New York State Master Electrician Exam 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

What information must be marked on equipment installed in hazardous locations?

Manufacturer information

Model number and voltage ratings

Class, group, and temperature class

The information that must be marked on equipment installed in hazardous locations includes the class, group, and temperature class. This is crucial because hazardous locations can contain flammable gases, vapors, or dust which can pose significant risks. The class indicates the type of hazardous material, the group further categorizes the hazardous material based on its specific properties, and the temperature class signifies the maximum surface temperature of the equipment to ensure it does not ignite the surrounding atmosphere.

Marking this information helps ensure that the equipment is suitable for the environment in which it will be used, facilitating compliance with safety regulations and minimizing the risk of explosions or fires. This critical data assists installers, inspectors, and maintenance personnel in evaluating the safety and compatibility of the equipment in relation to the specific hazards identified in the location.

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Installation date and inspector

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