What can a nongrounding-type receptacle be replaced with where a grounding means does not exist?

Replacing a nongrounding-type receptacle with another nongrounding-type receptacle is appropriate in situations where a grounding means does not exist. This practice is aligned with safety and code compliance regulations. A nongrounding-type receptacle is designed specifically for environments where grounding is not possible, ensuring that the equipment using such receptacles is compatible with the existing wiring infrastructure.

In instances where grounding is not available, substituting a grounding-type receptacle would not be safe, as it could lead to potential shock hazards if connected equipment expects a ground. The same goes for using a special grounding adapter, as these devices require a proper grounding system to function safely. Likewise, any type of receptacle would not be appropriate without considering the safety implications tied to grounding requirements. Therefore, maintaining the same type of receptacle ensures adherence to the electrical safety codes and keeps the installation safe for use.