{"id":23338,"date":"2026-03-31T23:32:53","date_gmt":"2026-03-31T15:32:53","guid":{"rendered":"https:\/\/viox.com\/?p=23338"},"modified":"2026-03-31T23:32:56","modified_gmt":"2026-03-31T15:32:56","slug":"us-low-voltage-circuit-breaker-standards-explained-ul-489-ul-1066-nema-ab-and-nec","status":"publish","type":"post","link":"https:\/\/test.viox.com\/tr\/us-low-voltage-circuit-breaker-standards-explained-ul-489-ul-1066-nema-ab-and-nec\/","title":{"rendered":"ABD Al\u00e7ak Gerilim Devre Kesici Standartlar\u0131 A\u00e7\u0131klamas\u0131: ANSI, IEEE, NEMA, UL, NEC, UL 489, UL 1066, NEMA AB ve IEEE C37"},"content":{"rendered":"<div class=\"product-intro\">\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Engineer-reviewing-low-voltage-circuit-breaker-standards-in-front-of-switchgear-and-distribution-equipment.webp\" alt=\"Engineer reviewing low-voltage circuit breaker standards in front of switchgear and distribution equipment\" \/><figcaption style=\"font-style: italic; margin-top: 10px; color: #555;\">Bir \u015falt tesisi i\u00e7inde ABD al\u00e7ak gerilim devre kesici standartlar\u0131n\u0131 ve dok\u00fcmantasyonunu inceleyen bir m\u00fchendis.<\/figcaption><\/figure>\n<p>Amerika Birle\u015fik Devletleri'nde al\u00e7ak gerilim devre kesicilerle \u00e7al\u0131\u015f\u0131yorsan\u0131z, en zor k\u0131s\u0131m genellikle kesicinin kendisi de\u011fildir. Standartlar sisteminde kimin ne yapt\u0131\u011f\u0131n\u0131 anlamakt\u0131r.<\/p>\n<p>\u0130nsanlar \u015fu gibi isimler g\u00f6r\u00fcr:<\/p>\n<ul>\n<li><strong>ANSI<\/strong><\/li>\n<li><strong>IEEE<\/strong><\/li>\n<li><strong>NEMA<\/strong><\/li>\n<li><strong>UL<\/strong><\/li>\n<li><strong>NFPA<\/strong><\/li>\n<li><strong>UL 489<\/strong><\/li>\n<li><strong>UL 1066<\/strong><\/li>\n<li><strong>NEMA AB<\/strong><\/li>\n<li><strong>IEEE C37<\/strong><\/li>\n<li><strong>NEC<\/strong><\/li>\n<\/ul>\n<p>ve hepsinin ayn\u0131 i\u015fi yapt\u0131\u011f\u0131n\u0131 varsayarlar. Yapm\u0131yorlar. Baz\u0131lar\u0131 standart koordinat\u00f6rleri, baz\u0131lar\u0131 standart geli\u015ftiricileri, baz\u0131lar\u0131 test ve belgelendirme kurulu\u015flar\u0131 ve bunlardan biri \u00fcr\u00fcn standard\u0131 yerine kurulum kodudur.<\/p>\n<p>Onlar\u0131 anlaman\u0131n en basit yolu \u015fudur:<\/p>\n<ul>\n<li><strong>ANSI<\/strong> Amerikan Ulusal Standartlar\u0131 i\u00e7in koordinasyon ve onay katman\u0131d\u0131r, her teknik kesici kural\u0131n\u0131 kendisi yazan kurulu\u015f de\u011fildir.<\/li>\n<li><strong>IEEE<\/strong> ve <strong>NEMA<\/strong> standart geli\u015ftirme yollar\u0131d\u0131r.<\/li>\n<li><strong>UL Standartlar\u0131 ve Kat\u0131l\u0131m<\/strong> standartlar geli\u015ftirirken, <strong>UL \u00c7\u00f6z\u00fcmleri<\/strong> test, de\u011ferlendirme ve belgelendirme faaliyeti ile ili\u015fkilidir.<\/li>\n<li><strong>NFPA<\/strong> yay\u0131nlar <strong>NEC<\/strong>, ve <strong>NEC<\/strong> \u00fcr\u00fcn listeleme standard\u0131 de\u011fil, kurulum kodudur.<\/li>\n<li><strong>UL 489<\/strong> ve <strong>NEMA AB 1<\/strong> kal\u0131pl\u0131 kasa kesici d\u00fcnyas\u0131nda yer al\u0131r.<\/li>\n<li><strong>UL 1066<\/strong> ve al\u00e7ak gerilim <strong>IEEE \/ ANSI-NEMA C37<\/strong> ailesi al\u00e7ak gerilim g\u00fc\u00e7 devre kesici d\u00fcnyas\u0131nda yer al\u0131r.<\/li>\n<\/ul>\n<p>\u00c7ekirdek \u00e7er\u00e7eve budur. Bu makalenin geri kalan\u0131, her birinin pratikte ne anlama geldi\u011fini ve ABD pazar\u0131nda kesicileri se\u00e7erken veya belirtirken nas\u0131l bir araya geldiklerini a\u00e7\u0131klamaktad\u0131r.<\/p>\n<h2>\u00d6nemli \u00c7\u0131kar\u0131mlar<\/h2>\n<ul>\n<li><strong>ANSI<\/strong> Amerikan Ulusal Standartlar\u0131 s\u00fcre\u00e7lerini onaylar; IEEE, NEMA, UL veya NEC ile ayn\u0131 \u015fey de\u011fildir.<\/li>\n<li><strong>UL 489<\/strong> ve <strong>UL 1066<\/strong> ayn\u0131 kesici ailesi i\u00e7in rekabet eden etiketler de\u011fildir.<\/li>\n<li><strong>UL 489 \/ NEMA AB<\/strong> kal\u0131pl\u0131 kasa devre kesici d\u00fcnyas\u0131na i\u015faret eder.<\/li>\n<li><strong>UL 1066 \/ IEEE C37<\/strong> al\u00e7ak gerilim g\u00fc\u00e7 devre kesici d\u00fcnyas\u0131na i\u015faret eder.<\/li>\n<li><strong>NFPA 70 (NEC)<\/strong> kurulum ve uygulamay\u0131 y\u00f6netirken, UL, NEMA ve IEEE belgeleri \u00fcr\u00fcn kategorilerini, yap\u0131 beklentilerini, test \u00e7er\u00e7evelerini veya ilgili k\u0131lavuzlar\u0131 y\u00f6netir.<\/li>\n<li><strong>OSHA NRTL<\/strong> bir kesici standard\u0131 de\u011fil, test laboratuvarlar\u0131 i\u00e7in bir d\u00fczenleyici tan\u0131ma \u00e7er\u00e7evesidir.