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Cutting an In-Line Dead-end Single Phase

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Presentation on theme: "Cutting an In-Line Dead-end Single Phase"— Presentation transcript:

1 Cutting an In-Line Dead-end Single Phase
© 2018 Iowa Association of Electric Cooperatives DISCLAIMER: This job hazard analysis (JHA) has been made available for informational and educational purposes only. The IAEC does not make any representation or warranty with respect to the accuracy, applicability, fitness, or completeness of the JHA. The IAEC hereby disclaims any and all liability to any party for any direct, indirect, implied, punitive, special, incidental or other consequential damages arising directly or indirectly from any use of this JHA which is provided as is.

2 Why are we doing this energized?
Take some time to decide if it is necessary to do this job energized. Could the job be done de-energized and grounded? What would be the impact? Would it be safer?

3 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

4 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!

5 Be sure you have completed the JSA and have all of the equipment needed to begin.
Position about ten feet from a structure. This will help to prevent some conductor motion. It will also allow us to lower the neutral for additional clearance.

6 Bond your truck to the system neutral.

7 Lower the neutral to provide additional electrical clearance while working.

8 Cover the neutral to provide additional protection
Cover the neutral to provide additional protection. Be careful not to bounce the conductor to much. This could cause the phase and the neutral to come in contact with each other resulting in an arc and possible burn down of the line.

9 Install your conductor grips and strap hoist
Install your conductor grips and strap hoist. Leave enough room to install the insulator a shoes.

10 Install the insulated mechanical jumper (MAC)
Install the insulated mechanical jumper (MAC). Remember when one end is energized so is the other.

11 Take some slack in the conductor by puling the hoist
Take some slack in the conductor by puling the hoist. Take up just enough for the loss of installing the dead-end.

12 Carefully cut the conductor. Be sure to control the tails.

13 Install one end of the insulator and shoe.

14 Install the other end of the insulator and shoe
Install the other end of the insulator and shoe. Try to take as much slack out of the line as you can so you don’t loose sag.

15 Let the tension off of the hoist
Let the tension off of the hoist. Check your sag and make adjustments if needed.

16 Remove the hoist and grips.

17 Install a hot tap stirrup on the source side.

18 Connect a hot tap and jumper to the source side stirrup
Connect a hot tap and jumper to the source side stirrup. Extend the jumper after it is secured by the hot tap to the load side. Connect the load side. Train the jumper when completed.

19 Remove the MAC. Remember, when one end is energized so is the other.

20 Move down and remove the neutral cover-up.

21 Raise the neutral back up and tie it in. Remove the truck bond.

22 The job is completed.


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