<aside> <img src="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/a02c7a88-0b5b-40df-921e-d30b179c1f1a/empty.png" alt="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/a02c7a88-0b5b-40df-921e-d30b179c1f1a/empty.png" width="40px" /> Challenges:

• Incomer and Bus-Coupler LV Switchboard sections have changed positions after bus-bar have been coordinated,
• the change has not been picked up on bus-bar drawings/views and it has gone to manufacturer for production
• The Bus-Bar obstructed access to gland plates which were positioned exactly below the bus-bar crossing the panel alongside </aside>

<aside> <img src="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/8df95945-0479-497e-a150-8710961a5012/empty.png" alt="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/8df95945-0479-497e-a150-8710961a5012/empty.png" width="40px" /> Successes:

• The change could be incorporated before bus-bar delivery to site </aside>

Evidence:

<aside> <img src="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/8df95945-0479-497e-a150-8710961a5012/empty.png" alt="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/8df95945-0479-497e-a150-8710961a5012/empty.png" width="40px" /> Immediate causes:

• The switchboard sections have not been shown correctly on the bus-bar elevation drawing (not the tech sub - the construction drawing for approval)
  • if the LV sections were modelled correctly , it would be easier to spot the error while working on drawings
• The Positions of the gland plates and bus-bar terminations were unknown until panel delivery - not indicated on the technical submittal
• Dig deeper: Use techniques like the "Five Whys" to dig deeper into each immediate cause. Ask "why" repeatedly to trace the causal chain until you reach the root cause. </aside>

<aside> <img src="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/d6831872-e8fb-4fc5-9536-50db7b9d9822/empty.png" alt="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/d6831872-e8fb-4fc5-9536-50db7b9d9822/empty.png" width="40px" /> Recommended Actions for Implementation:

• Tech Sub change should include automatic trigger to verify:

  • LV Switchboard model - incomer termination point
  • LV Switchboard model - bus coupler termination point
  • LV Switchboard model - gland plates positions
  • Verification of the number of ways against LV Schematic

• Switchboard model should include correct position and size of each section, for successful coordination

• Switchboard model should include correct position and size of the gland plates and clearance zone </aside>

• [ ] Seek feedback: Obtain feedback from project team members

• [ ] Consider unintended consequences: Examine if there have been any unintended consequences or side effects resulting from the implemented actions.

• [ ] Communicate the results: Share the evaluation results with the project team