Meltdown (sorry it repeated)

[mike921921]

Just saw this on Insta....
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[IamAlan]

Just saw this on Insta....

I'm not saying that is what happened here, as I have no details but, we tend to add a lot of lights and equipment to our Jeeps and I wonder how many here are aware of the voltage drop and subsequent heat rise associated with the length of the wire run in DC circuits.

 

[NachoRuby]

I'm not saying that is what happened here, as I have no details but, we tend to add a lot of lights and equipment to our Jeeps and I wonder how many here are aware of the voltage drop and subsequent heat rise associated with the length of the wire run in DC circuits.

The owner says it was a transmission fire. It's an automatic too. I know the manuals has the clutch issue that was recalled, but this one is automatic. Transmission failed catastrophically, and pieces hit the fuel line.

 

[dcmdon]

I'm not saying that is what happened here, as I have no details but, we tend to add a lot of lights and equipment to our Jeeps and I wonder how many here are aware of the voltage drop and subsequent heat rise associated with the length of the wire run in DC circuits.

A longer wire run has a higher resistance. So less current, so power loss per unit length of wire, so less heat. So less stress. The only real exception to this is if the electricity is turning an electric motor. Less voltage at the terminals (because voltage was lost along the supply line) means the motor turns slower which actually increases the amp draw. I don't remember the exact details from college physics, but inductive loads can be counterintuitive.

Short runs actually have the potential to create more heat than long runs.
So the practical reality is that if your electrical system is properly protected with fuses, this won't happen.

I am just in the process of ordering my 1st jeep, so I'm no expert. But I have noticed that there is a strong aftermarket in probably un-tested very low cost Chinese "upgrades".

You can go buy that KC LED driving light for $500 or buy a knockoff on Amazon or ebay direct fromChina for $45.

Also that thing looks far from stock. You have to give the benefit of the doubt to the basic vehicle. Its way more likely that something that guy did to it caused that problem.

 

[Renegade]

I wonder if it was supercharged...

 

[Fortus]

The owner says it was a transmission fire. It's an automatic too. I know the manuals has the clutch issue that was recalled, but this one is automatic. Transmission failed catastrophically, and pieces hit the fuel line.

Was it a gasoline engine?

 

[NachoRuby]

Was it a gasoline engine?

That he does not say. I was just Instagram stalking. Maybe the owner is a member here. "Transmission gave up and blew, hitting a fuel line"

 

[Imbuere]

A longer wire run has a higher resistance. So less current, so less heat. So less stress. The only real exception to this is if the electricity is turning an electric motor. Less voltage at the terminals (because voltage was lost along the supply line) means the motor turns slower which actually increases the amp draw. I don't remember the exact details from college physics, but inductive loads can be counterintuitive.

Now I'm no expert... but your first 3 sentences don't sit right with me. I believe heat is a function of resistance and current. Look at your standard wire selector, the two-axis are distance and current.

Short runs actually have the potential to create more heat than long runs.

All else equal, I can't see how short runs can create MORE heat than long runs. Maybe I'm missing something, but under the same exact load, a shorter wire has to have less resistance, therefore less heat.

So the practical reality is that if your electrical system is properly protected with fuses, this won't happen.

This is a dangerous idea. If your circuit is properly designed (appropriate conductor resistance), then a properly sized fuse is a failsafe. Fuses aren't a cure-all to improperly designed systems.

 

[Terminus33]

I mean if he pulls all that off it looks like mainly just OEM things melted, can transfer most of it to a new JT.

 

[Jefe1018]

Well that blows.

Looks to be in my neck of the woods that it happened too!

 

[MyRight]

I bet his next rig has larger extinguishers.

 

[smlobx]

Who knows what was OEM and what was modified… There are a lot of additions to that rig…My bet is that it wasn’t done correctly..

 

[Munkey Boy]

Who knows what was OEM and what was modified… There are a lot of additions to that rig…My bet is that it wasn’t done correctly..

I'm sure the insurance adjustor would agree. ? +?= ?

 

[Gvsukids]

Just saw this on Insta....
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You know, you can edit your post

 

[mike921921]

You know, you can edit your post

After 2x,only the title could be edited.

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