resetable fuses for finding shorts?

If you have a 30 amp car fuse that keeps blowing ,  how do you test without blowing a ton of fuses? Are there any guides for techniques for finding shorts?

Thanks for the fast response. I appreciate it.:) So the bulb will eat all the amps so that nothing gets damaged in the rest of the circuit, I assume. I have not studied this in years. Thanks again.

With nothing to limit the current, the 30 amp breaker will constantly be tripping and resetting itself.  Hope you can find the short before the battery goes dead.

If you have a direct short that is immediately blowing a 30A fuse you can just use an ohm meter between the output of the fuse and ground.  If the fuse takes a while to pop or only pops while you are driving that would require a resettable circuit breaker.

The method I would use to "quickly" locate the spot of the short would vary greatly depending on what kind of circuit it was.  If it was a 30A power wire for an amp I would go about it completely different then if it was a 30A OEM lighting circuit.  If you provide us with more information maybe we can offer better solutions.

With that being said, I have found it easiest to divide and conquer - the smaller the area you can isolate the short to the easier you will be able to find it and fix it.