhlola | Vula amandla wesifunda UOC | Isifunda esifushane i-Isc yamanje | Inombolo yezicelo |
A1 A2 | Ukunyuka kancane kakhulu kwe-AC | ≥1kV (0.1-100) kV / S (Khetha kusuka kuThebula 5) | 10A, (0.1-2) A / ≥s ≥1000µS (ububanzi) (Khetha kuthebula 5) | - Umjikelezo owodwa |
B1 B2 B3 | Khuphuka kancane | 1kV, 10/1000 1kV, noma 4kV, 10/700 ≥1kV, 100V / µs | 100A, 10/100 25A, noma 100A, 5/300 (10, 25, 100) A, 10/1000 | 300 300 300 |
C1 amathathu C2 C3 | Ukusukuma okusheshayo | 0.5kV noma 1kV, 1.2 / 50 (2,4,10) kV, 1.2 / 50 ≥1kV, 1kV / µs | 0.25kA noma 0.5kA, 8/20 (1,2,5) kA, 8/20 (10,25,100) A, 10/1000 | 300 10 300 |
D1 D2 | Amandla aphezulu | ≥1kV ≥1kV | (0.5,1,2.5) kA, 10/350 1kA, noma 2.5kA, 10/250 | 2 5 |
Qaphela: Impact isetshenziswa phakathi kwe-terminal line kanye ne-terminal ejwayelekile. Ukuthi kuvivinywa yini phakathi kwamatheminali elayini kunqunywa ngokufaneleka. I-SPD yokuphakelwa kwamandla kanye ne-SPD yezokuxhumana kanye namanethiwekhi wesiginali kufanele enze ifomu lokuhlola elijwayelekile elihlanganisiwe elingafaniswa ne-voltage yokumelana nemishini.
Uhlobo lwe-2.Voltage switch kanye nohlobo lomkhawulo wevolthi
Emlandweni wesikhathi eside, uhlobo lokushintsha kwamandla kagesi nohlobo lokukhawulwa kwamandla wentuthuko ukuthuthuka, ukuncintisana, ukugcwalisa, ukuqamba kabusha, nokwakhiwa kabusha. Uhlobo lwegebe lomoya lohlobo lweshintshi yamandla kagesi lusetshenziswe kabanzi emashumini eminyaka adlule, kepha ludalula nokukhubazeka okuningana. Kunjalo:
(1) Izinga lokuqala (izinga B) elisebenzisa u-10/350 /s wegebe lohlobo lwe-SPD kudale inani elikhulu lamarekhodi ezinsiza zokuxhumana eziteshini zesisekelo zomonakalo omkhulu wombani.
(2) Ngenxa yesikhathi eside sokuphendula kwegebe le-spark SPD kumbani, lapho isiteshi sesisekelo sine-spark SPD kuphela, futhi ingekho enye i-SPD esetshenziselwa ukuvikeleka kwezinga lesibili (ileveli C), umbani wamanje ungadala ukuzwela kombani amadivayisi ekulimaleni kwedivayisi.
(3) Lapho isiteshi sesisekelo sisebenzisa ukuvikela kwamazinga amabili we-B no-C, igebe le-SDP lokuphendula kancane kombani kungadala ukuthi yonke imisebe yombani idlule kumvikeli okhawulela amandla kagesi we-C, okwenza umvikeli wezinga le-C abe ilinyazwe umbani.
(4) Kungahle kube nendawo engabonakali yokuphuma kwenhlansi phakathi kokubambisana kwamandla phakathi kohlobo lwegebe nohlobo olukhawulela ingcindezi (iphuzu eliyimpumputhe lisho ukuthi akukho okukhipha inhlansi esikhaleni sokukhipha inhlansi), okuholele kuhlobo lwe-spark gap SPD ayisebenzi, futhi umvikeli wezinga lesibili (ileveli C) udinga ukumelana nokuphakama. Umbani wamanje udale ukuthi isivikeli sezinga le-C sonakaliswe ngombani (kukhawulwe indawo yesiteshi esisezingeni, ibanga lokuncipha phakathi kwezigxobo ezimbili ze-SPD lidinga cishe amamitha ayi-15). Ngakho-ke, akunakwenzeka ukuthi isigaba sokuqala samukele uhlobo lwe-gap SPD ukuze sisebenzisane ngempumelelo ne-C level SPD.
