What is Stray Voltage?
Stray voltage is a small, measurable voltage (typically less than 1 volt) that exists between two contact points that an animal can touch simultaneously (e.g., a metal stall and the concrete floor). It results from the normal operation of a grounded electric distribution system, combined with factors on the farm like electrical systems, grounding, and wiring integrity.
Signs of Stray Voltage in Livestock
If your animals are exhibiting these signs, you may have an issue:
- Reluctance to enter milking stalls or to drink from metal waterers.
- Nervousness or twitching when touching metal equipment.
- Decreased feed and water intake, leading to lower milk production or poor weight gain.
- Incomplete milking or elevated somatic cell counts.
Safety and Solutions
RVEC encourages members to be proactive about their farm's electrical health. Addressing stray voltage often involves inspecting both the utility system and the on-farm wiring.
- Contact RVEC First: If you suspect stray voltage, contact Raccoon Valley Electric Cooperative immediately. We can schedule a free cooperative-side investigation to measure the voltage on our system entering your property.
- Inspect On-Farm Wiring: The most common source of problematic voltage is poor or outdated on-farm wiring. Have a qualified electrician who specializes in agricultural wiring inspect and test your barn, milking parlor, and outbuildings for:
- Faulty or corroded grounding.
- Improperly sized neutrals or poor connections.
- Electrical shorts or current leakage.
- Isolate Sources: Small appliances, faulty motors, and inadequate equipment grounding can all contribute to the problem.
If you observe any of the warning signs, call RVEC to begin.