Consumer unit (crabtree changed from a traditional fuse box about 7 years ago) has stated on it 100amp total load not to be exceeded, however fuse in elec companies meter box states 60amp, is this correct or should it be upgraded to 100amp or do's the 60amp allow for differsity ? (there is a 63mamp rccd device in consummer unit) not going to touch the thing myself but would like some information should i have to appraoach elec company thanks in advance.