(5) Ukungeniswa kuxhunywe ochungechungeni phakathi kwamazinga amabili okuvikelwa ukwakha idivaysi yokuqeda ukuxazulula inkinga yebanga lokuvikela phakathi kwamazinga amabili e-SPD. Kungaba khona indawo engaboni noma inkinga yokubonisa phakathi kwalokhu okubili. Ngokwesingeniso: “Ukwehliswa kwenhliziyo kusetshenziswa njengengxenye yokwehla kanye nefomu lamagagasi Umumo unobudlelwano obuseduze. Kuma-waveformform wenani lentengo ende (njenge-10 / 350µs), umphumela we-inductor decoupling awusebenzi kakhulu (uhlobo lwe-spark gap kanye ne-inductor alukwazi ukuhlangabezana nezidingo zokuvikelwa zemibani ehlukahlukene yombani lapho umbani ushaya). Lapho usebenzisa izinto, isikhathi sokunyuka nenani eliphakeme lamandla okuqhuma kufanele kubhekwe. ” Ngaphezu kwalokho, noma ngabe ukufakwa kwe-inductance kungezwa, inkinga yohlobo lwegebe le-SPD voltage efinyelela ku-4kV ngeke ixazululwe, futhi ukusebenza kwensimu kukhombisa ukuthi ngemuva kohlobo lwe-SPD kanye nohlobo lwenhlanganisela ye-SPD luxhunywe ochungechungeni, i-C- izinga le-40kA module efakwe ngaphakathi kokunikezwa kwamandla okushintsha ilahlekelwa yi-SPD Kunamarekhodi amaningi okucekelwa phansi umbani.
(6) Amanani e-di / dt ne-du / dt we-gap-type SPD makhulu kakhulu. Umthelela ezingxenyeni ze-semiconductor ngaphakathi kwemishini evikelwe ngemuva kwe-SPD esezingeni lokuqala ubonakala kakhulu.
(7) Spark gap SPD ngaphandle kokuwohloka kokukhombisa umsebenzi
(8) Uhlobo lwe-spark SPD alukwazi ukubona imisebenzi ye-alarm alarm kanye nephutha ukusayina okukude (okwamanje kungatholwa kuphela yi-LED ukukhombisa isimo sokusebenza kwesekethe elisizayo, futhi akubonisi ukuwohloka nokonakala kokuqhuma kombani umvikeli), ngakho-ke Kweziteshi ezingagadiwe, i-SPD ngezikhathi ezithile ayinakusetshenziswa ngempumelelo.
Ngokufingqa: ngokombono wamapharamitha, izinkomba, nezinto ezisebenzayo njengokucindezela okusalayo, ibanga lokunciphisa, i-spark gas, isikhathi sokuphendula, i-alamu yomonakalo, nokusayina okukude okungenaphutha, ukusetshenziswa kwe-spark gap SPD esiteshini sesisekelo kuyasongela ukusebenza ngokuphepha kohlelo lwezokuxhumana Izinkinga.
Kodwa-ke, ngokuthuthuka okuqhubekayo kobuchwepheshe, i-Spark gap-type SPD iyaqhubeka ukunqoba ukushiyeka kwayo, ukusetshenziswa kwalolu hlobo lwe-SPD nakho kugqamisa izinzuzo ezinkulu. Eminyakeni eyi-15 eyedlule, kwenziwa ucwaningo oluningi nentuthuko ngohlobo lwegebe lomoya (bheka Ithebula 5):
Ngokuya ngokusebenza, isizukulwane esisha semikhiqizo sinezinzuzo zamandla we-low residual, umthamo omkhulu wokugeleza, nosayizi omncane. Ngokusebenzisa ubuchwepheshe be-micro-gap trigger technology, ingabona ibanga elihambelana ne- “0” ne-SPD ekhawulela ingcindezi kanye nokuhlanganiswa kwe-SPD ekhawulela ingcindezi. Iphinde inxephezele ukungabi bikho kokuphendula futhi ikhulise kakhulu ukusungulwa kwezinhlelo zokuvikela umbani. Ngokuya ngomsebenzi, isizukulwane esisha semikhiqizo singaqinisekisa ukusebenza okuphephile kwawo wonke umkhiqizo ngokuqapha ukusebenza kwesekethe yokuqalisa. Umshini wokukhipha okushisayo ufakwe ngaphakathi komkhiqizo ukugwema ukushiswa kwegobolondo langaphandle; ubuchwepheshe obukhulu bebanga lokuvula buyamukelwa kusethi ye-electrode ukugwema ukugeleza okuqhubekayo ngemuva kokuwela zero. Ngasikhathi sinye, futhi ingahlinzeka ngokusebenza kwe-alamu yesiginali ekude ukukhetha usayizi ofanayo wamapulisi wombani, nokunweba impilo yenkonzo.
