scope:

This guide addresses voltages that exist at publicly and privately accessible locations as a result of the delivery and use of electrical energy. This guide is not intended for use as a statement of cause and effect. It focuses primarily on the presence of power frequency related voltages and discusses definitions, sources, testing techniques, and mitigation strategies.

Purpose

While some jurisdictions have implemented local rules concerning stray and contact voltage, there is presently no industry-wide guide or standard that describes the variety of publicly and privately accessible voltages resulting from the delivery and use of electrical energy. The purpose of this guide is to provide information regarding the potential for risk and recommend actions taken in respect to the presence of either stray or contact voltage. This guide is also intended to help dispel misinformation surrounding this topic and enhance public safety.