Mike Dolt Enterprises
Mike Dolt Enterprises
User: mnbiker, Location: st.paul mn
Asked on: Friday, March 18, 2011 at 3:05 pm EDT
Answered on: Tuesday, May 14, 2024 at 3:00 am EDT
Question: Good day, I have a question about the buss and screws for a ITE panels which use a type BL breaker. Through out our plant we use ITE panels both 208/120 and 480/277. in a few of the panels the threads in the copper buss are stripped. the A and C phase look to be no big deal as one can just change out the fingers. but the b phase looks like one would have to take the panel apart. Is there a easier way to do this, Does ITE sell a self tapping screw. thanks Ted
Options for Repairing Stripped Buss Threads in ITE Panels with Type BL Breakers
1. Replace the Fingers (A and C Phase)
As you mentioned, replacing the A and C phase fingers is a relatively easy repair. Loosen the screws holding the fingers in place. Slide the damaged fingers off the buss. Insert the new fingers and tighten the screws.
2. Use Self-Tapping Screws
ITE does not manufacture self-tapping screws specifically for buss threads. However, there are third-party options available. Choose a self-tapping screw that is slightly larger than the original screw and has a sharp point. Carefully align the screw with the stripped threads and gently tap it in place with a hammer or screwdriver. As you tighten the screw, it will cut new threads in the buss.
3. B Phase Repair (Without Disassembling the Panel)
Not Recommended but Possible
Attempt to tighten the screw gradually using a small wrench or pliers. Apply downward pressure while tightening to help the screw engage with the threads.
Caution
Overtightening can damage the buss.
Recommended
Disassemble the panel to access the B phase buss. If the threads are severely stripped, use a thread repair kit or consult an electrician for professional repair.
Additional Notes: Ensure that all screws are properly tightened to specifications. Inspect the buss and screws regularly to prevent future damage. If replacing screws does not resolve the issue, there may be other underlying problems that require professional attention. Flag for review