Answer:
Step-by-step explanation:
The Arc Flash Boundary refers to the minimum distance from an electrical arc flash hazard within which a person could be exposed to thermal radiation or other dangerous effects. It is important to establish these boundaries to ensure the safety of workers in electrical environments.
In this case, we are given two different Arc Flash Boundaries:
- A 12-inch Arc Flash Boundary: This is called the Restricted Approach boundary. It indicates that only authorized personnel who are properly trained and equipped can enter this zone.
- A 42-inch Arc Flash Boundary: This is called the Limited Approach boundary. It signifies that unqualified personnel should not enter this zone unless accompanied by authorized and properly trained individuals.
Based on this information, the correct answer is:
D) Limited, Restricted Approach
The 12-inch Arc Flash Boundary is referred to as the Restricted Approach, while the 42-inch Arc Flash Boundary is called the Limited Approach.
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