<\/li>\n<\/ul>\n<h2>H\u0131zl\u0131 Ba\u015fvuru Tablosu<\/h2>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left;\" border=\"1\">\n<thead>\n<tr>\n<th style=\"padding: 8px;\">\u0130sim<\/th>\n<th style=\"padding: 8px;\">Ne Oldu\u011fu<\/th>\n<th style=\"padding: 8px;\">Kesici Ekosistemindeki Tipik Rol\u00fc<\/th>\n<th style=\"padding: 8px;\">Pratik Anlam\u0131<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\"><strong>ANSI<\/strong><\/td>\n<td style=\"padding: 8px;\">Standartlar koordinasyon ve onay kurulu\u015fu<\/td>\n<td style=\"padding: 8px;\">ANSI onayl\u0131 fikir birli\u011fi s\u00fcrecini denetler<\/td>\n<td style=\"padding: 8px;\">Her teknik maddeyi de\u011fil, s\u00fcreci ve fikir birli\u011fini onaylar<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>IEEE<\/strong><\/td>\n<td style=\"padding: 8px;\">Standart geli\u015ftirme kurulu\u015fu<\/td>\n<td style=\"padding: 8px;\">Teknik standartlar yolu, \u00f6zellikle C37 gibi g\u00fc\u00e7 \u015falt tesisi ailelerinde<\/td>\n<td style=\"padding: 8px;\">Bir\u00e7ok g\u00fc\u00e7 kesici standard\u0131 i\u00e7in temel teknik kaynak<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>NEMA<\/strong><\/td>\n<td style=\"padding: 8px;\">Sanayi birli\u011fi ve standart geli\u015ftirme kurulu\u015fu<\/td>\n<td style=\"padding: 8px;\">Kal\u0131pl\u0131 kasa kesici ve \u015falt tesisi ile ilgili standartlar\u0131 ve k\u0131lavuzlar\u0131 yay\u0131nlar<\/td>\n<td style=\"padding: 8px;\">AB ve baz\u0131 ANSI\/NEMA C37 belgeleri i\u00e7in temel kaynak<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>UL Standartlar\u0131 ve Kat\u0131l\u0131m \/ UL \u00c7\u00f6z\u00fcmleri<\/strong><\/td>\n<td style=\"padding: 8px;\">Standart geli\u015ftirme art\u0131 test\/belgelendirme ekosistemi<\/td>\n<td style=\"padding: 8px;\">\u00dcr\u00fcn standartlar\u0131 ve \u00fcr\u00fcn de\u011ferlendirme \u00e7er\u00e7evesi<\/td>\n<td style=\"padding: 8px;\">\u00dcr\u00fcn listeleme ve belgelendirme tart\u0131\u015fmalar\u0131 i\u00e7in merkezi<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>NFPA \/ NEC<\/strong><\/td>\n<td style=\"padding: 8px;\">Kod yay\u0131nc\u0131s\u0131 ve kurulum kodu<\/td>\n<td style=\"padding: 8px;\">Saha tasar\u0131m\u0131, kurulum ve denetim kurallar\u0131<\/td>\n<td style=\"padding: 8px;\">Listelenen kesicilerin nas\u0131l uygulanabilece\u011fini y\u00f6netir<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>OSHA NRTL<\/strong><\/td>\n<td style=\"padding: 8px;\">H\u00fck\u00fcmet tan\u0131ma program\u0131<\/td>\n<td style=\"padding: 8px;\">Belirli \u00fcr\u00fcn sertifikalar\u0131 i\u00e7in \u00f6zel sekt\u00f6r test laboratuvarlar\u0131n\u0131 tan\u0131r<\/td>\n<td style=\"padding: 8px;\">D\u00fczenleyici tan\u0131ma katman\u0131, bir \u00fcr\u00fcn standard\u0131 de\u011fil<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>H\u0131zl\u0131 Zihinsel Model<\/h2>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Technical-infographic-showing-the-relationship-between-ANSI-IEEE-NEMA-UL-NEC-and-OSHA-NRTL.webp\" alt=\"Technical infographic showing the relationship between ANSI, IEEE, NEMA, UL, NEC, and OSHA NRTL\" \/><figcaption style=\"font-style: italic; margin-top: 10px; color: #555;\">ANSI, IEEE, UL ve NEC gibi ba\u015fl\u0131ca ABD elektrik standartlar\u0131 kurulu\u015flar\u0131 aras\u0131ndaki ili\u015fkiyi detayland\u0131ran g\u00f6rsel bir k\u0131lavuz.<\/figcaption><\/figure>\n<p>ABD kesici standartlar\u0131 kaotik hissetti\u011finde, bu basitle\u015ftirilmi\u015f hiyerar\u015fi genellikle yard\u0131mc\u0131 olur:<\/p>\n<ul>\n<li><strong>ANSI<\/strong> fikir birli\u011fi s\u00fcrecini onaylar<\/li>\n<li><strong>IEEE<\/strong>, <strong>NEMA<\/strong>, <strong>UL Standartlar\u0131 ve Kat\u0131l\u0131m<\/strong>ve <strong>NFPA<\/strong> kendi kulvarlar\u0131nda standartlar veya kodlar geli\u015ftirir<\/li>\n<li><strong>UL \u00c7\u00f6z\u00fcmleri<\/strong> ve di\u011fer tan\u0131nm\u0131\u015f kurulu\u015flar \u00fcr\u00fcnleri ge\u00e7erli standartlara g\u00f6re de\u011ferlendirir<\/li>\n<li><strong>OSHA NRTL<\/strong> tan\u0131ml\u0131 belgelendirme kapsamlar\u0131 i\u00e7in laboratuvarlar\u0131 tan\u0131r<\/li>\n<li><strong>NEC (NFPA 70)<\/strong> ekipman\u0131n nas\u0131l kurulmas\u0131 ve uygulanmas\u0131 gerekti\u011fini size s\u00f6yler<\/li>\n<\/ul>\n<p>Bu yap\u0131 netle\u015ftikten sonra, kesici ailesi e\u015flemesi kolayla\u015f\u0131r:<\/p>\n<ul>\n<li><strong>UL 489 \/ NEMA AB<\/strong> kal\u0131pl\u0131 kasa kesici uygulamas\u0131na i\u015faret eder<\/li>\n<li><strong>UL 1066 \/ IEEE C37<\/strong> al\u00e7ak gerilim g\u00fc\u00e7 devre kesicisi ve \u015falt cihaz\u0131 uygulamas\u0131na i\u015faret edin<\/li>\n<\/ul>\n<h2>ABD Standartlar\u0131 Yap\u0131s\u0131nda Kim Ne Yapar<\/h2>\n<p>Belirli kesici belgelerini kar\u015f\u0131la\u015ft\u0131rmadan \u00f6nce, kurumlar\u0131 ay\u0131rmak yard\u0131mc\u0131 olur.<\/p>\n<h3>ANSI<\/h3>\n<p><strong>ANSI<\/strong> \u015fu anlama gelir: <strong>Amerikan Ulusal Standartlar Enstit\u00fcs\u00fc<\/strong>. Rol\u00fc koordinasyon ve onayd\u0131r. ANSI, m\u00fchendislerin kulland\u0131\u011f\u0131 her kesici standard\u0131n\u0131 ki\u015fisel olarak yazmaz. Bunun yerine, standart s\u00fcre\u00e7leri onaylar ve belgeleri Amerikan Ulusal Standartlar\u0131 olarak sunabilen standart geli\u015ftiricileri tan\u0131r.<\/p>\n<p>Pratik terimlerle, ANSI s\u00fcre\u00e7 ve fikir birli\u011fi katman\u0131d\u0131r.<\/p>\n<h3>IEEE<\/h3>\n<p><strong>IEEE<\/strong> \u015fudur <strong>Elektrik ve Elektronik M\u00fchendisleri Enstit\u00fcs\u00fc<\/strong>. Kesici d\u00fcnyas\u0131nda, IEEE \u00f6nemli bir teknik standart yoludur, \u00f6zellikle de <strong>C37 ailesi<\/strong> g\u00fc\u00e7 \u015falt cihaz\u0131 ve g\u00fc\u00e7 devre kesicisi ba\u011flamlar\u0131nda kullan\u0131l\u0131r.