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Electrician Talk Forum
Current Draw Of Domestic Undercounter Fridges
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<blockquote data-quote="Marvo" data-source="post: 312454" data-attributes="member: 20838"><p>I know the UK regs have recommended diversity calcs in there but I have no idea what they suggest about individual radial circuits. I'd suggest caution applying 'across the board' diversity formulas to a radial cct in this application. Even at 25% running time it's a reasonable assumption that all 3 appliances would on some occasions be running simultaneously for long enough to cause an MCB to trip on thermal if the sum of the run currents exceeds the MCB In rating by a significant margin.In this scenario it's mostly academic, as you say the fridges are drawing next to nothing and even a 10Amp radial would probably be more than sufficient.</p></blockquote><p></p>
[QUOTE="Marvo, post: 312454, member: 20838"] I know the UK regs have recommended diversity calcs in there but I have no idea what they suggest about individual radial circuits. I'd suggest caution applying 'across the board' diversity formulas to a radial cct in this application. Even at 25% running time it's a reasonable assumption that all 3 appliances would on some occasions be running simultaneously for long enough to cause an MCB to trip on thermal if the sum of the run currents exceeds the MCB In rating by a significant margin.In this scenario it's mostly academic, as you say the fridges are drawing next to nothing and even a 10Amp radial would probably be more than sufficient. [/QUOTE]
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Current Draw Of Domestic Undercounter Fridges
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