NFPA20 -2016
Chapter 1 Administration
一碗汤圆简笔画1.1.1This standard deals with the lection and installation of pumps supplying liquid for private fire protection.
本标准适用于私人消防泵的选择和安装。
1.1.2 The scope of this document shall include liquid supplies; suction, discharge, and auxiliary equipment; power supplies, including power supply arrangements; electric drive and control; diel engine drive and control; steam turbine drive and control; and acceptance tests and operation.
本规范适用于个人消防的液体提供；吸入，压出和辅助设备；能源提供，包括能源配置；电动机和控制；柴油驱动和控制；蒸汽透平驱动和控制；以及验收和操作。
1.1.3 This standard does not cover system liquid supply capacity and pressure requirements, nor does it cover requirements for periodic inspection, testing, and maintenance of fire pump systems.
本规范不包括所提供液体的水量和压力的要求，也不包括消防泵系统的定期检修、测试和维护要求。
1.2 Purpo. The purpo of this standard is to provide a reasonable degree of protection for life and property from fire through installation requirements for stationary pumps for fire protection bad upon sound
engineering principles, test data, and field experience.
本标准的目的是通过健全的工程安装、测试和资深的工程经验来制定固定泵的安装要求，从而为火灾中人身和财产安全提供合理的消防保护。
1.3 Application.应用
1.3.1 This standard shall apply to centrifugal single-stage and multistage pumps of the horizontal or vertical shaft design and positive displacement pumps of the horizontal or vertical shaft design.
本标准适用于卧式或立式单级离心泵，或卧式或立式容积式泵。
1.3.2 Requirements are established for the design and installation of single-stage and multistage pumps, pump drivers, and associated equipment.
制定了单级和多级泵、泵的驱动设备和附属设备的设计和安装要求。
管理层
1.4 Retroactivity. The provisions of this standard reflect a connsus of what is necessary to provide an acceptable degree of protection from the hazards addresd in this standard at the time the standard was issued.
1.4 可追溯性本规范规定了自颁布之日起，应该在火灾中提供何种可接受程度的保护。
1.4.1 Unless otherwi specified, the provisions of this standard shall not apply to facilities, equipment, structures, or installations that existed or were approved for construction or installation prior to the effective date of the standard. Where specified, the provisions of this standard shall be
考核评估
retroactive.
除非另有规定，本标准的规定不适用于已经存在或正在批准建设或先于标准的生效日期安装的设施，设备，结构或装置。当有规定时，本标准应追溯使用。
1.4.2 In tho cas where the authority having jurisdiction determines that the existing situation prents an unacceptable degree of risk, the authority having jurisdiction shall be permitted to apply retroactively any portions of this standard deemed appropriate.
当权威机构确认目前存在不可接受风险的情况下，允许该机构追溯本标准中的任何认为合适的部分。
1.4.3 The retroactive requirements of this standard shall be permitted to be modified if their application clearly would be impractical in the judgment of the authority having jurisdiction, and only where it is clearly evident that a reasonable degree of safety is provided.
当权威机构判定该应用明显不可行并且能够提供一个显而易见的合理的安全保护程度时，本标准的要求追溯性应允许进行修改。
1.5 Equivalency. Nothing in this standard is intended to prevent the u of systems, methods, or devices of equivalent or superior quality, strength, fire resistance, effectiveness, durability, and safety over tho prescribed by this standard.
1.5等效性.本标准并不阻止使用质量、强度、耐火性、有效性、耐久性和安全性更好的系统、方法或装置。
小人是什么意思
1.5.1 Technical documentation shall be submitted to the authority having jurisdiction to demonstrate equivalency.
应向权威机构提交技术文件以证明等效性。
1.5.2 The system, method, or device shall be approved for the intended purpo by the authority hav
ing jurisdiction.
用于预期目的的系统、方法和装置应经权威机构批准。
Chapter 3 Definitions
3.1General. The definitions contained in this chapter shall apply to the terms ud in this standard. Where terms are not defined in this chapter or within another chapter, they shall be defined using their ordinarily accepted meanings within the context in which they are ud. Merriam-Webster’s Collegiate Dictionary, 11th edition, shall be the source for the ordinarily accepted meaning.
班主任工作内容
本章中含有的定义应适用于本标准中的术语。当本章或其他章节中没有定义术语时，应在文中使用的地方用通常可接受的含义（出自梅里亚姆-韦伯斯特大学字典，第11版）进行定义。脆皮黄瓜
3.2 NFPA Official Definitions
3.2.1 Approved. Acceptable to the authority having jurisdiction.
经批准的：经权威机构接受的。
3.2.2 Authority Having Jurisdiction (AHJ). An organization, office, or individual responsible for enforcing the requirements of a code or
standard, or for approving equipment, materials, an installation, or a procedure.西湖牛肉羹的正宗做法
3.2.2 权威机构：负责强制执行规范或标准要求或批准设备、材料、安装和过程的机构。
3.2.3 Listed. Equipment, materials, or rvices included in a list published by an organization that is acceptable to the authority having jurisdiction and concerned with evaluation of products or rvices, that maintains periodic inspection of production of listed equipment or materials or periodic evaluation of rvices, an who listing states that either the equipment, material, or rvice meets appropriate designated standards or has been tested and found suitable for a specified purpo. 3.2.3标注的：已经贴上权威机构认可的，并且和产品评价相关的某一机构的标签、符号或其他识别标志的装备或材料。该机构维持对已经注册的设备或材料的生产进行定期检查，并且通过标注厂商在某种意义上表明其符合相应标准或性能。
公益众筹3.2.4 Shall. Indicates a mandatory requirement. 应：指出一种强制性要求。
3.2.5 Should. Indicates a recommendation or that which is advid but not required.宜：表示推荐或建议的，但不是要求的。
3.3.6 Break Tank. A tank providing suction to a fire pump who capacity is less than the fire protection demand (flow rate times flow duration)
