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Electrical Inspection & Testing Forum
BREAKING CAPACITY OF BS3036 FUSES
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<blockquote data-quote="Andy™" data-source="post: 157401" data-attributes="member: 2012"><p>it would be best to have all devices capable of breakig full PFC, but it some cases, that isnt always possible, so providing you have some device what can, others can be lower.</p><p></p><p>take a house with TNCS fed from a transformer next door. PFC may well be over 10KA. would you fit the house with MCCB's just to break the fault current or use a normal board with 6KA MCB's and use the service fuse to break the full fault current (if there was a fault that would cause the full PFC)</p></blockquote><p></p>
[QUOTE="Andy™, post: 157401, member: 2012"] it would be best to have all devices capable of breakig full PFC, but it some cases, that isnt always possible, so providing you have some device what can, others can be lower. take a house with TNCS fed from a transformer next door. PFC may well be over 10KA. would you fit the house with MCCB's just to break the fault current or use a normal board with 6KA MCB's and use the service fuse to break the full fault current (if there was a fault that would cause the full PFC) [/QUOTE]
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BREAKING CAPACITY OF BS3036 FUSES
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