Originally Posted By: jtedesco
This post was automatically imported from our archived forum.
My personal opinion follows:
I believe that fuses are far superior for protection against an overcurrent condition. Some types of circuit breakers fail and we have been made aware that they have a history that may not be the safest protection.
Any current in excess of the rated current of equipment or the ampacity of a conductor.
It may result from overload, short circuit, or ground fault.
FPN: A current in excess of rating may be accommodated by certain equipment and conductors for a given set of conditions. Therefore the rules for overcurrent protection are specific for particular situations.
FPN: = Fine Print Note and the words shown in Brown are also defined.
Homework: You should take a look at them and add a reply here.
First one with the correct answers gets a prize!
Joe Tedesco, NEC Consultant