Torque Wrench Not Required

[brian john]

The complete risers, 2 of them in a 12 story building plus horizontal runs, All busway connections were loose.

 

[brian john]

Should have called this thread Friday Pic's

 

[infinity]

Guess the installer knew nothing about the sheer heads on those bolts. You think that they would have seen the red warning labels.

 

[infinity]

Should have called this thread Friday Pic's

What's worse than the wire handle tie is that the bolt-on CB opposite the blue conductor is not bolted to the bus.

 

[brian john]

Don't bother to investigate why it blows just replace it, this was a one time IR customer (an EC) had replaced the fuse several times and wanted us to try and determine why it kept blowing. There is visual evidence of thermal damage on the "C" phase line side fuse clips.

 

[augie47]

just whistle and smile on your way to the bank

 

[brian john]

If they do not fit bend them over and double them up.

 

[brian john]

There was no load at the time of the IR scan.

 

[brian john]

Bad crimp on a Mac Adapt type connector.

 

[brian john]

What's worse than the wire handle tie is that the bolt-on CB opposite the blue conductor is not bolted to the bus.

I believe that is a two pole shunt trip CB on the other side takes 3 spaces.

 

[mivey]

I see the thermal issue in #5 but I wouldn't think that the 10-12 deg F above ambient in #1 would normally scream for attention.

 

[cschmid]

In number & it looks like they used a bigger lug into another lug. But you say they bent it and it did not break. Wow:smile:

 

[Twoskinsoneman]

Are those smaller wire double lugged? Or maybe they are terminated with ring terminals under the lug....

I just have to say that when techs double lug these tiny (comparatively) wires onto the power lugs is drives my nuts!

 

[ItsHot]

IR

IR

Thanks Brian for sharing the pictures! IR has really been a plus to the industry. I have only a couple of times worked with this. We rented the camera(Flir). What is your take on the small Fluke brand?

 

[mikeames]

Awesome images.

 

[brian john]

Are those smaller wire double lugged? Or maybe they are terminated with ring terminals under the lug....

I just have to say that when techs double lug these tiny (comparatively) wires onto the power lugs is drives my nuts!

These adaptors are for terminating AL into connectors supposedly in a BETTER manner. But it is one of the main issues we see with AL over straight AL connections. I am not sure if it is a bad product or due to improper tool being utilized to crimp.

 

[infinity]

Bad crimp on a Mac Adapt type connector.

I'm curious to know how it's the crimp and not just a unbalanced load on that phase?

 

[brian john]

I'm curious to know how it's the crimp and not just a unbalanced load on that phase?

We did not get the repair, our IR tech does current readings and FOP readings on all IR discrepancies.

 

[Cow]

We did not get the repair, our IR tech does current readings and FOP readings on all IR discrepancies.

I've only been involved with one IR scan provided by another company. The customer showed us the scan with several, probably a dozen or so terminations that were uneven temperature with us doing the repairs. I wondered why the IR techs didn't show the loading in the test reports myself? Do you normally show the load as well as the temp readings on each phase?

 

[brian john]

We show load currents, FOP readings (in field reports), and our tech's do calculations that determine class of discrepancy based on rating of equipment, load at time of IR and temperature of the deficient item and ambient.