The publication, Evaluating Water-Damaged Electrical Equipment, published by the National Electrical Manufacturers Association (NEMA), is an updated version of the paper Guidelines for Handling Water Damaged Electrical Equipment. It provides specific guidance on whether products that have been exposed to water should be replaced or reconditioned. A table shows the requirements and recommendations associated with various categories of electrical equipment that have been subject to water damage. If it is possible to recondition the equipment, the guide provides additional information so individuals can contact the equipment manufacturer for specific guidance.
Electrical equipment exposed to water can be extremely hazardous if re-energized without proper reconditioning or replacement. Reductions in integrity of electrical equipment due to moisture can affect the ability of the equipment to perform its intended function. Damage to electrical equipment can result from flood waters contaminated with chemicals, sewage, oil, and other debris, which will affect the integrity and performance of the equipment. Ocean water and salt spray also can be particularly damaging due to the corrosive and conductive nature of the salt water residue.
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