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Old 09-13-2011
btrayfors btrayfors is offline
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They're talking about high-amperage circuit protection. Here's the reference to their primer.

The "80% rule" is described midway down and below.

Note that with regard to short-circuit protection, they say that "Precise sizing of short circuit protection is not critical," and that fuse ratings up to 150% of the wire rating may be used.

Choosing Circuit Protection - Resources - Blue Sea Systems

Have fun today.

Bill

Last edited by btrayfors; 09-13-2011 at 10:02 AM.
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