本指南适用于三相电力公用系统，是IEEE Std C62的第一部分。92系列。本部分提供了适用于电力设施系统所有类型中性点接地的一般定义和注意事项。本部分介绍了系统接地的目标、接地方式和接地等级。

This guide is intended for application to three-phase electrical utility systems and is Part I of the IEEE Std C62.92 series. This part provides definitions and considerations that are general to all types of neutral grounding for electrical utility systems. Goals of system grounding, means of grounding, and classes of grounding are addressed in this part.