<\/p>\n<p>Pratik terimlerle, IEEE teknik standartlar yazan bir kurulu\u015ftur.<\/p>\n<h3>NEMA<\/h3>\n<p><strong>NEMA<\/strong> \u015fudur <strong>Ulusal Elektrik \u00dcreticileri Derne\u011fi<\/strong>. Hem bir end\u00fcstri birli\u011fi hem de ANSI akreditasyonlu bir standart geli\u015ftiricisidir. Al\u00e7ak gerilim kesici \u00e7al\u0131\u015fmalar\u0131nda \u00f6nemlidir \u00e7\u00fcnk\u00fc <strong>NEMA AB<\/strong> kal\u0131pl\u0131 kasa devre kesicileri i\u00e7in ailesini yay\u0131nlar ve ayr\u0131ca <strong>C37<\/strong> \u015falt cihaz\u0131 standartlar\u0131 ortam\u0131n\u0131n bir par\u00e7as\u0131d\u0131r.<\/p>\n<p>Pratik terimlerle, NEMA hem bir end\u00fcstri kurulu\u015fu hem de aktif bir standart yay\u0131nc\u0131s\u0131d\u0131r.<\/p>\n<h3>UL<\/h3>\n<p>\u0130sim <strong>UL<\/strong> genellikle en \u00e7ok kafa kar\u0131\u015f\u0131kl\u0131\u011f\u0131na neden olur \u00e7\u00fcnk\u00fc insanlar bunu hem standart yazma hem de \u00fcr\u00fcn sertifikasyonu anlam\u0131na gelecek \u015fekilde kullan\u0131r.<\/p>\n<p>\u00dcst d\u00fczeyde:<\/p>\n<ul>\n<li><strong>UL Standartlar\u0131 ve Kat\u0131l\u0131m<\/strong> standart geli\u015ftirme ile ili\u015fkilidir<\/li>\n<li><strong>UL \u00c7\u00f6z\u00fcmleri<\/strong> test, de\u011ferlendirme ve sertifikasyon faaliyeti ile ili\u015fkilidir<\/li>\n<\/ul>\n<p>Bu nedenle m\u00fchendisler \u201cbu bir UL kesicidir\u201d dediklerinde, genellikle kesicinin <strong>UL 489<\/strong> veya <strong>UL 1066<\/strong> gibi bir UL \u00fcr\u00fcn standard\u0131na g\u00f6re tan\u0131nm\u0131\u015f bir sertifikasyon kurulu\u015fu taraf\u0131ndan de\u011ferlendirildi\u011fi anlam\u0131na gelir.<\/p>\n<h3>NFPA ve NEC<\/h3>\n<p><strong>NFPA<\/strong> \u015fudur <strong>Ulusal Yang\u0131n Koruma Derne\u011fi<\/strong>. Yay\u0131nlar <strong>NFPA 70<\/strong>, daha \u00e7ok <strong>NEC<\/strong>, veya Ulusal Elektrik Kodu olarak bilinir.<\/p>\n<p>Unutulmamas\u0131 gereken \u00f6nemli \u015fey \u015fudur:<\/p>\n<ul>\n<li><strong>NFPA<\/strong> yay\u0131nc\u0131d\u0131r<\/li>\n<li><strong>NEC<\/strong> kod belgesidir<\/li>\n<\/ul>\n<h3>OSHA NRTL<\/h3>\n<p>Bu <strong>OSHA NRTL Program\u0131<\/strong> tek bir laboratuvar ve tek bir kesici standard\u0131 de\u011fildir. Belirli tan\u0131nm\u0131\u015f kapsamlar dahilinde \u00fcr\u00fcnleri sertifikaland\u0131ran \u00f6zel sekt\u00f6r laboratuvarlar\u0131 i\u00e7in bir h\u00fck\u00fcmet tan\u0131ma \u00e7er\u00e7evesidir.<\/p>\n<p>Bu, uyumluluk tart\u0131\u015fmalar\u0131nda \u00f6nemlidir \u00e7\u00fcnk\u00fc piyasa genellikle \u201cUL\u201d tek sertifikasyon yoluymu\u015f gibi konu\u015fur. Ger\u00e7ekte, d\u00fczenleyici mant\u0131k daha geni\u015ftir: OSHA, tan\u0131mlanm\u0131\u015f \u00fcr\u00fcn standard\u0131 kapsamlar\u0131 i\u00e7in test laboratuvarlar\u0131n\u0131 tan\u0131r.<\/p>\n<h2>Bu Standartlar Neden Kar\u0131\u015ft\u0131r\u0131l\u0131yor<\/h2>\n<p>Kafa kar\u0131\u015f\u0131kl\u0131\u011f\u0131 genellikle \u00fc\u00e7 nedenden biriyle olur:<\/p>\n<h3>1. M\u00fchendisler \u201ckesici standard\u0131\u201dn\u0131 farkl\u0131 \u015feyler ifade etmek i\u00e7in kullan\u0131r<\/h3>\n<p>Bazen \u015fu anlama gelir:<\/p>\n<ul>\n<li>\u00fcr\u00fcn listeleme standard\u0131<\/li>\n<li>ekipman yap\u0131m standard\u0131<\/li>\n<li>kurulum kodu<\/li>\n<li>bak\u0131m k\u0131lavuzu<\/li>\n<\/ul>\n<p>Bunlar ayn\u0131 kategori de\u011fildir.<\/p>\n<h3>2. UL 489 ve UL 1066'n\u0131n her ikisi de al\u00e7ak gerilim kesiciler i\u00e7in ge\u00e7erlidir<\/h3>\n<p>Bu, onlar\u0131 benzer g\u00f6sterir, ancak farkl\u0131 kesici ailelerini hedeflerler.<\/p>\n<h3>3. NEMA AB ve IEEE C37'nin her ikisi de tek belge de\u011fil, seridir<\/h3>\n<p>\u0130nsanlar \u201cNEMA AB\u201d veya \u201cIEEE C37\u201dyi her biri tek bir standartm\u0131\u015f gibi s\u00f6ylerler. Ger\u00e7ekte, her iki isim de standart ailelerine at\u0131fta bulunur.<\/p>\n<h3>4. NEC sertifikasyonla kar\u0131\u015ft\u0131r\u0131l\u0131r<\/h3>\n<p>De\u011fildir. NEC, \u00fcr\u00fcn listeleme de\u011fil, kurulum kodudur.<\/p>\n<h2>UL 489 Ne Anlama Gelir<\/h2>\n<p><strong>UL 489<\/strong> , insanlar\u0131n \u015fube ve besleyici uygulamalar\u0131ndaki s\u0131radan kal\u0131pl\u0131 kasa devre kesicilerinden bahsederken d\u00fc\u015f\u00fcnd\u00fckleri temel ABD g\u00fcvenlik standard\u0131d\u0131r.<\/p>\n<p>UL Solutions'a g\u00f6re UL 489 \u015funlar\u0131 kapsar:<\/p>\n<ul>\n<li>kal\u0131pl\u0131 kasa devre kesicileri<\/li>\n<li>kal\u0131pl\u0131 kasa anahtarlar\u0131<\/li>\n<li>devre kesici muhafazalar\u0131<\/li>\n<\/ul>\n<p>Pratik tasar\u0131m terimleriyle, bu en s\u0131k \u015fu standart aile ile ili\u015fkilendirilen standartt\u0131r:<\/p>\n<ul>\n<li>pano kesicileri<\/li>\n<li>bir\u00e7ok minyat\u00fcr ve kal\u0131pl\u0131 kasa \u015fube cihaz\u0131<\/li>\n<li>tipik al\u00e7ak gerilim da\u011f\u0131t\u0131m\u0131ndaki besleyici kesiciler<\/li>\n<li>yayg\u0131n ticari ve end\u00fcstriyel sistemlerde standart a\u015f\u0131r\u0131 ak\u0131m koruma cihazlar\u0131 olarak hizmet etmesi beklenen kesici tertibatlar\u0131<\/li>\n<\/ul>\n<p>Bu nedenle UL 489, \u00e7o\u011fu al\u0131c\u0131n\u0131n <a href=\"https:\/\/test.viox.com\/tr\/mcb\/\">MCB&#039;N\u0130N<\/a> ve <a href=\"https:\/\/test.viox.com\/tr\/mccb\/\">MCCB'N\u0130N<\/a> olarak tan\u0131mlayaca\u011f\u0131 \u00fcr\u00fcn ailelerine yak\u0131n durur, ancak kesin kategori e\u015flemesi \u00fcr\u00fcn tasar\u0131m\u0131na ve listeleme yoluna ba\u011fl\u0131d\u0131r.