Indlela yokukhetha idivayisi yokuvikelwa kokuphuma (i-SPD)?
Amadivayisi Wokuvivinya Amazinga (I-SPD) isetshenziselwa ukuvikela imishini kagesi ngokumelene nama-surges (ukuvuvukala) okubangelwa ukukhanyisa noma ukushintshwa kwemishini yemishini esindayo (abantu abaningi bangase bangazinaki lokhu). Kungathatha imvelaphi yezobuchwepheshe lapho ukhetha idivayisi efanele yokuvikela ukuqhuma njengoba kunezinhlobo ezahlukene zobuchwepheshe nemigomo.
I standard ye-IEC 61643 ichaza izinhlobo ze-3 zokusebenzisa ama-protective device for low power voltage system.
Thayipha i-1 noma i-Class I: Thayipha i-1 SPD ingafaka umbane oqinile wamanje futhi ifakwe emshinini wokushintsha kagesi uma isakhiwo sivikelwe uhlelo lokuvikelwa ngombani (induku yombani, phansi umqhubi nomhlabathi).
Thayipha i-2 noma i-Class II: Le divayisi yokuzivikela yokuvikela (SPD) iklanyelwe ukukhipha okwamanje okwenziwe ngombani ongaboni ngokuqondile owabangele ukuqhubekela phambili kwe-network yokusabalalisa amandla. Ngokujwayelekile, zifakwe kushintsho lokushicilela okuyinhloko. Thayipha i-2 SPD yi-SPD ethandwa kakhulu emakethe futhi i-Prosurge ibahlinzeka ngezitifiketi ezahlukene.
Thayipha i-3 noma i-Class III: Thayipha i-3 SPDs eklanyelwe ukunciphisa ukuvuthwa kwezimbonini zemishini ebucayi futhi ngakho-ke kunomthamo wamanje okhishwayo okhishwayo.
I-SPD kufanele ifakwe kuphi?
Thayipha idivayisi ye-2 yokuvikela izofakwa ku- […]
Ingabe i-1 SPD ingcono kune-Type 2 SPD?
Akunjalo ngempela. Uhlobo lwe-1 SPD lunikeza ukuxhumeka ngokukwazi ukuxhumeka nganoma yiluphi uhlangothi lokungena kwensizakalo, kodwa i-UL ayiqhathanisi ukusebenza kokugaya ukukhwabanisa kohlobo lwe-1 SPD ngokuhambisana nohlobo lwe-2 SPD. U-UL uphenya ukusebenza kwe-SPmps ngokulinganisa, ngaphandle kokubheka uhlobo lwe-SPD. I-UL iphinda ihlole wonke ama-SPD ngokusebenza okuphephile ngaphakathi kwendawo okuhlosiwe yokufaka kuyo. Kusukela ngo-UL 1449 3rd I-Edition, Thayipha i-SPDs evunyelwe i-1 izofaka amadivayisi ayewaziwa ngaphambili ngokuthi abadobi bokuSondeza okuPhezulu futhi azofaka amadivayisi amaningi ayewaziwa nge-TVSS. Kubalulekile ukuqonda ukuthi amadivaysi amaningi ohlobo lokubamba ama-Secondary awaklanywa nge-MCOV ephezulu (Okuphezulu Okuqhubekayo Okusebenzayo) kunezingcingo ze-TVSS. Futhi njengoba isilinganiso se-MCOV se-SPD singaba nomthelela oqondile ekusebenziseni ukuqhuma ukusebenza, umkhuba omuhle wokhetho lwe-SPD kufanele uhlolisise ngokucophelela ukulinganisa okunjengokuhamba kwesikhathi esiphezulu, i-IEEE yokugubha amandla, i-UL VPR, nokulinganisa impilo yokuphila.
Ngingayifaka kuphi i-SPDs Ukuvikela Isikhungo Sami?
Akunakwenzeka ukuvimbela ukuqhutshwa kwamagesi okungena ngemvume noma ukungena ngaphakathi kwendawo yakho. Uma uvikela isikhungo ngokumelene nezikhathi ezithile, indlela engcono kakhulu iyindlela enethiwekhi noma enhlobonhlobo. Njengoba kuboniswe ngezansi ngezansi, i-Institute of Electrical and Electronics Engineers (IEEE) ithuthukise imikhakha emithathu ukuthi yonke indawo ingahlukaniswa, indawo yendawo A, B kanye no-C. Bheka i-IEEE Standard C62.41.1 ne-C62.41.2 ukuze uthole olunye ulwazi.
