涵盖住宅、商业和工业建筑中大多数电气装置中使用的插头、插座和壁板。增加了两种新配置，以提高IT和数据中心应用程序的安全性，并修改了一种配置。在线版本中包括一个新的导航工具，允许从目录转到三个主要布线设备配置类别中的每一个的选择图表。

Covers the plugs, receptacles, and wall plates used in most electrical installations in residential, commercial, and industrial buildings. Two new configurations were added to offer increased safety for IT and datacenter applications and one configuration was modified.Included in the online version is a new navigation tool that allows one to go from the Table of Contents to the selection chart for each of the three main wiring devices configuration categories.