I guess the main issue is verifying that the fuse is <=100A. Without knowing that the cutout is of a type which only accommodates <=100A fuses, you're into speculation territory . . .
No speculation required. Where “whole current” metering is used, that is the current carrying conductors route directly through the tariff meter, the cutout fuse will always be 100A or less. Where a “looped service” is observed, such as the photo in this thread, it is probable that the cutout fuse will be either 60A or 63A.
I guess the main issue is verifying that the fuse is <=100A. Without knowing that the cutout is of a type which only accommodates <=100A fuses, you're into speculation territory . . .
No speculation required. Where “whole current” metering is used, that is the current carrying conductors route directly through the tariff meter, the cutout fuse will always be 100A or less. Where a “looped service” is observed, such as the photo in this thread, it is probable that the cutout fuse will be either 60A or 63A.