Isigaba A: izitolo / izithako kanye nezifunda zegatsha eside (zangaphakathi) (okungenani zinzima)
• Zonke izindawo ezingaphezulu kokuthi i-10m (i-30 ft) evela kusigaba B
• Zonke izindawo ezingaphezu kuka-20m (60 ft) ezivela kuC. C
Isigaba B: abaxhasi, izifunda ezincane zamagatsha namasevisi wenkonzo (yangaphakathi)
• Amadivayisi iphaneli yokusabalalisa
• Ibhasi nokusabalalisa okuphakelayo
• Izitolo ezinkulu ezisetshenziswayo ezinokuxhumana "okufushane" ekungeneni kwensizakalo
• Ukukhanyisa izinhlelo ezakhiweni ezinkulu
Isigaba C: imigqa yangaphandle engaphezulu kanye nokungena kwenkonzo (ngaphandle)
• Izinsizakalo zesevisi ezivela emathunjini kuya ekwakheni
• Isebenza phakathi kwamamitha nephaneli
• Imigqa yangasese yokuvala isakhiwo
• Imigqa engaphansi komhlaba ukuze uphume kahle
Amadivayisi weSigaba C sendawo angasetshenziswa ku- […]
Ngikhetha kanjani i-Prosurge SPD efanele yesicelo sami?
Yize senza konke okusemandleni ethu ukunikeza isethulo esiphezulu, ngokugcwele kwi-website yethu, izinhlu kanye neminye imibhalo, sikholelwa ukuthi indlela engcono kakhulu yokukhetha imodeli ukuxhumana nathi ngemfuno yakho bese kuthi ochwepheshe bethu bazoncoma imodeli efanelekayo.
Yiziphi i-ANSI / UL 1449 I-Edition Yesibili Ne-IEC 61643-1 - Izingqinamba Ezinzima Ekuhlolweni
Okulandelayo kuhlola okungafani okubalulekile phakathi kokuhlolwa kwe-Underwriters Laboratory (UL) okudingekayo ukuze kusetshenziswe amadivayisi okuvikela (SPDs); I-ANSI / UL 1449 I-Third Edition ne-International Electrotechnical Commission (i-IEC) idinga ukuhlolwa kwe-SPDs, IEC 61643-1.
Isikhathi esifushane seSikhathi samanje (SCCR): Umthamo wamanje lapho i-SPD evivinywayo ingamelana khona nama-terminals lapho ixhunyiwe khona, ngaphandle kokuphulukisa okufakiwe nganoma iyiphi indlela.
UL: Uvivinya umkhiqizo ogcwele kabili i-voltage ekhethiwe ukuze ubone ukuthi yonke imikhiqizo ingaxhunyiwe ngokuphelele. Umkhiqizo wonke (njengoba uthunyelwe) uhlolwe; kuhlanganise ne-metal oxide varistors (MOVs).
IEC: Ukuhlola kubheka kuphela ama-terminals kanye nokuxhumana kwangokwenyama ukubona ukuthi kunamandla okwanele okusingatha iphutha. I-MOV ishintshwe nge-block block kanye nomfutho wokunconywa womkhiqizi kufakwa ku-inthanethi (ngaphandle kwedivayisi).
Imax: I-IEC 61643-1 - Inani eliyigugu lomanje ngokusebenzisa i-SPD ene-8 / 20 namagagasi kanye nobukhulu ngokulandelana kokuhlolwa kohlolo lokusebenza komsebenzi wekilasi II.
UL: Ayiboni isidingo sokuhlolwa kwe-Imax.
IEC: Ukuhlolwa kokujikeleza komsebenzi wokusebenza kusetshenziselwa ukukhwela phezulu iphuzu le-Imax (elinqunywe ngumenzi). Lokhu kuhloselwe ukuthola "amaphuzu ongaboni" […]
Ungakhetha kanjani idivayisi efanele yokuvikelwa kokusebenza okumele ifakwe?
Ukukhetha isiboshwa sabakhuphu abafanelekile kuyisici esibalulekile sokuqinisekisa ukuvikelwa okulungile kokufakwa. Uhlelo lokuvikelwa olungakhanyi kahle lwe-Lightning & Surge lungaholela ekugugeni kwasekuqaleni kwe-SPD kanye nokwehluleka okungahle kwenzeke kwamadivayisi wokuvikela ekufakweni okuvumela ukulimala kohlelo lokuqala olusakazayo, ngaleyo ndlela lunqobe umuzwa wokuvikela ukufakwa.
I-Prosurge ayihlinzeki ngemithetho nemikhombandlela yokusekela ukuklama okungalungile kwesistimu yokuvikela ngokusho kwesicelo. Kodwa-ke silandela ukukhanya kwe-IEC kanye ne-UL kanye namazinga okuvikelwa komzimba. Ngalokhu engqondweni sinikeza uhlelo lokusakaza njengalokhu lubekelwe imithetho yemigomo, hhayi imithetho ye-Prosurge.
