Thanks Ben...good reminder that ensuring proper torque on critical fasteners is always part of a job well done. Working at IBM, I saw surprising examples torque failures causing burned up breakers. In those cases, the fail was usually over-torqueing. When over torqued, the lugs would crush the metal in the conductors, and over time electromigration from the crush site would end up loosening the lug and causing it to get higher resistance. This leads to overheating failure...burned up conductor insulation, smoke damage, and a significant safety hazard. So too loose and too tight are both problems. What's needed is just right....which can only be done with a torque wrench. This is why every electrical device with a lug has torque specs printed on it.
Get some RED or ORANGE fingernail polish (pumpkin orange is usually very cheap after halloween). Use the polish on the threads after torque set. If the screw ever changes then the polish will flake and or show a crack. This is a this is a "tamper-proof" seal method used in industry in quality assurance all the time. Markers only show that someone marked it for some reason, lacquer seal shows tamper and change as well.
Thanks Ben...good reminder that ensuring proper torque on critical fasteners is always part of a job well done.
Working at IBM, I saw surprising examples torque failures causing burned up breakers. In those cases, the fail was usually over-torqueing. When over torqued, the lugs would crush the metal in the conductors, and over time electromigration from the crush site would end up loosening the lug and causing it to get higher resistance. This leads to overheating failure...burned up conductor insulation, smoke damage, and a significant safety hazard.
So too loose and too tight are both problems. What's needed is just right....which can only be done with a torque wrench. This is why every electrical device with a lug has torque specs printed on it.
Cheers I always check those "factory" screws for tightness on most electrical stuff.
Thank you, Ben 🙏. I knew about the recall, but now I know the fix. So very much appreciated 🙂👍!
THANKS
COOP
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Get some RED or ORANGE fingernail polish (pumpkin orange is usually very cheap after halloween). Use the polish on the threads after torque set. If the screw ever changes then the polish will flake and or show a crack. This is a this is a "tamper-proof" seal method used in industry in quality assurance all the time. Markers only show that someone marked it for some reason, lacquer seal shows tamper and change as well.
So if they're not loose but I can still tighten them should I tighten them with the torque wrench until I can't anymore?
Simple enough
Ben, where do you go to find the panel model numbers that need this done?
Hi Craig, I left a link in the description that should have all the info you need.
What about that xw pro
Fired it up last night! Testing should commence this weekend.
@@benssolarandbattery have recently gotten one but Did get the chance off testing it because am abroad and low battery
"Small star bit" = T20
Never trust an electrician with no eyebrows!