<\/p>\n<p>Bu konunun cihaz ailesi taraf\u0131n\u0131 istiyorsan\u0131z, <a href=\"https:\/\/test.viox.com\/tr\/full-guide-to-molded-case-circuit-breakers-mccbs\/\">Kal\u0131pl\u0131 Kutulu Devre Kesiciler (MCCB'ler) i\u00e7in Tam K\u0131lavuz<\/a> do\u011fru e\u015flik eden sayfad\u0131r.<\/p>\n<h2>UL 1066 Ne Anlama Gelir?<\/h2>\n<p><strong>UL 1066<\/strong> \u015funlar i\u00e7in ge\u00e7erlidir: <strong>muhafazalarda kullan\u0131lan al\u00e7ak gerilim AC ve DC g\u00fc\u00e7 devre kesicileri<\/strong>.<\/p>\n<p>Bu, genellikle UL 489 ile ili\u015fkilendirilen kal\u0131pl\u0131 kasa devre kesicilerinden farkl\u0131 bir devre kesici ailesidir. Pratik sistem tasar\u0131m\u0131nda, UL 1066 \u00e7ok daha yak\u0131ndan \u015funlarla ba\u011flant\u0131l\u0131d\u0131r:<\/p>\n<ul>\n<li>\u015falt cihazlar\u0131<\/li>\n<li>al\u00e7ak gerilim g\u00fc\u00e7 devre kesicileri<\/li>\n<li>daha b\u00fcy\u00fck ana ve ba\u011flant\u0131 devre kesici uygulamalar\u0131<\/li>\n<li>\u00e7ekmeceli veya muhafaza tabanl\u0131 g\u00fc\u00e7 devre kesici tertibatlar\u0131<\/li>\n<\/ul>\n<p>UL Solutions ayr\u0131ca \u00f6nemli bir fonksiyonel ayr\u0131ma dikkat \u00e7ekiyor: bu g\u00fc\u00e7 devre kesicileri <strong>NEC taraf\u0131ndan gerekli k\u0131l\u0131nan bran\u015f devresi a\u015f\u0131r\u0131 ak\u0131m korumas\u0131n\u0131 sa\u011flamak i\u00e7in tasarlanmam\u0131\u015ft\u0131r<\/strong> UL 489 kal\u0131pl\u0131 kasa devre kesicilerinin yayg\u0131n olarak yapt\u0131\u011f\u0131 gibi.<\/p>\n<p>Bu, spesifikasyonlarda \u201cUL 489 devre kesici\u201d yerine \u201cUL 1066 devre kesici\u201dyi geli\u015fig\u00fczel de\u011fi\u015ftirmemenizin en \u00f6nemli nedenlerinden biridir.<\/p>\n<p>\u00dcr\u00fcn ailesi ba\u011flam\u0131 i\u00e7in bu konu, daha do\u011fal olarak \u015funlarla \u00f6rt\u00fc\u015fmektedir: <a href=\"https:\/\/test.viox.com\/tr\/acb\/\">ACB<\/a> ve daha geni\u015f <a href=\"https:\/\/test.viox.com\/tr\/complete-guide-to-air-circuit-breakers-acb\/\">Hava Devre Kesiciler (ACB) i\u00e7in Tam K\u0131lavuz<\/a>, \u00e7\u00fcnk\u00fc uygulamada bir\u00e7ok al\u00e7ak gerilim g\u00fc\u00e7 devre kesici tart\u0131\u015fmas\u0131 burada sonu\u00e7lan\u0131r.<\/p>\n<h2>UL 489 - UL 1066: Ger\u00e7ek Fark<\/h2>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Comparison-infographic-showing-the-differences-between-UL-489-and-UL-1066-breaker-applications.webp\" alt=\"Comparison infographic showing the differences between UL 489 and UL 1066 breaker applications\" \/><figcaption style=\"font-style: italic; margin-top: 10px; color: #555;\">Kal\u0131pl\u0131 Kasa Devre Kesici uygulamalar\u0131n\u0131 (UL 489 \/ NEMA AB) Al\u00e7ak Gerilim G\u00fc\u00e7 Devre Kesici uygulamalar\u0131yla (UL 1066 \/ IEEE C37) kar\u015f\u0131la\u015ft\u0131ran a\u00e7\u0131klamal\u0131 bir harita.<\/figcaption><\/figure>\n<p>En kullan\u0131\u015fl\u0131 ayr\u0131m \u201changisi daha iyi\u201d de\u011fil, <strong>asl\u0131nda ne t\u00fcr bir devre kesici belirtti\u011finizdir<\/strong>.<\/p>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left;\" border=\"1\">\n<thead>\n<tr>\n<th style=\"padding: 8px;\">Boyut<\/th>\n<th style=\"padding: 8px;\">UL 489<\/th>\n<th style=\"padding: 8px;\">UL 1066<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\"><strong>Birincil devre kesici ailesi<\/strong><\/td>\n<td style=\"padding: 8px;\">Kal\u0131pl\u0131 kasa devre kesici ailesi<\/td>\n<td style=\"padding: 8px;\">Al\u00e7ak gerilim g\u00fc\u00e7 devre kesici ailesi<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Tipik kurulum ba\u011flam\u0131<\/strong><\/td>\n<td style=\"padding: 8px;\">Panolar, bran\u015f ve besleme devreleri, standart da\u011f\u0131t\u0131m sistemleri<\/td>\n<td style=\"padding: 8px;\">\u015ealt cihazlar\u0131, \u015febeke, ba\u011flant\u0131lar, daha b\u00fcy\u00fck g\u00fc\u00e7 da\u011f\u0131t\u0131m tertibatlar\u0131<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Koruma rol\u00fc<\/strong><\/td>\n<td style=\"padding: 8px;\">Genellikle standart bran\u015f \/ besleme a\u015f\u0131r\u0131 ak\u0131m koruma cihaz\u0131 olarak kullan\u0131l\u0131r<\/td>\n<td style=\"padding: 8px;\">Muhafaza ve \u015falt cihaz\u0131 ba\u011flam\u0131nda g\u00fc\u00e7 devre kesici olarak kullan\u0131l\u0131r<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Tipik pazar ili\u015fkisi<\/strong><\/td>\n<td style=\"padding: 8px;\">Pazar\u0131n MCB \/ MCCB taraf\u0131<\/td>\n<td style=\"padding: 8px;\">Pazar\u0131n LV g\u00fc\u00e7 devre kesici \/ ACB taraf\u0131<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Bu ayn\u0131 zamanda m\u00fchendislerin kal\u0131pl\u0131 kasa devre kesiciyi do\u011frudan al\u00e7ak gerilim g\u00fc\u00e7 devre kesiciyle kar\u015f\u0131la\u015ft\u0131r\u0131rken dikkatli olmalar\u0131 gerekti\u011finin nedenidir. Sertifikasyon yolu, fiziksel yap\u0131, bak\u0131m beklentileri ve ama\u00e7lanan uygulama ayn\u0131 de\u011fildir.