美国水务协会研究基金会（AWWARF）资助的研究的目的是调查接地电系统对公用事业人员的冲击危险的金属水服务的影响，以及由于电流流动引起的可能的外部腐蚀，分配管道主管道的使用寿命降低。还研究了对水质的影响（内部腐蚀）。该项目涉及分布在美国各地的20家水务公司的参与。本文概述了该项目以及作为该项目一部分进行的公用事业调查的结果。

The objective of this American Water Works Association Research Foundation (AWWARF) funded research was to investigate the effects of grounding electrical systems to metallic water services in terms of the shock hazard for utility employees and reduced service life of the distribution pipe main due to possible external corrosion caused by the current flow. Effects on water quality (internal corrosion) were also investigated. The program involved the participation of twenty water utilities geographically dispersed across the United States. This paper presents an overview of the project and the results of a utility survey which was conducted as part of the project.