What overload protection is there upstream of incoming HRC Cutout?

JohnW2 said:
Indeed (and I think a bit higher when there is electric heating) - and, when one thinks about it, that's not unreasonable as an average over time - 'large' loads (say, >1kW) are usually present for only a small proportion of the 24 hours of a day. However, I presume that there are times of day/year (like the infamous Christmas day morning!) when the average across properties might well get quite a bit higher than that.

Kind Regards, John
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Substations and generators usually have a continuous and peak rating. For example, a site I maintain has a substation which clearly states something like 630amp continuous, 800amp for x hours.
 
Lectrician said:
Substations and generators usually have a continuous and peak rating. For example, a site I maintain has a substation which clearly states something like 630amp continuous, 800amp for x hours.
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That makes complete sense - indeed, it's almost a necessity when one has loads which vary appreciably. As a matter of interest, do you know what rating of fuse that one would have?

Kind Regards, John
 
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