<\/p>\n<h2>\u201cNEMA AB\u201d Asl\u0131nda Ne Anlama Gelir?<\/h2>\n<p>Bu konudaki en kullan\u0131\u015fl\u0131 a\u00e7\u0131klamalardan biri \u015fudur: <strong>NEMA AB, UL'ye kar\u015f\u0131 tek bir rekabet standard\u0131 de\u011fildir<\/strong>.<\/p>\n<p>Kal\u0131pl\u0131 kasa devre kesici \u00fcr\u00fcn grubuna ba\u011fl\u0131 bir belge ailesidir.<\/p>\n<h3>NEMA AB 1<\/h3>\n<p>Tarihsel olarak, <strong>NEMA AB 1<\/strong> ayn\u0131 \u00fcr\u00fcn ailesiyle en yak\u0131ndan ili\u015fkili kal\u0131pl\u0131 kasa devre kesici \u00fcr\u00fcn belgesidir. <strong>UL 489<\/strong>. Bir\u00e7ok m\u00fchendis hala bundan bahsediyor \u00e7\u00fcnk\u00fc eski literat\u00fcr, \u00fcr\u00fcn belgeleri ve k\u0131lavuz ka\u011f\u0131tlar\u0131 UL 489'un yan\u0131 s\u0131ra AB 1 dilini kullan\u0131yor.<\/p>\n<p>Bununla birlikte, mevcut Kuzey Amerika uygulamas\u0131nda, daha \u00f6nemli nokta, kal\u0131pl\u0131 kasa devre kesici \u00fcr\u00fcn standard\u0131 \u00e7er\u00e7evesinin art\u0131k yayg\u0131n olarak <strong>\u00fc\u00e7 uluslu UL 489 \/ CSA C22.2 No. 5 \/ NMX-J-266-ANCE uyumu<\/strong>. arac\u0131l\u0131\u011f\u0131yla anla\u015f\u0131lmas\u0131d\u0131r. Bu nedenle, eski materyallerde AB 1'den bahsedildi\u011fini g\u00f6r\u00fcrseniz, bunu kal\u0131pl\u0131 kasa devre kesici standartlar\u0131 ge\u00e7mi\u015finin ve \u00fcr\u00fcn ailesi soyunun bir par\u00e7as\u0131 olarak ele al\u0131n, g\u00fcvenmeniz gereken tek ge\u00e7erli k\u0131saltma olarak de\u011fil.<\/p>\n<h3>NEMA AB 4<\/h3>\n<p>NEMA AB 4, bak\u0131ma y\u00f6nelik bir belgedir. Ticari ve end\u00fcstriyel uygulamalarda kullan\u0131lan kal\u0131pl\u0131 kasa devre kesicilerin incelenmesi ve \u00f6nleyici bak\u0131m\u0131 i\u00e7in rehberlik sa\u011flar.<\/p>\n<p>Bu, AB 4'\u00fc \u015funlar i\u00e7in kullan\u0131\u015fl\u0131 hale getirir:<\/p>\n<ul>\n<li>bak\u0131m programlar\u0131<\/li>\n<li>tesis m\u00fchendisli\u011fi<\/li>\n<li>ticari ve end\u00fcstriyel devre kesici inceleme planlamas\u0131<\/li>\n<\/ul>\n<h3>Di\u011fer NEMA AB belgeleri<\/h3>\n<p>Ayr\u0131ca a\u015fa\u011f\u0131dakiler dahil di\u011fer AB serisi belgeler de vard\u0131r:<\/p>\n<ul>\n<li><strong>AB 3<\/strong> kal\u0131pl\u0131 kasa devre kesici uygulama k\u0131lavuzu i\u00e7in<\/li>\n<li><strong>AB 4<\/strong> inceleme ve \u00f6nleyici bak\u0131m i\u00e7in<\/li>\n<li><strong>AB 5<\/strong> al\u00e7ak gerilim devre kesici sistemlerinde se\u00e7ici koordinasyon k\u0131lavuzu i\u00e7in<\/li>\n<\/ul>\n<p>Buradaki kilit nokta, \u201cNEMA AB\u201dnin bir <strong>kal\u0131pl\u0131 kasa devre kesici belgeleri ailesi<\/strong>, olarak okunmas\u0131 gerekti\u011fidir, UL'nin, NEC'nin veya mevcut Kuzey Amerika uygulamas\u0131nda kullan\u0131lan \u00fc\u00e7 uluslu \u00fcr\u00fcn standard\u0131 \u00e7er\u00e7evesinin yerini alan tek bir etiket olarak de\u011fil.<\/p>\n<h2>IEEE C37 Nereye Uygun?<\/h2>\n<p>NEMA AB, ABD ekosisteminin kal\u0131pl\u0131 kasa devre kesici ailesi taraf\u0131ysa, <strong>IEEE C37<\/strong> b\u00fcy\u00fck al\u00e7ak gerilim ve orta gerilim g\u00fc\u00e7 \u015falt cihaz\u0131 ailesi taraf\u0131d\u0131r.<\/p>\n<p>Al\u00e7ak gerilim g\u00fc\u00e7 devre kesici tart\u0131\u015fmalar\u0131 i\u00e7in, en ilgili C37 belgeleri genellikle \u015funlar\u0131 i\u00e7erir:<\/p>\n<ul>\n<li><strong>IEEE C37.13<\/strong> muhafazalarda kullan\u0131lan al\u00e7ak gerilim AC g\u00fc\u00e7 devre kesicileri i\u00e7in<\/li>\n<li><strong>IEEE C37.14<\/strong> muhafazalarda kullan\u0131lan al\u00e7ak gerilim DC g\u00fc\u00e7 devre kesicileri i\u00e7in<\/li>\n<li><strong>IEEE C37.16<\/strong> al\u00e7ak gerilim g\u00fc\u00e7 devre kesicileri i\u00e7in tercih edilen de\u011ferler ve uygulama \u00f6nerileri i\u00e7in<\/li>\n<li><strong>IEEE C37.17<\/strong> al\u00e7ak gerilim g\u00fc\u00e7 devre kesicileri i\u00e7in a\u00e7ma sistemleri i\u00e7in<\/li>\n<li><strong>IEEE C37.20.1<\/strong> metal muhafazal\u0131 al\u00e7ak gerilim g\u00fc\u00e7 devre kesici \u015falt cihazlar\u0131 i\u00e7in<\/li>\n<li><strong>ANSI\/NEMA C37.50<\/strong> al\u00e7ak gerilim AC g\u00fc\u00e7 devre kesici test prosed\u00fcrleri i\u00e7in<\/li>\n<li><strong>ANSI\/NEMA C37.51<\/strong> metal muhafazal\u0131 al\u00e7ak gerilim g\u00fc\u00e7 devre kesici \u015falt cihaz\u0131 d\u00fczenekleri i\u00e7in uygunluk test prosed\u00fcrleri i\u00e7in<\/li>\n<\/ul>\n<p>Bu nedenle ABD pazar\u0131nda ciddi al\u00e7ak gerilim g\u00fc\u00e7 kesici \u00e7al\u0131\u015fmalar\u0131 genellikle sizi sadece UL 1066'n\u0131n \u00f6tesine ve daha geni\u015f bir alana \u00e7eker. <strong>C37 ailesi<\/strong>.<\/p>\n<h2>Baz\u0131 C37 Standartlar\u0131 Neden IEEE ve Di\u011ferleri ANSI\/NEMA Olarak Adland\u0131r\u0131l\u0131r?<\/h2>\n<p>Bu, ilk kez g\u00f6ren bir\u00e7ok okuyucuyu \u015fa\u015f\u0131rt\u0131yor.<\/p>\n<p>K\u0131sa cevap \u015fu ki <strong>C37 bir ailedir<\/strong>, ancak yay\u0131n yolu her belgede her zaman ayn\u0131 \u015fekilde etiketlenmez.