Neutral-to-earth voltage can be caused by a number of factors, both in and around the farm. The amounts of minerals and moisture in the soil, subsoil and rock strata, and the varying water table level can affect any grounding system and change N-E voltages. Sudden problems are usually due to electrical loads, conductors and connections.

Some of the factors that may cause N-E voltage include:

• A loose or corroded ground rod connection.
• Badly rusted electrical boxes or conduit (a tube or duct for enclosing electric wires or cable).
• Wires, electrical boxes, or motors in wet or damp areas.
• Accumulation of dust on or around electrical equipment.
• Bent or broken conduit.
• Scraped insulation, exposing wires.
• Insulated wires wrapped around metal pipes.
• Electrical boxes missing covers, or covers that are loose.
• Loose, hanging wires.
• Electrical outlet missing third hole for ground.
• Unbalanced electric load.
• Pinched pulsator wiring.

Neutral-to-Earth Voltage

Who is affected?

What are the symptoms?

What are the possible remedies?

What to do if you suspect neutral-to-earth voltage?

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