TusNFPA 750 (2019) Cov Qauv Rau Dej Kob Hluav Taws Kub Tiv Thaiv Lub Tshuabyog cov txheej txheem tshaj tawm los ntawm National Cov Kev Tiv Thaiv Hluav Taws Xob tsis haum .
Cov yam ntxwv tseem ceeb ntawm NFPA 750 (2019):
{1. hom phiaj: Ua kom cov chav kawm tsis sib haum xeeb (Ehy} Cov chaw nyob), thiab Chav C (Hluav Taws Xob
{{02. Cov lus txhais ntawm cov dej Mist: tee nrog 99% ntawm cov ntim (DV0}}}}} micrersion (1 hli) hauv lub taub. Tshuab cais los ntawm siab: tsis tshua muaj siab (< 12.1 bar / 175 psi), Intermediate pressure (12.1–34.5 bar / 175–500 psi), High pressure (>34 {.} 5 bar / 500 psi).
{{03. Cov Tswv Yim Ua Haujlwm: Ua raws li cov khoom siv hluav taws xob, tso dej rau cov roj ntsha ua kom tiav ntws, thiab ntev mus rau dedpress fires (e . g}}}}}} .
4. Daim ntawv thov: Haum rau cov kev phom sij tshwj xeeb (E {} Cov khoom siv hluav taws xob)} {3 {{{{{}}
{{0 5. kev nyab xeeb thiab kev sib koom ua ke nrog kev txhawj xeeb hauv kev tawm tsam (E {} {{{{4 4}}
{{06. Kev Txhim Kho & Kev Saib Xyuas NFPA 25}} {}, Flow}
Vim li cas nws tseem ceeb:
Dej Mist lub tshuab yog qhov zoo rau cov chaw nkag siab (e {}} Kev txuag .
Rau kev ua raws cai tag nrho, enstallers thiab installers yuav tsum ua raws li cov qauv kev ua haujlwm thiab cov ntaub ntawv ntsig txog NFPA 25 (txij nkawm) .