<\/p>\n<p>Uygulamada:<\/p>\n<ul>\n<li>gibi belgeler <strong>C37.13<\/strong>, <strong>C37.14<\/strong>, <strong>C37.17<\/strong>ve <strong>C37.20.1<\/strong> genellikle alt\u0131nda kar\u015f\u0131la\u015f\u0131l\u0131r <strong>IEEE<\/strong> yolunu<\/li>\n<li>gibi belgeler <strong>C37.50<\/strong> ve <strong>C37.51<\/strong> genellikle \u015fu \u015fekilde kar\u015f\u0131la\u015f\u0131l\u0131r <strong>ANSI\/NEMA<\/strong> belgeler<\/li>\n<\/ul>\n<p>Buradan \u00e7\u0131kar\u0131lacak sonu\u00e7, bunlar\u0131n farkl\u0131 teknik evrenlere ait olmad\u0131\u011f\u0131d\u0131r. Buradan \u00e7\u0131kar\u0131lacak sonu\u00e7 \u015fudur ki <strong>bunlar daha geni\u015f C37 \u015falt cihaz\u0131 \u00e7er\u00e7evesi i\u00e7inde ilgili belgelerdir, ancak kapakta g\u00f6sterilen yay\u0131n ve onay yolu farkl\u0131l\u0131k g\u00f6sterebilir<\/strong>.<\/p>\n<h2>NEC Ne Yapar ve Ne Yapmaz<\/h2>\n<p>Bu <strong>Ulusal Elektrik Kodu (NEC)<\/strong> kurulum kodudur. Tasar\u0131mc\u0131lara, kurulumculara ve denet\u00e7ilere elektrikli ekipman\u0131n ger\u00e7ek sistemlerde nas\u0131l uygulanmas\u0131 gerekti\u011fini s\u00f6yler.<\/p>\n<p>NEC'nin yapt\u0131klar\u0131:<\/p>\n<ul>\n<li>uygulama kurallar\u0131n\u0131 belirler<\/li>\n<li>kurulum gereksinimlerini olu\u015fturur<\/li>\n<li>listelenmi\u015f ve etiketlenmi\u015f ekipman\u0131n talimatlar\u0131na g\u00f6re ne zaman kullan\u0131lmas\u0131 gerekti\u011fini s\u00f6yler<\/li>\n<li>sahada a\u015f\u0131r\u0131 ak\u0131m koruma kurallar\u0131n\u0131 tan\u0131mlar<\/li>\n<\/ul>\n<p>NEC'nin yapmad\u0131klar\u0131:<\/p>\n<ul>\n<li>bir kesici \u00fcr\u00fcn\u00fcn\u00fc onaylamak<\/li>\n<li>bir \u00fcr\u00fcn test standard\u0131 olarak hizmet etmek<\/li>\n<li>UL \u00fcr\u00fcn listeleme gereksinimlerinin yerini almak<\/li>\n<\/ul>\n<p>Bu nedenle NEC sorular\u0131 genellikle onun yerine de\u011fil, UL sorusunun \u00fczerinde yer al\u0131r.<\/p>\n<p>Pratik ABD tasar\u0131m \u00e7al\u0131\u015fmalar\u0131nda, mant\u0131k genellikle \u015f\u00f6yle olur:<\/p>\n<ol>\n<li>Bu hangi kesici ailesi?<\/li>\n<li>Hangi \u00fcr\u00fcn standard\u0131 veya listeleme yolu ge\u00e7erli?<\/li>\n<li>NEC'nin kurulmas\u0131n\u0131 ve uygulanmas\u0131n\u0131 nas\u0131l gerektiriyor?<\/li>\n<\/ol>\n<h2>ABD Kesici \u00c7al\u0131\u015fmalar\u0131nda Neden SCCR ve AIC \u00d6nemli?<\/h2>\n<p>Standartlar\u0131n adlar\u0131nda durursan\u0131z, ABD kesici se\u00e7imindeki en pratik m\u00fchendislik sorular\u0131ndan birini hala ka\u00e7\u0131r\u0131rs\u0131n\u0131z: <strong>cihaz veya d\u00fczenek, ama\u00e7lanan uygulamas\u0131nda hangi ar\u0131za ak\u0131m\u0131n\u0131 g\u00fcvenli bir \u015fekilde kesebilir veya dayanabilir?<\/strong><\/p>\n<p>Burada iki fikir \u00f6nemlidir:<\/p>\n<ul>\n<li><strong>AIC<\/strong> belirtilen bir voltaj ve ko\u015fulda kesme kapasitesini tan\u0131mlamak i\u00e7in kesici uygulamas\u0131nda yayg\u0131n olarak kullan\u0131l\u0131r<\/li>\n<li><strong>SCCR<\/strong> sahada uyguland\u0131\u011f\u0131 \u015fekliyle d\u00fczene\u011fin veya ekipman\u0131n k\u0131sa devre ak\u0131m\u0131 de\u011feridir<\/li>\n<\/ul>\n<p>Standartlar\u0131n soyut olmaktan \u00e7\u0131k\u0131p spesifikasyon riskini etkilemeye ba\u015flad\u0131\u011f\u0131 yer buras\u0131d\u0131r.<\/p>\n<h3>UL 489 kal\u0131pl\u0131 kasa kesici \u00e7al\u0131\u015fmalar\u0131nda<\/h3>\n<p>Kesme de\u011ferleri, \u00fcr\u00fcn se\u00e7iminin kendisi i\u00e7in merkezi \u00f6neme sahiptir. Mevcut ar\u0131za ak\u0131m\u0131 kesicinin kesme kapasitesinden y\u00fcksekse, bir kesici bir panelde m\u00fckemmel \u015fekilde kabul edilebilirken ba\u015fka bir panelde tamamen uygunsuz olabilir.<\/p>\n<h3>UL 1066 \/ g\u00fc\u00e7 kesici ve \u015falt cihaz\u0131 \u00e7al\u0131\u015fmalar\u0131nda<\/h3>\n<p>Konu\u015fma daha geni\u015f hale gelir \u00e7\u00fcnk\u00fc kesici se\u00e7imi sadece kesicinin kendisine de\u011fil, ayn\u0131 zamanda \u015falt cihaz\u0131 yap\u0131m\u0131na, test prosed\u00fcrlerine, a\u00e7ma sistemlerine ve ilgili C37 aile ba\u011flam\u0131na da ba\u011fl\u0131d\u0131r.<\/p>\n<h3>\u00d6zel ekipman ve end\u00fcstriyel kontrol panellerinde<\/h3>\n<p>Her bir bile\u015fen ayr\u0131 ayr\u0131 kabul edilebilir olsa bile, d\u00fczene\u011fin yine de uygun bir de\u011fere ula\u015fmas\u0131 gerekir. <strong>SCCR<\/strong>. Bu nedenle ABD'li m\u00fchendisler \u201cbu kesici UL listesinde\u201d ifadesinde duramazlar. Ayr\u0131ca \u015funu da sormalar\u0131 gerekir:<\/p>\n<ul>\n<li>mevcut ar\u0131za ak\u0131m\u0131 nedir?<\/li>\n<li>hangi kesme de\u011feri ge\u00e7erlidir?<\/li>\n<li>tertibat\u0131n isim plakas\u0131nda hangi SCCR de\u011ferini ta\u015f\u0131mas\u0131 gerekir?<\/li>\n<li>ar\u0131za durumlar\u0131nda yukar\u0131 ve a\u015fa\u011f\u0131 ak\u0131m cihazlar\u0131 nas\u0131l etkile\u015fir?<\/li>\n<\/ul>\n<p>ABD devre kesici standard\u0131 tart\u0131\u015fmalar\u0131n\u0131n neden do\u011fal olarak uygulama sayfalar\u0131na ba\u011fland\u0131\u011f\u0131 da budur. <a href=\"https:\/\/test.viox.com\/tr\/circuit-breaker-ratings-icu-ics-icw-icm\/\">Devre Kesici De\u011ferleri: Icu, Ics, Icw ve Icm<\/a>, \u0130simlendirme kurallar\u0131 IEC ve UL uygulamalar\u0131nda ayn\u0131 olmasa bile.