Idaho Power has established a threshold level of 1 volt at the livestock-point-of-contact. This is slightly less than the voltage of a single standard flashlight battery (1.5 volts) and is consistent with U.S. Department of Agriculture findings.
If levels above 1 volt are detected, the company will determine the degree to which the levels can be attributed to the company’s system and the degree to which they can be attributed to the customer’s electrical system. Our stray voltage technicians will take necessary steps to remedy any issues with the system and advise the customer of possible actions to address those originating at the customer’s facility.
The presence of stray voltage at a dairy operation is impossible to eliminate without giving up features of the system’s design that address reliability, equipment protection and the safety of humans and animals. However, there are options available to reduce stray voltage to the point that it has no adverse effect on livestock or livestock operations. We make every effort to ensure that such efforts result in the protection of all customers’ best interests.
By request, we will install a neutral isolator at a facility, completely separating the customer’s grounded system from the broader and more extensive grounding system of Idaho Power. For more information on the risks associated with this option, please call Idaho Power’s customer service center at 1-800-488-6151 or 208-388-2323 from the Treasure Valley and ask to speak with a Power Quality Engineer.
We recognize the importance of making information and educational opportunities regarding stray voltage available to farmers, electricians and other interested parties. Idaho Power is committed to keeping ourselves and our customers informed about stray voltage-related scientific and regulatory developments. We maintain a library of publications relevant to stray voltage research, legislation and related issues. This information is accessible to Idaho Power’s customers, employees and other interested parties at the company’s corporate library at 1221 W. Idaho St., Boise.
In addition to information available from Idaho Power representatives in your community, the company recommends the USDA Handbook 696 on Stray Voltage/Current, which provides a complete overview of the subject. Please note that this brochure may take up to 17 minutes to download on a 56k modem. The handbook may also be obtained from our corporate library by calling 208-388-2316.