Evaluating Water-Damaged Electrical Equipment – NEMA

USE OF THIS PUBLICATION

This publication provides information on how to evaluate electrical equipment that has been exposed to water through flooding, fire fighting activities, hurricanes, etc. It is designed for use by suppliers, installers, inspectors and users of electrical products.

Electrical equipment exposed to water can be extremely hazardous if reenergized 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 also 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 can be particularly damaging due to the corrosive and conductive nature of the salt water residue.

Distributors of electrical equipment should not supply any inventory that has been subjected to water damage. This can lead to damaged equipment still being used and creating a hazard to individuals or property.

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© Copyright 2006 by the National Electrical Manufacturers Association.