<\/p>\n<h2>Bu Konuda NEC'in En \u00c7ok \u00d6nem Ta\u015f\u0131d\u0131\u011f\u0131 Yerler<\/h2>\n<p>M\u00fchendisler UL 489, UL 1066, NEMA AB ve NEC'i kar\u015f\u0131la\u015ft\u0131rd\u0131\u011f\u0131nda, NEC genellikle \u015fu alanlarda en \u00e7ok \u00f6nem ta\u015f\u0131r:<\/p>\n<ul>\n<li>a\u015f\u0131r\u0131 ak\u0131m koruma kurallar\u0131<\/li>\n<li>ekipman uygulama s\u0131n\u0131rlar\u0131<\/li>\n<li>kurulum y\u00f6ntemi<\/li>\n<li>listeleme ve etiketleme uyumlulu\u011fu<\/li>\n<li>panolar, \u015falt cihazlar\u0131 veya motor sistemleri ile koordinasyon<\/li>\n<\/ul>\n<p>\u00d6rne\u011fin, NEC uygulama kurallar\u0131, bir ekipman ba\u011flam\u0131nda ge\u00e7erli olan bir kesicinin neden otomatik olarak ba\u015fka bir ba\u011flamda ge\u00e7erli kabul edilemeyece\u011fini a\u00e7\u0131klamaya yard\u0131mc\u0131 olur.<\/p>\n<p>Oda\u011f\u0131n\u0131z kesici uygulama de\u011ferleri ve koordinasyon dilindeyse, <a href=\"https:\/\/test.viox.com\/tr\/circuit-breaker-ratings-icu-ics-icw-icm\/\">Devre Kesici De\u011ferleri: Icu, Ics, Icw ve Icm<\/a> faydal\u0131 bir tamamlay\u0131c\u0131 okumad\u0131r.<\/p>\n<h2>Bu Standartlar\u0131 Spesifikasyon \u00c7al\u0131\u015fmas\u0131nda Kullanman\u0131n Pratik Bir Yolu<\/h2>\n<p>ABD pazar\u0131nda bir kesici spesifikasyonu yazarken veya incelerken, pratik bir m\u00fchendislik i\u015f ak\u0131\u015f\u0131 \u015f\u00f6yledir:<\/p>\n<h3>Ad\u0131m 1. Kesici ailesini belirleyin<\/h3>\n<p>\u015eunu mu belirtiyorsunuz:<\/p>\n<ul>\n<li>panel veya besleyici kullan\u0131m\u0131 i\u00e7in kal\u0131pl\u0131 kasa kesici<\/li>\n<li>veya \u015falt cihaz\u0131 i\u00e7in al\u00e7ak gerilim g\u00fc\u00e7 devre kesicisi<\/li>\n<\/ul>\n<p>Bu tek karar genellikle sizi hemen UL 489 veya UL 1066'ya y\u00f6nlendirir.<\/p>\n<h3>Ad\u0131m 2. Tertibat ba\u011flam\u0131n\u0131 kontrol edin<\/h3>\n<p>Kesici nereye tak\u0131lacak:<\/p>\n<ul>\n<li>panosu<\/li>\n<li>\u015falt panosu<\/li>\n<li>\u015falt cihazlar\u0131<\/li>\n<li>\u00f6zel end\u00fcstriyel ekipman<\/li>\n<\/ul>\n<p>Ekipman ba\u011flam\u0131, kesicinin kendisi kadar \u00f6nemlidir.<\/p>\n<h3>Ad\u0131m 3. NEC uygulama gereksinimlerini kontrol edin<\/h3>\n<p>Do\u011fru \u015fekilde listelenmi\u015f bir kesici bile, kurulum tasar\u0131m\u0131 NEC gereksinimleriyle uyumlu de\u011filse yanl\u0131\u015f uygulanabilir.<\/p>\n<h3>Ad\u0131m 4. NEMA AB belgelerini kodun yerine de\u011fil, destek olarak kullan\u0131n<\/h3>\n<p>NEMA AB belgeleri, kal\u0131pl\u0131 kasa kesici anlay\u0131\u015f\u0131, bak\u0131m\u0131 ve uygulama ayr\u0131nt\u0131lar\u0131 i\u00e7in de\u011ferlidir, ancak NEC kurulum y\u00fck\u00fcml\u00fcl\u00fcklerinin yerini almazlar.<\/p>\n<h3>Ad\u0131m 5. Ar\u0131za ak\u0131m\u0131 ve de\u011fer beklentilerini onaylay\u0131n<\/h3>\n<p>ABD pazar\u0131nda bu, kesicinin ve tertibat\u0131n kurulum noktas\u0131nda mevcut ar\u0131za ak\u0131m\u0131 ko\u015fulunu, kesme gereksinimini ve SCCR beklentisini destekleyip destekleyemeyece\u011fini kontrol etmek anlam\u0131na gelir.<\/p>\n<h3>Ad\u0131m 6. Projenin yaln\u0131zca ABD'ye mi yoksa IEC'ye mi y\u00f6nelik oldu\u011funu sorun<\/h3>\n<p>Proje uluslararas\u0131 pazarlara da hizmet ediyorsa, m\u00fchendislerin genellikle \u015funlar\u0131 anlamas\u0131 gerekir: <strong>IEC 60947-1<\/strong> ve <strong>IEC 60947-2<\/strong> ABD \u00e7er\u00e7evesine g\u00f6re nerede yer al\u0131yorlar. Bunlar UL 489 veya UL 1066'n\u0131n do\u011frudan kopyalar\u0131 de\u011fildir, ancak al\u00e7ak gerilim \u015falt cihazlar\u0131 ve devre kesiciler i\u00e7in temel IEC taraf\u0131 referans noktalar\u0131d\u0131r.<\/p>\n<h2>M\u00fchendislerin ve Al\u0131c\u0131lar\u0131n Yapt\u0131\u011f\u0131 Yayg\u0131n Hatalar<\/h2>\n<h3>UL 489 ve UL 1066'y\u0131 ayn\u0131 cihaz kategorisini tan\u0131ml\u0131yormu\u015f gibi ele almak<\/h3>\n<p>\u00d6yle de\u011filler. Farkl\u0131 al\u00e7ak gerilim kesici ailelerini kapsarlar.<\/p>\n<h3>NEMA AB'yi tek ba\u015f\u0131na bir cevap olarak ele almak<\/h3>\n<p>Genellikle as\u0131l soru, hangi AB belgesini kastetti\u011finiz ve \u00fcr\u00fcn e\u015fde\u011ferli\u011fi, bak\u0131m k\u0131lavuzu veya belirli bir uygulama sorunu hakk\u0131nda m\u0131 konu\u015ftu\u011funuzdur.<\/p>\n<h3>NEC'in bir \u00fcr\u00fcn sertifikas\u0131 oldu\u011funu varsaymak<\/h3>\n<p>De\u011fildir. NEC, \u00fcr\u00fcn g\u00fcvenli\u011fi listesi de\u011fil, kurulum kodudur.<\/p>\n<h3>Mevcut ar\u0131za ak\u0131m\u0131n\u0131, kesme de\u011ferini veya SCCR'yi g\u00f6z ard\u0131 etmek<\/h3>\n<p>Bu, \u201cuyumlu\u201d bir spesifikasyonu saha sorununa d\u00f6n\u00fc\u015ft\u00fcrmenin en h\u0131zl\u0131 yollar\u0131ndan biridir.<\/p>\n<blockquote><p><strong>Uzman Saha Notu:<\/strong> Kesici yenileme incelemelerinde, en yayg\u0131n spesifikasyon hatalar\u0131ndan biri, yaln\u0131zca amper de\u011ferini ve \u00e7er\u00e7eve boyutunu e\u015fle\u015ftirirken tertibat\u0131n ar\u0131za ak\u0131m\u0131 ba\u011flam\u0131n\u0131 g\u00f6z ard\u0131 etmektir. Ka\u011f\u0131t \u00fczerinde de\u011fi\u015ftirme e\u015fde\u011fer g\u00f6r\u00fcnebilir. Sahada, \u015falt panosu veya panel SCCR'si art\u0131k mevcut ar\u0131za ak\u0131m\u0131 veya ama\u00e7lanan kesici ailesiyle d\u00fczg\u00fcn bir \u015fekilde e\u015fle\u015fmedi\u011finde sorun ortaya \u00e7\u0131kar.<\/p><\/blockquote>\n<h3>Yaln\u0131zca ak\u0131m de\u011ferine g\u00f6re se\u00e7im yapmak<\/h3>\n<p>ABD uygulamas\u0131nda, kesici ailesi, tertibat ba\u011flam\u0131, listeleme yolu ve kod uygulamas\u0131, yaln\u0131zca amper de\u011fil, karar\u0131n bir par\u00e7as\u0131d\u0131r.