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#1
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Domestci supply to house - question about fuse
Out of interest
Why does the large fuse on the supply that comes into the house before supplying the meter have a rating of 415VAC (110A) rather than 240VAC? Thanks Clive |
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#2
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Domestci supply to house - question about fuse
Clive wrote:
Out of interest Why does the large fuse on the supply that comes into the house before supplying the meter have a rating of 415VAC (110A) rather than 240VAC? Thanks Clive Hi, Same part is used in 3 phase supplies where 415V faults could occur, keeps things simple |
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#3
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Domestci supply to house - question about fuse
Clive wrote:
Out of interest Why does the large fuse on the supply that comes into the house before supplying the meter have a rating of 415VAC (110A) rather than 240VAC? Thanks Clive Probably because the fuse insulation has to withstand 415 volts between phases. Even if you only have one phase they probably don't want to fit 240v ones in case you get more than one phase. |
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