支管喷头数，轻危险级、中危险级场所不应超过8只 [课程编码2018] [课程编码2018]

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自动喷水灭火系统设计规范 [附条文说明] GB50084-2017_{xiuwxmjimcipqvwtdnslcfyyc}

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轻量化在线查规范

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原文：8.0.8  配水管两侧每根配水支管控制的标准流量洒水喷头数量，轻危险级、中危险级场所不应超过8只，同时在吊顶上下设置喷头的配水支管，上下侧均不应超过8只。严重危险级及仓库危险级场所均不应超过6只。sxdyzzgxfsfirbuqofdchespwogvminx
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条文说明：_{xiuwxmjimcipqvwtdnslcfyyc}
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8.0.8、8.0.9  这两条是对原条文的修改和补充。pzbpydrmvrldoc

    控制配水管道上设置的喷头数以及限制各种直径管道控制的喷头数，目的是为了控制配水支管的长度，保证系统的可靠性和尽量均衡系统管道的水力性能，避免水头损失过大，国外标准也有类似规定(表9)。需要说明的是，这两条仅适用于标准流量洒水喷头，当采用其他类型喷头时，管道的直径仍应通过水力计算确定。liuhblbxqvxbuzclmegovyxurinzarwcxgodljbv

表9  国外标准中管道估算汇总表excwpzqjjgioancrmiopkjkemflmsdjjwmmogiqntfwtrvjr

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规范附录：pebjqnibaswpazbnjislslrchssxtofnllaozlvjcinjpfcql

附录A  设置场所火灾危险等级分类moqycxwfsobeiaxirlnokwwlu

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表A  设置场所火灾危险等级分类rydicchmyhoil

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    注：表中的A组、B组塑料橡胶的分类见本规范附录B。_{nqjoycbeitdpiimjevqottzhyxcodyvkdajbmp}

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