New York State Master Electrician Practice Exam

What is the minimum requirement for receptacles in areas classified as hazardous with anesthetic usage?

1. Must be waterproof

2. Must be listed for use in specified locations

3. Must be double insulated

4. Must be exclusively for emergency use

The correct answer is: Must be listed for use in specified locations

In areas classified as hazardous due to anesthetic usage, the minimum requirement for receptacles is that they must be listed for use in specified locations. This is crucial because hazardous locations, such as medical facilities where anesthetics are used, may contain flammable gases or vapors that require specific electrical equipment designed to mitigate risks associated with these environments. Receptacles in these areas must adhere to strict safety standards and specifications set forth by relevant codes and guidelines, such as the National Electric Code (NEC), to ensure they can safely operate without igniting hazardous materials. This means they undergo rigorous testing to verify their suitability for high-risk conditions. Choosing receptacles that are improperly rated could lead to catastrophic failures, potentially endangering patients and staff. While waterproof, double insulated, or exclusively for emergency use receptacles may serve important roles in electrical installations, they do not specifically address the unique requirements that apply to locations dealing with anesthetic hazards. The emphasis on listing for specified locations ensures compliance with safety norms specific to the nature of the risk presented in those environments.