14/2 short?

hello, if you remember I asked a few days ago about the problem I had with a fire, wel thanx to your comments I had found to circuits which a 3 foot part of the circuit cable was burned,
The simplest way it could be fixed is if I spliced it at both ends with junction boxes...
It worked great , but for some reason, one of the circuit's old cable part(the one from the slpice to the actual breaker box) still trips the breaker. there are no switches, no outlets or lights on that part of the cable , it goes straight from the junction box I installed to the breaker panel....the rest of that circuit seems so be in good condition, because I used a temporary extention cable to test the circuit and it was workign fine.



Before I go ahaid and replace that part of the circuit cable, does anyone have any idea on what could cause this problem?
The damaged area(from the fire) on the circuit is definately out of the picture.... could the fire had actually cause damage away from the evident burned part of the cable?

 

The breaker itself could have been weakened by the direct short.

Remember, though, that copper is a conductor not only of electricity, but also of heat. The intense heat of a fire could have damaged the insulation inside the romex without showing any external damage. If the wire is exposed, I would replace the entire length to the panel -- and replace the breaker too, for good measure.

That stuff is cheap compared to the cost of another fire.

 

k thank you , it is not the breaker cause I have tested it with another circuit..I'll jusr replace the cable allthe way to the box..thanx again.
just another question off of my head, if what you say is true then that part of the cable should trip the breaker even if it was not connected to the rest of the circuit?

 

Yes, it would seem so.