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Safe Removal of Electrical Panel Cover

0:57
1:40
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At 0:57 in

Electrician Dad and Son Try to Troubleshoot why a 480 Volt Circuit Breaker was Arcing, Thoughts?

What happens here

To gain access to the internal components, the next step involves removing the outer cover of the P4 panel. The electrician notes that some screws securing the cover are stripped, cautioning against using a power drill which could further damage them or cause an uncontrolled opening. He then demonstrates a crucial safety technique for opening high-voltage electrical panels: placing one hand firmly on the panel cover and maintaining constant pressure while manually loosening the screws with the other hand. This 'hand on the panel' method ensures that if the cover is under spring tension or if internal components are loose, it does not unexpectedly spring open, potentially causing injury or exposing live conductors. This technique is vital because the integrity of the cover attachment is unknown due to the stripped screws.

Goal: Safely access the internal 'dead front' of the electrical panel.

Tools and materials

  • Arc Flash Rated PPE — Protection against arc flash hazards (though not explicitly shown, it is absolutely essential for this type of work)
  • Fastener — Securing the panel cover. Some are noted as stripped
  • Manual Screwdriver — Manually unscrewing the fasteners
  • P4 Panel Cover — The outer cover that needs to be removed for access

What they say

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the UPS. This one was added. I remember doing this one. Okay. So, let's uh let's start off. And you can see why you don't want to use a drill. These are all stripped out. Look at that. Yeah. That just literally came right out. So, >> Yeah, no. And I took one out right there. >> Oh, okay. So, let's let's remove these screws. All right. Here we go. Yep. Let's go. Let's start with this one. Put always put a hand on the panel. Never let go of it. Never let go of it? >> Yeah. Never let go. You have to always keep pressure on it cuz you don't know if these screws are ready to give or not, you Keep your hand on it. Yep. Keep your hand on it. Do the left side first and the right side or the >> matter. It doesn't matter? Yeah. Hold it.

Auto-generated from the video audio.