Ithebula 5: Ukuthuthukiswa okujwayelekile kwegebe le-spark
| S / N | Years | izici eziyinhloko | Amazwi |
| 1 | 1993 | Sungula igebe elibunjiwe elingu- “V” eliguquka lisuka kokuncane liye kwelikhulu, bese usetha insulator encane yokukhipha insimbi emaphethelweni esigodi njengokuzihlukanisa ukusiza ukuthola amandla kagesi aphansi kanye nokukhipha kuze kube yigebe, usebenzisa ama-electrode nesakhiwo sendawo nezinto zempahla ngo-1993 Hola i-arc ngaphandle, wakhe isimo sezikhawu nokucisha i-arc. Ama-discharger wohlobo lwe-gap lakuqala abenamandla amakhulu wokuwohloka nokusakazeka okukhulu. |  |
| 2 | 1998 | Ukusetshenziswa kwesekethe ye-elektroniki, ikakhulukazi ukusetshenziswa kwe-transformer, kuqaphela umsebenzi we-trigger osizayo. Kungokwegebe lokukhipha elisebenzayo elisebenzayo, okuwukuthuthuka kwegebe lokukhipha okwenziwe. Ngehlisa ngempumelelo amandla okuwohloka. Okwe-pulse trigger futhi akuzinzile ngokwanele. |  |
| 3 | 1999 | Ukukhishwa kwegebe kukhuthazwa yisiqeshana esivuthayo (esenziwe ngamandla yi-transformer), isakhiwo sakhiwe njengesakhiwo esivaliwe, futhi igebe eliyindilinga eliyindilinga noma i-arc emise njengoshintsho liguqulwa kusuka kokuncane kuya kokukhulu, kanye nomhlahlandlela womoya i-groove inikezwa ohlangothini ukwenza lula ukudweba nokwandiswa I-arc kagesi iyacinywa futhi isakhiwo esivaliwe singagcwaliswa ngegesi yokuqeda i-arc. Kungukuthuthukiswa kwe-electrode ye-discharge yokuqala. Uma kuqhathaniswa negebe lokukhishwa lendabuko elivaliwe, umgodi omile okwe-arc noma oyindilinga ulungiselela isikhala ne-electrode, evumelana nevolumu encane. Igebe le-electrode lincane, amandla okungena akwanele, |  |
| 4 | 2004 | Bambisana nobuchwepheshe obubangela igebe elincane, sebenzisa ukwakheka kwe-electrode okude kakhulu nobuchwepheshe bokucisha isiteshi sokuvunguza, Ithuthukisa kakhulu ubuchwepheshe be-trigger kanye nekhono lezikhathi ezithile, ukusetshenziswa kwe-energy trigger technology kuzinzile futhi kuthembekile. |  |
| 5 | 2004 | Thuthukisa idivayisi yokuvikela umbani ukwakha idivaysi yomvikeli oyindilinga ehlangabezana nezidingo zokuvikelwa kweClass B neC Class C. Amamojula enziwe ngezikhala zokukhipha, amamojula enziwe ngezinto ezikhawulela amandla kagesi, izisekelo namadivayisi okonakala ahlanganiswa ngezindlela ezahlukahlukene zokwenza amadivayisi wokuvikela ukuvota |  |
Imephu yethrekhi yentuthuko
3. Ukufana nokwehluka phakathi kwe-SPD yezokuxhumana kanye ne-SPD yokunikezwa kwamandla
Ithebula 6: Ukufana nokwehluka phakathi kwe-SPD yezokuxhumana kanye ne-SPD yokunikezwa kwamandla
| project | Amandla SPD | I-Telecom SPD |
| Thumela | Energy | Imininingwane, i-analog, noma i-digital. |
| Isigaba samandla | Imvamisa yamandla AC noma DC | Ama-frequencies ahlukahlukene wokusebenza kusuka ku-DC kuya ku-UHF |
| Operating Voltage | High | Phansi (bona ithebula elingezansi) |
