This seems to be a typical standard of installation ,sterile means of communal escape, on multi storey residential premises i.e 10 flats per floor ,3x floors .Electric meter box along side fire rated front door to flat/apartment.
Risk of fire and spread of smoke from electrical meters minimal (provided that entry points for electrical cable supply&feed are all sealed with fire rated material-which never are), put on that a fiberglass/plastic based -non fire rated meter box door (not class 0)severity high ,a lot of smoke that's for sure going into the communal m of e ,and potential for smoke going into residential flat/apartment, if breaches are not fire sealed.
has anyone any knowledge on any fire authority/building control/AI enforcing the upgrading of meter box covers? to class 0 on communal m of e, or what the outcomes were