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NEC Article 110.11 Deteriorating Agents

A deteriorating agent is a compound that reacts with a substance to produce a chemical change that degrades the properties of the substance. Deteriorating agents include acids, bases, oxidizers, and reducing agents. Deteriorating agents may be used in the manufacture of products or to clean or treat surfaces.

  1. No conductors or equipment should be placed in damp or wet places, areas with gases, fumes, vapors, liquids, or other substances that can damage the conductors or equipment, or areas with excessive heat.
  2. No cleaning or lubricating compounds that can damage many types of plastic insulation or structural components should be used unless they are specifically designed for that environment.
  3. Equipment not designed for outdoor use, such as equipment labeled “for dry locations,” “indoor use only,” “damp locations,” or Enclosure Types 1, 2, 5, 12, 12K, and/or 13, must be protected from the elements during construction.
  4. This section states that certain types of enclosures must be protected from the weather while they are being built.
NEC Article 110.11 Deteriorating Agents
NEC Article 110.11 Deteriorating Agents
  • 1. Deteriorating agents are materials or substances that can cause degradation of materials or objects over time.
  • 2. Examples of deteriorating agents include water, sunlight, heat, ozone, and other chemicals.
  • 3. Deterioration can occur in a variety of ways, including physical, chemical, and biological processes.
  • 4. It is important to understand the nature of the deteriorating agent in order to properly protect materials from degradation.
  • 5. Proper maintenance and storage of materials can help prevent or slow down the rate of deterioration.

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