*Question E4E13:
Where should a station AC surge protector be installed?*  

*Correct Answer is  C: On the single point ground panel*  

### AI Response: (may contain errors)  

To determine where an AC surge protector should be installed, let's analyze the options:

### Correct Answer: C - On the single point ground panel

- **Explanation**: Installing the surge protector at the single point ground panel is ideal because it helps to ensure that all equipment connected to the station is protected from surges. The single point ground panel serves as a common grounding point for all equipment, minimizing the risk of ground loops and ensuring that any surge is effectively diverted to ground.

### Why the Other Choices are Incorrect:

- **A: At the AC service panel**  
  - While this location can provide some protection, it may not effectively protect all equipment connected to the station. Surges can still enter through other paths, such as signal lines or other power sources.

- **B: At an AC outlet**  
  - Installing a surge protector at an outlet does provide some level of protection, but it is not as effective as placing it at the single point ground panel. This setup may not adequately address surges that come from the main power line before they reach the outlet.

- **D: On a ground rod outside the station**  
  - This option is not effective for surge protection. A ground rod is primarily for grounding and does not provide a means to divert surges from the AC power lines. It is also not a practical location for surge protection devices, which need to be close to the equipment they protect.

### Summary

- **Best Practice**: Install surge protectors at the single point ground panel to ensure comprehensive protection for all connected equipment.
- **Rule of Thumb**: Always prioritize grounding and surge protection at the point where all systems converge to minimize potential damage from electrical surges.