This practical guide to earth / ground resistance testing contains procedures commonly practiced by electrical contractors, electricians and maintenance workers of power utilities.

The information given uses simple language for easy understanding by the users and it is intended to be an educational tool.

Specific procedures may vary with each task and must be performed by qualified people.

Kyoritsu Electrical Instruments Works, LTD informs that this guide is not a substitute for any International, National or Local Standard, which should always be consulted in case of doubt.

Kyoritsu Electrical Instruments Works, LTD is not liable for any claims, damages or losses, including property damage or personal injury incurred on this practical guide.