Jim Phillips (brainfiller) wrote:
An instantaneous trip setting that is less than the available arcing current.
...
Now if they would just include the requirement to actually determine the arcing fault current. Then do we go for 85% of the arcing fault current as recommended in IEEE1584?
And while they are at it, it would also be a good idea to see if a fuse is in its instantaneous (e.g. current limiting) region below the arcing fault current..