UL 555防火閥 – 標(biāo)準(zhǔn)名稱
UL 555：Fire Dampers
UL 555：防火閥
UL 555防火閥 – 適用范圍
本標(biāo)準(zhǔn)適應(yīng)于預(yù)計(jì)安裝在這些地方的防火閥，如穿墻或埋入墻體、隔板開(kāi)口處的管道、隔墻的空氣輸送開(kāi)口處以及美國(guó)國(guó)家防火協(xié)會(huì)(NFPA)在《空調(diào)和通風(fēng)系統(tǒng)安裝標(biāo)準(zhǔn)90A》中提到的延伸穿過(guò)地板的管道。防火閥必須按照規(guī)范安裝，如官方建筑師與規(guī)范管理人員協(xié)會(huì)( Building Officials and Code AdministratorsBOCA)國(guó)家機(jī)械器具條款、南方建筑物規(guī)范國(guó)際協(xié)商會(huì)(Southern Building Code Conference InternationalSBCCI)標(biāo)準(zhǔn)機(jī)械條款、商業(yè)機(jī)會(huì)互通理事會(huì)(Interracial Council for Business Opportunities ICBO)統(tǒng)一機(jī)械條款以及國(guó)際機(jī)械器具條款等裝設(shè)標(biāo)準(zhǔn)來(lái)使用。
The fire dampers covered by these requirements are intended for installation in accordance with the National Fire Protection Association Standard for Installation of Air-Conditioning and Ventilating Systems, NFPA 90A, the International Mechanical Code and the Uniform Mechanical Code.
