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Do-It-Yourself (DIY) Question & Answer Forum
max demand and diversity
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<blockquote data-quote="Evans Electric" data-source="post: 80164" data-attributes="member: 1408"><p>Good question , what I meant was ,network cut-out fuses will take overloads if they are built up slowly, but a dead short will rupture it immediatly. I know one or two industrial premises where the current creeps up over the limit at certain times of the day. By the time the fuses and tails have warmed up , the load drops again , been like it for years.</p><p></p><p>Its like blocks of flats, 500 amp fuses in switch room, 20 floors with 4 flats on each. 80 people come home and cook dinner, say, between 1700 and 1900hrs, worst case senario, but with diversity, time factors and HRC fuse characteristics , it works.</p></blockquote><p></p>
[QUOTE="Evans Electric, post: 80164, member: 1408"] Good question , what I meant was ,network cut-out fuses will take overloads if they are built up slowly, but a dead short will rupture it immediatly. I know one or two industrial premises where the current creeps up over the limit at certain times of the day. By the time the fuses and tails have warmed up , the load drops again , been like it for years. Its like blocks of flats, 500 amp fuses in switch room, 20 floors with 4 flats on each. 80 people come home and cook dinner, say, between 1700 and 1900hrs, worst case senario, but with diversity, time factors and HRC fuse characteristics , it works. [/QUOTE]
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