<\/p>\n<h3>Her \u201cUL kesici\u201d sorusunun UL'de durdu\u011funu varsaymak<\/h3>\n<p>Bir\u00e7ok ger\u00e7ek projede, tam yan\u0131t ayr\u0131ca NEC uygulama kurallar\u0131n\u0131, NEMA k\u0131lavuzunu, IEEE C37 ba\u011flam\u0131n\u0131 ve bazen sertifika kabul\u00fcn\u00fcn arkas\u0131ndaki OSHA NRTL tan\u0131ma \u00e7er\u00e7evesini de i\u00e7erir.<\/p>\n<h2>S\u0131k\u00e7a Sorulan Sorular<\/h2>\n<h3>UL 489, UL 1066 ile ayn\u0131 \u015fey midir?<\/h3>\n<p>UL 489, kal\u0131pl\u0131 kasa devre kesici ailesi i\u00e7in ge\u00e7erliyken, UL 1066, muhafazalarda kullan\u0131lan al\u00e7ak gerilim g\u00fc\u00e7 devre kesicileri i\u00e7in ge\u00e7erlidir.<\/p>\n<h3>NEMA AB 1, UL 489'dan farkl\u0131 m\u0131d\u0131r?<\/h3>\n<p>Tarihsel olarak, kal\u0131pl\u0131 kasa kesici ba\u011flam\u0131nda yak\u0131ndan uyumluydular. Bununla birlikte, mevcut Kuzey Amerika uygulamas\u0131nda, m\u00fchendisler genellikle kal\u0131pl\u0131 kasa kesici \u00fcr\u00fcn \u00e7er\u00e7evesini \u015fu \u00fc\u00e7l\u00fc ulusal uyum yoluyla anlarlar: <strong>UL 489 \/ CSA C22.2 No. 5 \/ NMX-J-266-ANCE<\/strong>, AB 1, standartlar ge\u00e7mi\u015finin ve belge ailesinin bir par\u00e7as\u0131 olarak daha kullan\u0131\u015fl\u0131d\u0131r.<\/p>\n<h3>NEC, devre kesiciler i\u00e7in UL standartlar\u0131n\u0131n yerini al\u0131r m\u0131?<\/h3>\n<p>Hay\u0131r. NEC kurulum ve uygulamay\u0131 y\u00f6netir. UL standartlar\u0131, \u00fcr\u00fcn g\u00fcvenli\u011fi ve sertifikasyon kategorilerini y\u00f6netir.<\/p>\n<h3>MCCB'ler i\u00e7in hangi standart daha \u00f6nemlidir?<\/h3>\n<p>ABD d\u00fc\u015f\u00fck gerilim uygulamalar\u0131nda, kompakt \u015falterler \u00f6ncelikle UL 489 \/ NEMA AB 1 \u00e7er\u00e7evesi ile ili\u015fkilendirilir.<\/p>\n<h3>\u015ealt cihazlar\u0131ndaki al\u00e7ak gerilim g\u00fc\u00e7 kesicileri i\u00e7in hangi standart daha \u00f6nemlidir?<\/h3>\n<p>Bu noktada UL 1066 daha ilgili \u00fcr\u00fcn standard\u0131 \u00e7er\u00e7evesi haline gelir.<\/p>\n<h3>ANSI, IEEE, NEMA, UL ve NEC aras\u0131ndaki ili\u015fki nedir?<\/h3>\n<p>ANSI, Amerikan Ulusal Standartlar\u0131 i\u00e7in koordinasyon ve onay katman\u0131d\u0131r. IEEE ve NEMA, standart geli\u015ftirme yollar\u0131d\u0131r. UL, \u00fcr\u00fcn standartlar\u0131 ve \u00fcr\u00fcn sertifikasyon faaliyetleri ile ili\u015fkilidir. NFPA, NEC'yi yay\u0131nlar ve NEC, \u00fcr\u00fcn listelemesinden ziyade kurulum ve uygulamay\u0131 y\u00f6netir.<\/p>\n<h2>Son Tavsiye<\/h2>\n<p>Bu makaleden yaln\u0131zca bir \u015fey hat\u0131rlayacaksan\u0131z, bu olsun:<\/p>\n<ul>\n<li><strong>UL 489<\/strong> = kal\u0131pl\u0131 kasa kesici d\u00fcnyas\u0131<\/li>\n<li><strong>UL 1066<\/strong> = al\u00e7ak gerilim g\u00fc\u00e7 kesici d\u00fcnyas\u0131<\/li>\n<li><strong>NEMA AB<\/strong> = kal\u0131pl\u0131 kasa kesici belge ailesi<\/li>\n<li><strong>IEEE C37<\/strong> = g\u00fc\u00e7 \u015falt cihaz\u0131 ve g\u00fc\u00e7 kesici standartlar\u0131 ailesi<\/li>\n<li><strong>NEC<\/strong> = kurulum ve uygulama kodu<\/li>\n<\/ul>\n<p>Bu roller net bir \u015fekilde ayr\u0131ld\u0131\u011f\u0131nda, ABD kesici se\u00e7imi yorumlamak \u00e7ok daha kolay hale gelir.<\/p>\n<p>Biti\u015fik konular i\u00e7in devam edin:<\/p>\n<ul>\n<li><a href=\"https:\/\/test.viox.com\/tr\/mccb\/\">MCCB'N\u0130N<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/tr\/acb\/\">ACB<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/tr\/full-guide-to-molded-case-circuit-breakers-mccbs\/\">Kal\u0131pl\u0131 Kutulu Devre Kesiciler (MCCB'ler) i\u00e7in Tam K\u0131lavuz<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/tr\/complete-guide-to-air-circuit-breakers-acb\/\">Hava Devre Kesiciler (ACB) i\u00e7in Tam K\u0131lavuz<\/a><\/li>\n<\/ul>\n<\/div>\n<div class=\"simg-pop-btn\" style=\"top: 94.875px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 94.875px; left: 14px; display: none;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>An engineer reviewing US low-voltage circuit breaker standards and documentation in a switchgear facility. If you work with low-voltage circuit breakers in the United States, the hardest part is often not the breaker itself. It is figuring out who does what in the standards system. People see names like: ANSI IEEE NEMA UL NFPA UL [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":23339,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-23338","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/posts\/23338","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/comments?post=23338"}],"version-history":[{"count":1,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/posts\/23338\/revisions"}],"predecessor-version":[{"id":23340,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/posts\/23338\/revisions\/23340"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/media\/23339"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/media?parent=23338"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/categories?post=23338"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/tags?post=23338"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}