NFPA70-2008标准规范下载简介

NFPA70-2008美国国家电气规范（英文版）.pdf简介：

NFPA 70-2008，全称为National Fire Protection Association 70: Standard for Electrical Installation Code，是美国国家消防协会颁发的一份电气安装标准，也被称为美国电气安装规范。这份标准提供了一系列关于建筑物和设施中电气系统的安装、布线、保护、操作和维护的指导原则，旨在保障公共安全，预防电气火灾和电击事故。

NFPA 70-2008包括了电气系统设计、布线材料选择、电气设备安装、防爆和防护措施、接地与防雷、电力供应和控制等多个方面的规定。它适用于住宅、商业、工业、公共设施等各种类型的电气安装工程。

该标准定期更新，2008年版是最后一次重大更新，之后有多个技术补充。NFPA 70是美国电气工程领域的重要参考标准，对电气工程人员、电工、建筑师、电气承包商以及相关政府部门有指导意义。

NFPA70-2008美国国家电气规范（英文版）.pdf部分内容预览：

David W. Johnson, CenTex IEC, TX [IM] (Alt. to W. B. Bowman) Kent Perkins, Recreation Vehicle Industry Association, VA [M] (VL to 550, 551, 552) (Alt. to B. A. Hopkins) Michael J. Slifka, PFS Corporation, WI [M] (VL to 550, 551, 552) (Alt. to J. Mikel) Raymond F. Tucker, Consulting Professional Engineer/RADCO, CA [RT] (VL to 545, 550, 551, 552) (Alt. to M. L, Zieman) Eugene W. Wirth, Underwriters Laboratories Inc., WA [RT (Alt. to T. R. Lichtenstein)

NEPA Electrical Engineering Division Technical Staff

Chai National Infrastructure Institute. NH [L

Committee Scope: This Committee shall have primary responsibility for documents on minimizing the risk of electricity as a source of electric shock and as a potential ignition source of fires and explosions. It shall also be responsible for text to minimize the propagation of fire and explosions due to electrical installations

JC∕T 638-2013 玻璃窑用低气孔率粘土砖ommitteeScope:ihisCommitteesnall Ior documents on minimizing the risk o electricity as a source of electric shock and as a potential ignition source of fires and explosions. It shall also be responsible for text to minimize the propagation of fire and explosions due to electrical installations.

Copyright National Fire P Protection Association

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NATIONAL ELECTRICAL CODE

ARTICLE 90INTRODUCTION

ational Electrical Code

2008Edition

2008Edition

90.1 Purpose

(A) Practical Safeguarding. The purpose of this Code is the practical safeguarding of persons and property from hazards arising from the use of electricity

A)Practical Safeguarding.The purpose of this Code e practical safeguarding of persons and property frd azards arising from the use of electricity

90.2 Scope.

90.2 Scope.

cal conductors, equipment, and raceways; signaling and

NATIONAL ELECTRICAL CODI

Figure 90.3 Code Arranger

Figure 90.3 Code Arrangement

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ARTICLE 90INTRODUCTION

90.5 Mandatory Rules, Permissive Rules, and Explana

(A) Mandatory Rules. Mandatory rules of this Code are those that identify actions that are specifically required on prohibited and are characterized by the use of the terms shall orshall not

FPN: The format and language used in this Code follows guidelines established by NFPA and published in the NEC Style Manual. Copies of this manual can be obtained from NFPA

0.6 ormity interpretation and application of the provisions of this

NATIONAL ELECTRICAL CODE

FPN No.1:See requirements in 110.3. FPN No. 2: Listed is defined in Article 100.

90.8 Wiring Planning

provided in this Code that the number of wires and circuits confinedina singleenclosurebevaryinglyrestricted. Limiting the number of circuits in a single enclosure minimizes the effects from a short circuit or ground fault inonecircuit

2008 Edition

NATIONAL ELECTRICAL CODE

ARTICLE 90INTRODUCTION

909 Units oiMeasurement

ARTICLE 100 Definitions

Accessible (as applied to equipment). Admitting close approach; not guarded by locked doors, elevation, or other effectivemeans

Approved. Acceptable to the authority having jurisdiction

ARTICLE 100DEFINITIONS

2022年一建市政文档、电子教材Chapter 1 General

Authority Having Jurisdiction (AHJ). An organization office, or individual responsible for enforcing the require ments of a code or standard, or for approving equipment. materials, an installation, or a procedure.

Bathroom. An area including a basin with one or more of the following: a toilet. a tub. or a shower

Bonded (Bonding). Connected to establish electrical

Bonding Jumper. A reliable conductor to ensure the re quired electrical conductivity between metal parts required to be electrically connected.

GB／T 40215-2021 气象观测装备编码规则.pdfBonding Jumper, Main. The connection between the grounded circuit conductor and the equipment grounding conductor at the service. Branch Circuit. The circuit conductors between the final overcurrent device protecting the circuit and the outlet(s). Branch Circuit, Appliance. A branch circuit that supplies energy to one or more outlets to which appliances are to be