Dave Dungan

[Dave Dungan]

Could someone explain to me what is meant by the term "bolted fault"?

 

[electricalperson]

if im not mistaken a bolted fault is line to line

 

[chris kennedy]

A bolted fault would not involve an arc. (I believe)

Welcome to the Forum.

 

[iwire]

Take the hot and neutral wire nut them together, that is a 'bolted fault'.


It is a fault that is so well connected that there is very low resistance, there will be no arcs. etc.

 

[electricalperson]

i was mistaken i just googled it. a bolted fault is when the conductors are actually touching heres a picture i found that might help

 

[SEO]

I like iwires analogy.

 

[chris kennedy]

I like iwires analogy.

Maybe so, but I beat him by a few seconds. I used less words.:grin:

 

[Dennis Alwon]

Maybe so, but I beat him by a few seconds. I used less words.:grin:

Yeah, but you weren't certain. You added "I believe" at the end.

 

[chris kennedy]

Yeah, but you weren't certain. You added "I believe" at the end.

Ignore....

 

[Dennis Alwon]

Ignore....

You can't ignore me. I am your worst nightmare. :grin:

 

[LarryFine]

Geez, you guys are rifrickindiculous! :roll:

 

[mpross]

Bolted Fault

Bolted Fault

You can have a three phase 'bolted fault', or other types. I take this to mean that there is no impedance to ground.

~Matt

 

[LarryFine]

Consider a 'bolted fault' to be a short circuit with a conductivity equal to the conductors in question.

 

[chris kennedy]

Consider a 'bolted fault' to be a short circuit with a conductivity equal to the conductors in question.

Not bad. Military?

 

[LarryFine]

Not bad. Military?

I was in the USAF, but that's not where that description came from; I just made it up.

 

[chris kennedy]

I just made it up.

You can't just make stuff up Larry, you might get censored.

 

[480sparky]

You can't just make stuff up Larry, you might get censored.

Pay no attention to Chris... he's just making that up. :grin:

 

[LarryFine]

You can't just make stuff up Larry, you might get censored.

Then again, I might not.

Pay no attention to Chris... he's just making that up. :grin:

Did you just make that up?

 

[quogueelectric]

Could someone explain to me what is meant by the term "bolted fault"?

I would assume the term means mechanically connected as in bolted bussbar or terminated to a contactor motor leads like in the demonstrations of bolted fault that I have watched in training classes. As opposed to an arcing fault of 2 wires making contact much like a welding stinger and causing an ionization and conductivity of surrounding atmospheric air causing a conductive plasma cloud. Much more destructive due to the plasma cloud of molten metal and conductive ionized gasses.

 

[chris kennedy]

I would assume the term means mechanically connected as in bolted bussbar or terminated to a contactor motor leads like in the demonstrations of bolted fault that I have watched in training classes. As opposed to an arcing fault of 2 wires making contact much like a welding stinger and causing an ionization and conductivity of surrounding atmospheric air causing a conductive plasma cloud. Much more destructive due to the plasma cloud of molten metal and conductive ionized gasses.

Thats pretty good, did you just make that up?