Emkhakheni wezinhlelo zokusebenza zezimboni, umkhuba ojwayelekile ukufaka uhlelo lokuvikelwa kwe-cascade esekelwe kumadivayisi amaningana avikelayo ahlanganisiwe asezigaba ezahlukene (i-LPZ). Inzuzo yalolu cwaningo yilokuthi ivumela ukukhishwa okuphezulu okukhulu eduze kokungeniswa kokufaka kanye ne-voltage ephansi yokusiyeka (izinga lokuvikelwa) engxenyeni esemqoka yokufakwa kwemishini ebucayi.
Ukwakheka kohlelo lokuvikela okunjalo, phakathi kwezinye izinto, kususelwa ekuhlolweni kwemininingwane efana nokuba khona […]
Ingabe umbane ungawubhubhisa uhlelo lwe-photovoltaic?
Izinhlelo ze-photovoltaic zisezingeni eliphezulu kakhulu kwezobuchwepheshe futhi isiteleka sombani ngokuqondile sizoyibhubhisa nakanjani. Kukhona futhi enye ingozi, njengoba isiteleka somlilo singakha amandla okushisa eduze kwesistimu yombuso welanga futhi lezi zindlela zokuvota zingase zibhubhise uhlelo. I-inverter yikona eliyinhloko elidinga ukuvikelwa. Ngokuvamile, abaguquguquli bazohlanganisa abavikeli be-voltage-voltage kubangaphakathi babo. Kodwa-ke, njengoba lezi zakhi zikhishwa kuphela iziqongo ezincane zamandla, kufanele ucabange ukusebenzisa amadivaysi okuzivikela wokuvikela (SPD) ezimweni ngamanye.
Ingabe ukudlala ukulinganisa isichazamazwi esetshenziselwa i-SPD?
Esikhathini esedlule, abanye abakhiqizi basebenzise izilinganiso zokudlala ezichazweni zabo. Ababhekwa njengesikhombisa esihle sokusebenza kwe-SPD futhi angabonwa yiziphi izinhlangano ezijwayelekile. I-Prosurge ayisekeli le ncazelo futhi.
Ingabe "Isikhathi Sokuphendula" incazelo evumelekile?
Izimpendulo zesikhathi esiphendulwayo azixhaswa yinoma yiziphi izinkampani zokulinganisa ezibheke amadivaysi okuvivinya ama-Surge Protection.EEEE C62.62 Ukuhlola okujwayelekile kwe-SPDs okukhulunywa ngokuqondile akufanele isetshenziswe njengenkcazelo.
Yini amasistimu kagesi ahlukile e-US nezidingo zawo zokuvikela?
Isistimu yokusatshalaliswa kwamandla e-US iyisistimu ye-TN-CS. Lokhu kusho ukuthi abaqhubi be-Neutral ne-Ground bahlanganiswa emnyango wokungena ngamunye, futhi zonke, indawo noma uhlelo oluthile olutholakala ngokwehlukana. Lokhu kusho ukuthi imodi yokuvikela engathathi hlangothi (NG) engaphansi kwe-SPD efakwe kwipaneli yokungena yesevisi ngokuyisisekelo. Ngokuqhubekayo kusuka ku-bondpoint ye-NG, njengama-panels wokusabalalisa amagatsha, isidingo salesi simo sokuvikeleka esengeziwe siqinisekisiwe. Ngaphandle kwendlela yokuvikelwa kwe-NG, ama-SPD athile angabandakanya ukuvikelwa kwe-line-to-neutral (LN) kanye nokuvikelwa komugqa wokuya emgqeni (LL). Kuhlelo lwesithathu lwesigaba se-WYE, isidingo sokuvikelwa kwe-LL sinokungabaza njengokuvikelwa okulinganiselayo kwe-LN futhi kunikeza isilinganiso sokuvikelwa kwabaqhubi be-LL.
Izinguquko kushicilelo luka-2002 lweNational Electrical Code® (NEC ®) (www.nfpa.org) zikuvimbele ukusetshenziswa kwama-SPD ezinhlelweni zokusabalalisa ugesi ze-delta. Ngemuva kwalesi sitatimende kubanzi inhloso yokuthi ama-SPDs akufanele axhunywe nge-LG ngoba ngokwenza lezi zindlela zokuvikela adala izizathu ze-pseudo ohlelweni olintantayo. Izinhlobo zokuvikelwa ezixhunyiwe kwi-LL ziyamukeleka nokho.Uhlelo lwe-high-leg delta luhlelo oluvaliwe futhi ngalokho kuvumela izindlela zokuvikela ukuthi zixhunywe […]