https://selvi.org/blog/ NFPA, BS EN 12845 ve FM Global standartları üzerine Türkçe yangın mühendisliği rehberleri. tr-TR © 2026 Fatih Selvi selvi.org static https://selvi.org/blog/en12845/en12845-yer-alti-yer-ustu-boru-isleri.html https://selvi.org/blog/en12845/en12845-yer-alti-yer-ustu-boru-isleri.html DI, HDPE, çelik boru seçimi; donma hattı, thrust block, korozyon koruması ve saha pratiği. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-depolama-konfigurasyonu-st1-st6.html https://selvi.org/blog/en12845/en12845-depolama-konfigurasyonu-st1-st6.html EN 12845 Madde 6.3.2 ve 7.2'de tanimlanan ST1-ST6 depolama konfigurasyonlari ve koruma yaklasimlari. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/cmsa-tasarim-kriter-detay.html https://selvi.org/blog/en12845/cmsa-tasarim-kriter-detay.html CMSA detayli tasarim. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-minimum-boru-caplari.html https://selvi.org/blog/en12845/en12845-minimum-boru-caplari.html EN 12845 Tablo 36 fully calculated minimumları, pre-calc tablo değerleri ve çelik B/C tipi ile galvaniz iç çap farkları. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/obstruction-esfr-desarj-engel.html https://selvi.org/blog/en12845/obstruction-esfr-desarj-engel.html Obstruction kurallari ve cozumler. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-gizli-hacim-boru-isi.html https://selvi.org/blog/en12845/en12845-gizli-hacim-boru-isi.html Asma tavan üstü, çift döşeme altı, çatı boşluğu sprinkler kuralları. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-yapisal-elemanlar-kiris-tavan.html https://selvi.org/blog/en12845/en12845-yapisal-elemanlar-kiris-tavan.html Acik kiris vs kapali tavan, Sekil 9-10 kiris-deflektor mesafesi, Madde 12.4.7 ucuncu bay kurali, cati makasi flans genisligi ve profil tavan yerlesim hatalari. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-boru-destekleri-aralik-tasarim.html https://selvi.org/blog/en12845/en12845-boru-destekleri-aralik-tasarim.html Madde 17.2 askı aralığı, Tablo 40 yük kapasitesi, dübel boyu, düşey boru desteği ve sismik pratik. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-sprinkler-max-koruma-alani.html https://selvi.org/blog/en12845/en12845-sprinkler-max-koruma-alani.html LH 21 m², OH 12 m², HHP/HHS 9 m². Sidewall icin ayri tablo, engelli alanlarda azaltma, 12×18 m oda hesap ornegi. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-su-kaynagi-secimi-tekli-ikiz-kombine.html https://selvi.org/blog/en12845/en12845-su-kaynagi-secimi-tekli-ikiz-kombine.html EN 12845 Madde 9.6 — single, superior single, duplicate, combined kaynak seçimi; tehlike sınıfına göre öneriler. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-block-plan-tabela-isaretleme.html https://selvi.org/blog/en12845/en12845-block-plan-tabela-isaretleme.html Sprinkler block plan, zon tabelası, valf işaretleme, itfaiye levhası kuralları. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-pre-calculated-hhp-hhs-tasarim.html https://selvi.org/blog/en12845/en12845-pre-calculated-hhp-hhs-tasarim.html Madde 13.3.5 cercevesinde yuksek tehlike pre-calc boyutlandirma, Tablo 32-35 ve fully-calc'a zorunlu gecis durumlari. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-annex-p-esfr-12845-1.html https://selvi.org/blog/en12845/en12845-annex-p-esfr-12845-1.html Annex P ESFR bilgi. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-annex-g-bos-palet-depolama.html https://selvi.org/blog/en12845/en12845-annex-g-bos-palet-depolama.html Ahşap ve plastik palet depolama tasarım kuralları. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-yillik-3-yillik-10-yillik-rutin.html https://selvi.org/blog/en12845/en12845-yillik-3-yillik-10-yillik-rutin.html Yıllık pompa flow testi, 3 yıllık tank ve valf overhaul, 10 yıllık tank temizliği. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-aylik-rutin.html https://selvi.org/blog/en12845/en12845-aylik-rutin.html Dizel pompa akü ve kontrol paneli batarya kontrolü; elektrolit yoğunluğu, su seviyesi, şarj akımı. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-yas-borulu-wet-pipe-tesisat.html https://selvi.org/blog/en12845/en12845-yas-borulu-wet-pipe-tesisat.html EN 12845'in varsayılan tesisat tipi: yaş borulu. Sürekli basınçlı su, en hızlı tepki, 4 °C alt sınır ve dondan kırılan tesisatların saha hikâyesi. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-minimum-sprinkler-desarj-basinci.html https://selvi.org/blog/en12845/en12845-minimum-sprinkler-desarj-basinci.html LH 0,7 bar, OH 0,35 bar, HHP/HHS 0,5 bar; in-rack icin 1-2 bar. En gayri musait sprinkler kuralinin saha karsiligi. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-2-genel-bakis.html https://selvi.org/blog/en12845/en12845-2-genel-bakis.html Yeni Avrupa standardı ESFR ve CMSA sprinkler tasarımı. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-sprinkler-debisi-k-faktor.html https://selvi.org/blog/en12845/en12845-sprinkler-debisi-k-faktor.html K57, K80, K115, K160, K200, K240, K280, K320, K360 — EN notasyonu, Q=K√P SI formulu, tehlike sinifi-K secimi ve NFPA dönüsüm tablosu. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-pre-action-tesisat.html https://selvi.org/blog/en12845/en12845-pre-action-tesisat.html EN 12845 Madde 11.4 pre-action tesisat: Type A vs Type B, EN 54 dedektor entegrasyonu, veri merkezi ve muze uygulamalari, saha hatalari. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-sprinkler-guard-su-kalkani-rozet-korozyon.html https://selvi.org/blog/en12845/en12845-sprinkler-guard-su-kalkani-rozet-korozyon.html EN 12845 Madde 14.6-14.9 kapsaminda guard, su kalkani, rozet ve korozyon kaplamalarinin saha uygulamasi. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-light-hazard-lh-tasarim.html https://selvi.org/blog/en12845/en12845-light-hazard-lh-tasarim.html EN 12845 LH: 2,25 mm/dk x 84 m², K57 sprinkler, sadece yaş borulu. Pre-calculated yaklaşım ve hidrolik örnek. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-annex-q-periyodik-sistem-muayenesi.html https://selvi.org/blog/en12845/en12845-annex-q-periyodik-sistem-muayenesi.html Madde 21 + Annex Q yıllık periyodik inceleme: yetkili kişi, sapma listesi, kapasite yeniden değerlendirme. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-pompa-kontrolor-izleme.html https://selvi.org/blog/en12845/en12845-pompa-kontrolor-izleme.html İki bağımsız basınç şalteri, manuel-only stop, dört zorunlu izleme sinyali ve Annex I alarm seviyeleri. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-nedir-kapsam-nfpa-farklari.html https://selvi.org/blog/en12845/en12845-nedir-kapsam-nfpa-farklari.html EN 12845 sprinkler standardının kapsamı, versiyonlama ve NFPA 13 ile saha-pratiği farkları. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-operasyon-alani-sekli-konumu.html https://selvi.org/blog/en12845/en12845-operasyon-alani-sekli-konumu.html 1,2×√A dikdörtgen kuralı, hidrolik en uzak sprinkler grubu, koridor sprinkleri ve çoklu zon birleşim noktaları için saha rehberi. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-hh-isgal-ara-seviye-sprinkler.html https://selvi.org/blog/en12845/en12845-hh-isgal-ara-seviye-sprinkler.html EN 12845 Madde 12.5 ışığında HH (yüksek tehlike) işgallerde ara seviye sprinkler kuralları: tetikleyiciler, dikey/yatay aralık, su kalkanı ve hidrolik birleşik hesap. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-sehir-sebekesi-town-main.html https://selvi.org/blog/en12845/en12845-sehir-sebekesi-town-main.html Town main bağlama koşulları, basınç-debi testi, idare garantisi, backflow ve Türkiye saha pratiği. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-emme-kosullari-emme-borusu.html https://selvi.org/blog/en12845/en12845-emme-kosullari-emme-borusu.html EN 12845 Madde 10.6.2: emme borusu min cap, eksantrik reduksiyon, foot valve, vortex breaker, hava cebi onleme. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-annex-j-sistem-kapali-onlemler.html https://selvi.org/blog/en12845/en12845-annex-j-sistem-kapali-onlemler.html Impairment, etiket, yangın nöbeti, sigortacı bildirim. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-annex-g-aerosol-depolama.html https://selvi.org/blog/en12845/en12845-annex-g-aerosol-depolama.html Aerosol level 1/2/3, in-rack sprinkler, deflagration. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-hhp-high-hazard-process-tasarim.html https://selvi.org/blog/en12845/en12845-hhp-high-hazard-process-tasarim.html EN 12845 HHP siniflari, yogunluk-alan tablosu, K-faktor secimi, HHP-4 deluge istisnasi ve NFPA Extra Hazard ile karsilastirma. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/esfr-cmsa-yerlesim-clearance.html https://selvi.org/blog/en12845/esfr-cmsa-yerlesim-clearance.html Yerlesim, deflektor, clearance kurallari. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-boru-surtunme-kaybi-hazen-williams.html https://selvi.org/blog/en12845/en12845-boru-surtunme-kaybi-hazen-williams.html EN 12845 Madde 13.2.1'in Hazen-Williams formülü, C tablosu ve DN50 hesap örneği. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-ceyreklik-yari-yillik-rutin.html https://selvi.org/blog/en12845/en12845-ceyreklik-yari-yillik-rutin.html 13 hafta + 6 ay aralıklı sprinkler bakım kalemleri, sahada en sık atlanan noktalar. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-sprinkler-sicaklik-rating.html https://selvi.org/blog/en12845/en12845-sprinkler-sicaklik-rating.html Ortam + 30 °C marj, EN 12259-1 renk kodları, çatı altı 93 °C, kazan dairesi 141 °C: saha pratiği ve hatalar. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/esfr-tasarim-kriter-detay.html https://selvi.org/blog/en12845/esfr-tasarim-kriter-detay.html ESFR detayli tasarim kriterleri. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-annex-g-dokunmamis-sentetik-kumas.html https://selvi.org/blog/en12845/en12845-annex-g-dokunmamis-sentetik-kumas.html Nonwoven, akrilik, PP rulo depolama tasarımı. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-sprinkler-arasi-min-mesafe.html https://selvi.org/blog/en12845/en12845-sprinkler-arasi-min-mesafe.html 2,0 m minimum, cold soldering, deflektor-tavan mesafesi ve duvar/kiris yaklasma kuralinin saha karsiligi. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-dizel-motor-pompa-setleri.html https://selvi.org/blog/en12845/en12845-dizel-motor-pompa-setleri.html EN 12845 Madde 10.9 dizel pompa setleri: guc payi, yakit, sogutma, egzoz, otomatik basit. Saha pratiginden notlar. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-su-kaynaklari-sure-sureklilik-don.html https://selvi.org/blog/en12845/en12845-su-kaynaklari-sure-sureklilik-don.html LH/OH/HHP/HHS su kaynagi sureleri, single-superior-duplicate sureklilik siniflari ve don koruma uygulamalari. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-annex-e-high-rise-ozel-gereksinim.html https://selvi.org/blog/en12845/en12845-annex-e-high-rise-ozel-gereksinim.html Basınç bölgeleri, yedek pompa, ayrı dikme ve tank yedekliliği. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-alternatif-alternate-tesisat.html https://selvi.org/blog/en12845/en12845-alternatif-alternate-tesisat.html Madde 11.3 cercevesinde mevsimsel cevrim, drenaj-pressurize prosedürü, %25 alan artisi ve donmus boruyla acilan kisa kuruyla karsilasmamak icin saha kuralari. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-pompa-odasi-gereksinimleri.html https://selvi.org/blog/en12845/en12845-pompa-odasi-gereksinimleri.html EN 12845 Madde 10.3: pompa odasi fiziksel altyapisi - havalandirma, drenaj, aydinlatma, kapi, dizel egzoz cikisi ve saha hatalari. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/depolama-disi-isgal-esfr-cmsa.html https://selvi.org/blog/en12845/depolama-disi-isgal-esfr-cmsa.html Karma bina sprinkler stratejisi. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-depolama-tanki-hacim-doldurma.html https://selvi.org/blog/en12845/en12845-depolama-tanki-hacim-doldurma.html EN 12845 Madde 9.3 sprinkler deposu: etkin hacim, doldurma suresi, anti-vortex ve emme bilezigi mesafeleri. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/hhs5-12-sprinkler-tasarimi.html https://selvi.org/blog/en12845/hhs5-12-sprinkler-tasarimi.html Yuksek depo tasarim cozumleri. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/cmda-cmsa-esfr-uc-mod-karsilastirma.html https://selvi.org/blog/en12845/cmda-cmsa-esfr-uc-mod-karsilastirma.html Uc sprinkler modunun karar matrisi. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi https://selvi.org/blog/en12845/en12845-tehlike-siniflari-lh-oh-hh.html https://selvi.org/blog/en12845/en12845-tehlike-siniflari-lh-oh-hh.html EN 12845 Madde 6 tehlike siniflandirmasi, saha ornekleri ve NFPA karsilastirmasi. EN 12845 Yazilari 25 Apr 2026 00:00:00 +0000 Fatih Selvi