| Isimiso sokuvikelwa | Ukudidiyelwa kokuhlanganiswa Izinga lokuvikelwa le-SPD, izinga lokubekezelelana kwemishini | Ukuhambisana kwe-Electromagnetic kukhuphula ukungavikeleki Izinga lokuvikelwa kwe-SPD, izinga lokubekezelela okokusebenza alikwazi ukuthinta ukudluliswa kwesiginali |
| Standard | GB / T16935.1 / IEC664-1 | GB / T1762.5 IEC61000-4-5 |
| Hlola igagasi | 1.2 / 50 noma 8 / 20s | 1.2 / 50µs -8 / 20µs |
| Ukuvinjelwa kwesekethe | ongaphakeme | High |
| I-Detacher | Have | Cha |
| Izingxenye eziyinhloko | Mov futhi ushintshe uhlobo | I-GDT, ABD, TSS |
Ithebula 7: I-voltage yokusebenza ejwayelekile yokuxhumana kwe-SPD
| Cha | Uhlobo lwentambo yezokuxhumana | Kulinganiswe ngo voltage ukusebenza (V) | I-voltage yokusebenza ye-SPD ephezulu (V) | Izinga elijwayelekile (B / S) | Uhlobo Lokungena |
| 1 | DDN / Xo25 / Uzimele edluliselwe | <6, noma 40-60 | 18 noma 80 | 2 M noma ngaphansi | I-RJ / ASP |
| 2 | i-xDSL | <6 | 18 | 8 M noma ngaphansi | I-RJ / ASP |
| 3 | Ukudluliswa kwedijithali kwe-2M | <5 | 6.5 | I-2 M | I-Coaxial BNC |
| 4 | I-ISDN | 40 | 80 | I-2 M | RJ |
| 5 | Ulayini wocingo we-Analog | <110 | 180 | I-64 K | RJ |
| 6 | I-100M Ethernet | <5 | 6.5 | I-100 M | RJ |
| 7 | I-Coaxial Ethernet | <5 | 6.5 | I-10 M | I-Coaxial BNC Coaxial N |
| 8 | RS232 | <12 | 18 | SD | |
| 9 | RS422 / 485 | <5 | 6 | I-2 M | ASP / SD |
| 10 | Ikhebula levidiyo | <6 | 6.5 | I-Coaxial BNC | |
| 11 | I-Coaxial BNC | <24 | 27 | ASP |
4. Ukubambisana phakathi kokuvikelwa kwangaphandle okwedlulele ne-SPD
Izidingo zokuvikelwa okwedlulele (i-breaker noma i-fuse) kusixhumi:
(1) Thobela i-GB / T18802.12: 2006 “iSurge Protection Device (SPD) Ingxenye 12: Imihlahlandlela Yokukhetha Nokusebenzisa Ye-Low Voltage Distribution System”, “Lapho i-SPD nedivayisi yokuvikela eyeqile manje ibambisana, igama eliphansi elithi Under the discharge current Ku, kunconywa ukuthi isivikeli esisebenza ngokweqile akusebenzi; lapho i-current inkulu kune-In, umvikeli ongaphezulu kwamanje angasebenza. Kumvikeli ongahlehliswa ngaphezu kwesikhathi, njengokwephula isekethe, akufanele kulinyazwe yilokhu kukhuphuka. ”
(2) Inani elilinganisiwe lamanje lesisetshenziswa sokuvikela esisebenza ngaphezulu kwamanje kufanele likhethwe ngokuya ngesilinganiso samanje sesikhashana esifushane esingavezwa ekufakweni kwe-SPD namandla wamanje wesikhashana amelana namandla we-SPD (ahlinzekwa ngumenzi we-SPD ), okusho ukuthi, “i-SPD nokuvikelwa okwedlulele okuxhunywe kuyo. I-short-circuit current (ekhiqizwa lapho i-SPD yehluleka) yedivayisi ilingana noma inkulu kunama-circuits amfishane aphezulu alindelwe ukufakwa. ”
(3) Ubudlelwano obukhethiwe kufanele bwaneliswe phakathi kwensiza yokuvikela esezingeni eliphakeme i-F1 kanye ne-SPD yangaphandle yokuxhuma i-F2 esikhaleni samandla. Umdwebo wiring wesivivinyo ulandelayo:
Imiphumela yocwaningo imi kanje:
(a) Amandla we-voltage kuma-breaker wesifunda nama-fuse
U (wesifunda breaker) ≥ 1.1U (fuse)
U (SPD + umvikeli ongaphezulu kwamanje) yisamba se-vector se-U1 (isivikeli esikhona manje) ne-U2 (SPD).
