I guess you didn't read the info from the link I posted?
eek

Here's an excerpt for you:

"... fusible links never fry unless there's a very serious problem that needs your immediate attention (like a major power wire grounding against metal!); a problem that a circuit breaker or in-line fuse could mask well enough to have you finding your car in flames. Fusible links are the safest way to protect your electrical system and keep your vehicle from an electrical fire.

An in-line fuse on a 30-amp electric fan circuit (as I discovered) won't last very long. When that fan kicks in, it's more likely to pull 60 amps (initially) than 30 and after a dozen times or so that in-line fuse will give up it's ghost and burn out -- it's a gradual breakdown that occurs.

Just like an in-line fuse, a 30-amp circuit breaker is also subject to wearing out and eventually frying ... it just takes longer.

A fusible link will never wear out. It will only burn out protecting your vehicle from bursting into flames due to a serious short that needs your immediate attention -- nothing else is gonna do that for you. You can see many fusible links in older cars, still doing their job after 20 years or more."

~~ Alan Horvath
1954 Chevy Pickup
Singing his praises in the
Passing Lane