Kuyini i-NFPA 22 Futhi Ubani Okufanele Ayilalele? Umhlahlandlela Wokuthobela Imigomo
Kwadalwa ngo Ngokwamukisa
Yini i-NFPA 22 Futhi Isebenza Kubani? Umhlahlandlela Wokuphatha Okudingekayo
I-NFPA 22, iStandard for Water Tanks for Private Fire Protection, yidokhumenti egunyaziwe eshicilelwe yiNational Fire Protection Association (NFPA). Ibeka izidingo ezingaphansi kakhulu zokuklama, ukwakhiwa, ukufakwa, kanye nokugcinwa kwamathangi amanzi nemishini esekelayo esetshenziselwa ukuvikelwa komlilo okuyimfihlo. Ngokuyisisekelo, uma indawo idinga ukuhlinzekwa ngamanzi okuzinikezele ukulwa nemililo (ngenxa yokucindezela kwamanzi kahulumeni okubuthakathaka noma indawo), i-NFPA 22 iyona "incwadi yemithetho" eqinisekisa ukuthi ukuhlinzekwa ngamanzi kuzosebenza lapho kudingeka khona.
1. Yini i-NFPA 22?
I-NFPA 22 akuwona nje umbhalo; kuyisidingo sokuphepha. Ixhumanisa isikhala phakathi kohlelo lokucisha umlilo (izifutho/ama-hydrant) nomthombo wamanzi. Umgomo wayo oyinhloko ukuqinisekisa ukwethembeka komthombo wamanzi. Ihlanganisa izinhlobo ezahlukene zamathangi—okuhlanganisa amathangi aphakeme aphuma ngamandla omkhathi, amathangi anomfutho, namathangi okudonsa asezingeni lomhlaba—futhi imisa ukuthi kufanele akhiwe kanjani ukuze amele izimo ezibangelwa imvelo (ezindaweni ezizamazamayo, umoya, kanye nokushisa).
2. Isebenza Kubani?
I-NFPA 22 isebenza kunoma yimuphi umnikazi wesakhiwo, umphathi wesikhungo, noma inkampani yobunjiniyela enesibopho somthombo wamanzi wangasese wokuvikela umlilo. Kubaluleke kakhulu kulabo abasezindaweni ezilandelayo:
● Izindawo Zezimboni Nezokuqala Izinto: Amafektri agcina izinto ezivutha kalula noma ahlanganisa indawo enkulu ngokuvamile adinga amanzi aningi angahlinzekwa yimigqa kamasipala.
● Izindawo Zokugcina Izimpahla Nezikhungo Zezokuthutha: Izindawo zokugcina izimpahla eziphakeme kakhulu ezidinga izifutho ezihlukahlukene zidinga lezi tanki ukuze kube nokucisha umlilo okusheshayo, okunamandla amakhulu.
● Izindawo Ezikude noma Ezisemakhaya: Izindawo ezitholakala kude nemigqa yamanzi kamasipala, imishayo yomlilo, noma izindunduma zamanzi zedolobha kumele zigcine isipele esizinikezele endaweni.
● Ingqalasizinda Ebalulekile: Izibhedlela, izikhungo zedatha, nezikhungo zamandla ezingakwazi ukubekezelela noma yikuphi ukubuyela emuva noma ukuphazamiseka ekuvikelweni komlilo, noma ngabe uhlelo lwedolobha luyehluleka.
● Izidingo Zomshwalense: Ngokuvamile, abashwalense (njenge-FM Global) bayala ukuthi izindawo zihlangane noma zidlule izindinganiso ze-NFPA 22 ukuze zifanelekele ukuthola umshwalense wezimpahla.
Umnikazi Wesithakazelo | Kungani i-NFPA 22 Ibalulekile Kubona |
Abaphathi Bezindawo | Kuqinisekisa ukuqhubeka kokusebenza kanye nokuthobela imithetho. |
Onjiniyela | Inikeza imihlahlandlela eyimpoqo yokuklama kanye nemingcele yokulayisha kwesakhiwo. |
Abanikazi Bezakhiwo | Ivikele izimpahla futhi igcina ukufaneleka komshwalense. |
Ohlola Imililo | Isebenza njengesisekelo esisemthethweni sezimvume zokuhlala nokuphoqelelwa kwemithetho yomlilo. |
3. Izinsika Eziyinhloko Zokuhambisana
Ukuze uhambisane ne-"NFPA 22", uhlelo lwakho lokugcina amanzi kumele lulandele izinsika ezintathu ezisebenzayo:
1. Ukuqina Kwesakhiwo: Ithangi kumele lakhiwe ukuze likwazi ukubhekana nesisindo salo, nesisindo samanzi, kanye namandla angaphandle njengomoya kanye nezinyikimo zomhlaba. Noma ngabe insimbi ebilokile, insimbi ebilotshiwe, noma ukhonkolo, kumele ihlangabezane namazinga athile ezinto ezisetshenziswayo (isib. AWWA D103 yensimbi ebilokile).
2. Ukuqina Kwamanzi: Ithangi kumele libe nosayizi ofanele ukuze lihlinzeke nge-"Net Usable Capacity". Lesi sibalo asibheki "amanzi afile" (amanzi phansi angakwazi ukudonswa yipampu ngenxa yokwakheka kwe-vortex) futhi siqinisekisa ukuthi ipampu yomlilo inokugeleza okwanele isikhathi esidingekayo (isib. imizuzu engu-60, 90, noma 120).
3. Ukulungela Okungazelelwe: Uhlelo kumele lube nezinto ezifakiwe ezidingekayo, njenge:
○ Amapuleti okuvimbela i-vortex: Ukuvimbela umoya ukuthi ungadonswa yipampu yomlilo.
○ Imipheme yophahla: Ukuvimbela ukuqhekeka lapho ithangi liphuma ngokushesha.
○ Ukuqapha: I-alamu yamanzi aphezulu/aphansi exhunywe kuphaneli ye-alamu yesakhiwo.
4. Kungani Kubalulekile?
Uma usezindaweni ezingaphansi komthetho ezamukela izindinganiso ze-NFPA, ukuthobela akukhethwa—kuyimfuneko yomthetho. Ngaphezu komthetho, injongo yangempela ye-NFPA 22 ukugwema ukwehluleka okukhulu kohlelo lokucisha umlilo ngesikhathi sokuphuthuma. Ithangi elingakhiwanga ngokwendlela lingahluleka ngaphansi kokudonswa ipompi yomlilo noma liyiqhwa ngesikhathi sezulu esibandayo, lishiye indawo engenakuzivikela ngesikhathi somlilo.
Ngabe njengamanje usezigabeni zokuhlela zesakhiwo esisha, noma ngabe uhlola uhlelo olukhona lokugcina amanzi omlilo ukuze kutholwe ukuthobela izindinganiso ezintsha?
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