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Old 11-18-2012, 02:36 AM   #11
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Ground bond tester would be a good way to test for poor continuity. Who else has one of those

Put 10A through it and measure the voltage drop. That's how we do in the medical design business.

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Old 11-18-2012, 02:41 AM   #12
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Not me, but I do have access to a thermal imager which clearly shows poor connections (under load).

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Old 11-18-2012, 03:54 AM   #13
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Never mind....

I'm astonished..

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Old 11-18-2012, 04:47 AM   #14
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Quote:
Originally Posted by P-J View Post

I'm astonished..
Me too.
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Old 11-18-2012, 12:54 PM   #15
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Thanks for sharing. It reinforces the requirements for solid connections and serves as a lesson for all of us wannabe electricians.

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Old 11-18-2012, 01:30 PM   #16
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When tightening your terminals use a slotted (flat head) screwdriver. Its hard to get enough torque with a phillips screwdriver

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Old 11-18-2012, 01:47 PM   #17
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Scary. I will re-tighten all of my connections immediately. Thanks for sharing!

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Old 11-18-2012, 01:52 PM   #18
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In hindsight, I think installing the receptacles in the panel and then installing the wires might have contributed to the problem. Smaller space to really torque everything down well. This may be a good opportunity the break down the whole 240 side of the panel and tighten it up.

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Old 11-18-2012, 02:25 PM   #19
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Wow, the side view looking at the screw looks like the jacket was still on the wire and looks like its outside of the clamp. If that's the case you may want to recheck all your connections. Each fitting/receptacle if you look real close has a template that tells you how far to trim back the wire jacket.

Thankfully you went back to check on it and prevented a fire.

Be Safe, Castermmt

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Old 11-18-2012, 02:30 PM   #20
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Quote:
Originally Posted by whoaru99 View Post
Not me, but I do have access to a thermal imager which clearly shows poor connections (under load).
Yea, my friend has one and we use it to find hot parts on ckt boards. They are pretty nifty.
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