1. Protective Grounding Single Phase Tangent
© 2018 Iowa Association of Electric Cooperatives

2. OSHA Required Tailgate Discussion Topics
Hazards Associate with the job
Work Procedures Involved
Special Precautions
Energy Source Controls
PPE Required
The five topics required by OSHA to discuss in the tailgate.
First letter from each topic = How Well Should Everyone Plan
© 2018 Iowa Association of Electric Cooperatives

3. Work Procedures Involved Hazards associated with the job
Special Precautions
Energy Source Controls
Personal Protective Equipment
Be sure to record your emergency location and post in a location everyone on the crew knows.
Have your PPE and First Aid kit available
Be sure your AED is accessible.
A safe job begins with a thorough inspection of…
Tools Be certain all of your tools are in good shape.
Equipment Make sure your trucks are all in working order take time to preflight your equipment and insure there are no surprise.
Line/Structure Look over the line and structure. Are there any potential hazards? (Broken insulators, damaged wire, clearances over roads or from trees?)
Be aware of your work area, be sure to cover anything you can reach touch or fall into. And anything that can reach touch or fall into you!
Discuss all PPE needed for the job and wear your PPE. Be sure to inspect your equipment prior to use. Identify all voltages you are exposed to. Be sure to have all of your Arc-Flash protective gear on.
Identify a dedicated observer
Working in traffic exposes you to hazards that are difficult to control. Give the vehicles plenty of time to see and avoid you! Follow the manual of traffic control for your area.
Slips trips and falls are some of the most common injuries, look for hazards that could cause this. Be sure to inspect and wear your fall arrest harness.
Here are the five topics again with signs and bubbles to jump start tailgate discussion!!
Click on the icon to bring up a text box. Click on the icon again to make the text box go away
Gets the crew involved. Gives the feeling of knowing it is ok to ask questions, give suggestions, see something, say something!
The next slides will get directly into the task at hand. Visual, written and audio will all be used here!
There are suggestions in the notes as to what to discuss. This will get the Team involved, creating communication channels to open!
© 2018 Iowa Association of Electric Cooperatives

4. Be sure to de-energize the line at the source
Be sure to de-energize the line at the source. Identify and isolate all possible sources. Check the adjacent spans for hazards. Be sure you have completed your briefing.
© 2018 Iowa Association of Electric Cooperatives

5. Test to see that the line is de-energized
Test to see that the line is de-energized. Use an approved testing device for the known voltage level. Test the tester before and after testing the conductor.
© 2018 Iowa Association of Electric Cooperatives

6. Brush the conductor in the area you are going to install the protective ground clamps to remove oxidation with a hot stick mounted conductor brush.
© 2018 Iowa Association of Electric Cooperatives

7. Brush the conductor in the area you are going to install the protective ground clamps to remove oxidation with a hot stick mounted conductor brush.
© 2018 Iowa Association of Electric Cooperatives

8. Install a pole ground cluster below the work area.
© 2018 Iowa Association of Electric Cooperatives

9. Connect a ground to the pole cluster.
© 2018 Iowa Association of Electric Cooperatives

10. Hook your hot stick to the parked ground clamp.
© 2018 Iowa Association of Electric Cooperatives

11. Move the ground clamp and ground wire and connect it to the neutral
Move the ground clamp and ground wire and connect it to the neutral. Provide a little wiggle when doing this to let the teeth of the ground clamp bite through the oxidation of the conductor to make a better connection. This is also why we used a conductor brush on the end of your hot stick.
© 2018 Iowa Association of Electric Cooperatives

12. Place another ground set close the the clamp on the neutral
Place another ground set close the the clamp on the neutral. If the neutral conductor is reduced or to small for the available fault current this clamp may be placed on the ground cluster and an additional driven ground and ground conductor running from the driven ground to the cluster may be needed.
© 2018 Iowa Association of Electric Cooperatives

13. Unhook the ground clamp on the parking stud and move it to the de-energized phase.
© 2018 Iowa Association of Electric Cooperatives

14. Connect the ground clamp to the phase conductor
Connect the ground clamp to the phase conductor. Again provide a little wiggle when doing so to allow the teeth to penetrate the oxidation. Even with brushing this is a good practice.
© 2018 Iowa Association of Electric Cooperatives

15. The line is now grounded.
© 2018 Iowa Association of Electric Cooperatives

16. Be sure the ground is ready to be re-energized
Be sure the ground is ready to be re-energized. Remove the ground clamp from the phase. At this time the phase is now to be considered re-energized.
© 2018 Iowa Association of Electric Cooperatives

17. Move the ground clamp to the parking stud on the ground clamp connected to the neutral conductor.
© 2018 Iowa Association of Electric Cooperatives

18. Remove the ground set from the neutral conductor.
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19. Remove the ground set from the stick.
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20. Remove the ground clamp from the neutral conductor.
© 2018 Iowa Association of Electric Cooperatives

21. Connect the ground clamp removed from the neutral conductor to the parking stand on the ground clamp connected to the ground cluster.
© 2018 Iowa Association of Electric Cooperatives

22. You can remove this ground clamp with your rubber gloves
You can remove this ground clamp with your rubber gloves. Remember, the pole is now considered energized since it is no longer grounded.
© 2018 Iowa Association of Electric Cooperatives

23. Remove the pole ground cluster.
© 2018 Iowa Association of Electric Cooperatives

24. The job is now completed.
© 2018 Iowa Association of Electric Cooperatives