(b) Umthamo wamanje wokukhuphuka ongamelana nawo i-fuse noma i-breaker breaker
Ngaphansi kwesimo sokuthi isivikeli esisebenza ngokweqile akusebenzi, thola amandla wokuqhuma aphezulu lapho i-fuse ne-breaker breaker enemisinga ehlukene elinganisiwe. Isifunda sokuhlola sikhonjisiwe kumfanekiso ongenhla. Indlela yokuhlola imi ngale ndlela elandelayo: i-inrush current esetshenzisiwe yimi, futhi i-fuse noma i-breaker breaker ayisebenzi. Lapho kusetshenziswa izikhathi ezingama-1.1 ukungena kwamanje kokusebenza, kuyasebenza. Ngokwenza ucwaningo, sithole amanani amancane amanje alinganiselwe adingekayo kubavikeli abangaphezu kwamanje ukuthi bangasebenzi ngaphansi kwamanje okungagudluki (wave wamanje ongu-8 / 20µ noma wamanje ongu-10 / 350µs). Bona ithebula:
Ithebula 8: Inani eliphansi le-fuse ne-breaker breaker ngaphansi kwamanje wokungena ngefomu lamagagasi lama-8 / 20s
| ukuqhuma kwamanje (8 / 20µs) kA | Ubuncane besivikelo eseqile kwamanje | |
| I-Fuse ilinganiswe njengamanje A | Ikhefu lesifunda likalwe njengamanje A | |
| 5 | awu 16g | 6 Uhlobo C |
| 10 | awu 32g | 10 Uhlobo C |
| 15 | awu 40g | 10 Uhlobo C |
| 20 | awu 50g | 16 Uhlobo C |
| 30 | awu 63g | 25 Uhlobo C |
| 40 | awu 100g | 40 Uhlobo C |
| 50 | awu 125g | 80 Uhlobo C |
| 60 | awu 160g | 100 Uhlobo C |
| 70 | awu 160g | 125 Uhlobo C |
| 80 | awu 200g | - |
Ithebula 9: Inani eliphansi le-fuse ne-breaker breaker alisebenzi ngaphansi kwamandla wamanje we-10 / 350µs
| I-Inrush yamanje (10 / 350µs) kA | Ubuncane besivikelo eseqile kwamanje | |
| I-Fuse ilinganiswe njengamanje A | Ikhefu lesifunda likalwe njengamanje A | |
| 15 | awu 125g | Ncoma ukukhetha icala lesifunda elibunjiwe (MCCB) |
| 25 | awu 250g | |
| 35 | awu 315g | |
Kungabonakala etafuleni elingenhla ukuthi amanani amancane wokungasebenzi kwamafyuzi ayi-10/350 nama-breaker wesekethe makhulu kakhulu, ngakho-ke kufanele sicabangele ukwakha izinto ezikhethekile zokuvikela ukwenza isipele
Ngokuya ngokusebenza nokusebenza kwayo, kufanele ibe nokumelana okukhulu komthelela futhi ifane ne-breaker breaker noma i-fuse.
