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Wiring, Electrical & Installation
How to select the proper fuse size
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<blockquote data-quote="jsloan10" data-source="post: 904339" data-attributes="member: 560397"><p>That 296 is an instantanious peak, the 250 amp fuse will handle the short bursts without blowing, the fuse/breaker needs to heat up before it fails, the rate it heats up is in accordance to how many amps are flowing through it.</p><p></p><p>For example-</p><p></p><p>Say the flesh on your fingertip is rated to handle 70 celcius (canadian) but you can quickly touch a hot surface over 70C without getting burned, as the temperature gets hotter the amount of time it takes your skin to burn shortens.</p><p></p><p>Like a hot potato to a burning peice of coal, you can touch the hot potato for a short time and possibly if your quick enough tap the burning coal without getting burnt all the while your skin is rated for a much lower constant temperature.</p><p></p><p>See what I mean?.</p></blockquote><p></p>
[QUOTE="jsloan10, post: 904339, member: 560397"] That 296 is an instantanious peak, the 250 amp fuse will handle the short bursts without blowing, the fuse/breaker needs to heat up before it fails, the rate it heats up is in accordance to how many amps are flowing through it. For example- Say the flesh on your fingertip is rated to handle 70 celcius (canadian) but you can quickly touch a hot surface over 70C without getting burned, as the temperature gets hotter the amount of time it takes your skin to burn shortens. Like a hot potato to a burning peice of coal, you can touch the hot potato for a short time and possibly if your quick enough tap the burning coal without getting burnt all the while your skin is rated for a much lower constant temperature. See what I mean?. [/QUOTE]
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How to select the proper fuse size
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