[Ozzy1990]

480 wins

 

[360max]

...too much pressure on the bushing?

 

[HARRY304E]

There was no bushing....:no::laughing:

 

[480sparky]

There was no bushing....:no::laughing:

Looks like a grounding bushing to me.

 

[HARRY304E]

Looks like a grounding bushing to me.

Well,,,,



I need better glasses...:whistling2::laughing:

 

[360max]

looks like the short burnt through the top edge of grounding bushing until it reached the conduit

 

[360max]

Well,,,,



I need better glasses...:whistling2::laughing:

thats ok Harry, the post still counts :whistling2:

 

[480sparky]

Well,,,,



I need better glasses...:whistling2::laughing:

Maybe the plastic burned away.... or got knocked off/broken during installation and was never there.

 

[HARRY304E]

thats ok Harry, the post still counts :whistling2:

Yeah!!:laughing:

 

[HawkShock]

It would be more impressive if it was 277:whistling2:

 

[Jlarson]

It always wins.

 

[sparky970]

I would blame that on a poor install

 

[five.five-six]

It would be more impressive if it was 277:whistling2:

It was.

 

[Ozzy1990]

Plastic is still on the bushing

 

[yamatitan]

At least they used bushing these guys didnt but it was only on the 208 side of the transformer. The new tenant didnt need the transformer for what they where doing so I just disconnected it and let the owner decide what he wanted to do.

 

[BBQ]

An old thread of mine. http://www.electrical-contractor.ne...p/topics/119389/4_RMC_vs_Utility_Current.html

 

[RIVETER]

480 wins

View attachment 32209

I have to say that it looks as though 480 volts was not involved...Not enough damage.

 

[Big John]

That's an interesting one. I see an EGC, so I assume the fault occurred inside the flex itself, and the connections were high enough impedance that the breaker took forever to clear it?

 

[HawkShock]

It was.

Prove it. I don't believe it at all. There is no evidence to prove anything has happened there at all.
I also don't believe in sarcasm.

 

[yamatitan]

That's an interesting one. I see an EGC, so I assume the fault occurred inside the flex itself, and the connections were high enough impedance that the breaker took forever to clear it?

Fault happened at the other connector inside the panel that I didnt take a picture of. No bushing on that side either, insulation rubbed through and it was over. Happened at night when no one was in the warehouse not sure how long it took the breaker to clear but it did trip. Not till everything melted though.