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Metering Issues for Residential Fire Sprinkler Applications 住宅消防喷淋应用中的计量问题
发布日期: 2008-11-01
本powerpoint演示文稿首先简要概述了成立的住宅消防仪表工作组 三年前由标准委员会#380成立 调查住宅火灾自动喷水灭火器(RFS)计量问题。这个工作组是 现在,在两个基本问题上苦苦挣扎: RFS应用是否需要新的AWWA仪表标准 规定; 如果是,应该有什么技术要求 包括?为了收集关于这一主题的进一步信息 工作组在委员会上写了一篇文章 2008年4月期刊的连接部分 奥瓦。本文就三个备选方案征求意见 关于RFS计量的立场包括: 洒水器供应支路不应计量; 洒水器供应支路应使用 常规/标准水表; 和 洒水器供应支路应使用 专门为RFS应用而设计的特殊仪表 (并要求制定新的仪表标准规定)。消防喷淋装置的基本安装要求如下: 国家消防协会发布 (NFPA)标准。介绍了NFPA 13D系统的一般属性,NFPA 13D具有水的首选配置 供应和管道-A-2-2(A)。为了推广13D系统的使用,建筑规范 行政官员和市政当局已经提出 降低RFS净成本的激励措施 安装(又名权衡、权衡、设计) 自由,设计选择)。介绍了亚利桑那州斯科茨代尔和马里兰州乔治王子县的实际RFS现场经验。根据NFPA 13D的计量考虑 提供了要求和实际现场经验。
This powerpoint presentation begins by providing a brief overview of the Residential Fire Service Meter Task Group that was formed three years ago by Standards Committee #380, to investigate residential fires sprinkler (RFS) metering issues. This Task Group is now struggling over two basic issues: do RFS applications require new AWWA meter standards provisions; and if so, what technical requirements should be included? To gather further information on this subject, this task group wrote an article in the Committee Connection section of the April 2008 Journal AWWA. This article asks for comments on three alternative positions regarding RFS metering that include the following: the sprinkler supply branch should not be metered; the sprinkler supply branch should be metered with a conventional/standard water meter; and, the sprinkler supply branch should be metered with special meters, specifically designed for RFS applications (and requiring new meter standards provisions). Basic fire sprinkler installation requirements are given in National Fire Protection Association (NFPA) standards. General attributes of NFPA 13D systems are presented, NFPA 13D has a preferred arrangement for water supply and plumbing - A-2-2(a). To promote the use of 13D systems, Building Code Administrators and municipalities have offered incentives to reduce the net cost of RFS installations (a.k.a. trade-offs, trade-ups, design freedoms, design alternatives). Actual RFS field experiences are presented for Scottsdale, Arizona and Prince George's County, Maryland. Metering considerations in light of NFPA 13D requirements and actual field experiences are provided.
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发布单位或类别: 美国-美国给水工程协会
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