*Question T0B04:
Which of the following is an important safety precaution to observe when putting up an antenna tower?*  

*Correct Answer is  C: Look for and stay clear of any overhead electrical wires*  

### AI Response: (may contain errors)  

The correct answer to the question about safety precautions when putting up an antenna tower is:

**C: Look for and stay clear of any overhead electrical wires.**

### Explanation of the Correct Answer:
- **Safety from Electrocution**: Overhead electrical wires pose a significant risk of electrocution. If you or your equipment come into contact with these wires, it can lead to severe injury or death. Therefore, it is crucial to identify and maintain a safe distance from these wires when erecting an antenna tower.

### Explanation of the Incorrect Choices:
- **A: Wear a ground strap connected to your wrist at all times**  
  - This is not a standard safety practice for erecting antenna towers. Ground straps are typically used to prevent static electricity buildup, especially in sensitive electronic environments, but they do not protect against the dangers posed by overhead electrical wires.

- **B: Insulate the base of the tower to avoid lightning strikes**  
  - While grounding and lightning protection are important for antenna systems, insulating the base of the tower is not a practical or effective method for preventing lightning strikes. Instead, proper grounding techniques should be employed to safely direct lightning energy into the ground.

- **D: All these choices are correct**  
  - Since options A and B are incorrect, this choice cannot be correct. Only option C is the essential safety precaution.

### Useful Safety Rule of Thumb:
- **Maintain a Safe Distance**: A common rule of thumb is to keep at least 10 feet away from overhead power lines. Always check the area for any potential hazards before starting work on an antenna tower.

By focusing on the correct safety measures, you can ensure a safer environment while working with antenna installations.