Ground level housing for electrical apparatus

Claim 1

A GROUND LEVEL ELECTRICAL INSTALLATION COMPRISING, IN COMBINATION, A THREE-DIMENSIONAL CONCRETE PAD RESTING ON THE GROUND AND BEING SUBSTANTIALLKY SOLID IN HORIZONTAL CROSS SECTION AND HAVING ITS UPPER SURFACE ABOVE GROUND LEVEL AND CONDUCTOR PASSAGE MEANS EXTENDING THERETHROUGH, ELECTRICAL APPARATUS SUPPORTED ABOVE GROUND LEVEL ON SAID UPPER SURFACE, A METALLIC HOUSING ON SAID PAD IN SURROUNDING RELATION TO SAID ELECTRICAL APPARATUS, AN UNDERGROUND ELECTRICAL CABLE EXTENDING THROUGH SAID CONDUCTOR PASSAGE MEANS IN SAID CONCRETE PAD INTO THE INTERIOR OF SAID HOUSING AND BEING CONNECTED TO SAID APPARATUS, MEANS FOR GROUNDING SAID HOUSING, MEANS FOR ANCHORING SAID HOUSING TO SAID CONCRETE PAD, SAID HOUSING HAVING AN ACCESS OPENING THEREIN OF A SIZE PERMITTING PERSONNEL TO ENTER SAID HOUSING TO REPAIR AND MAKE ELECTRICAL CONNECTIONS TO SAID APPARATUS, A MOVABLE DOOR MEMBER NORMALLY CLOSING SAID ACCESS OPENING, MEANS FOR LOCKING SAID DOOR MEMBER CLOSED, SAID HOUSING HAVING AN AIR INTAKE OPENING ADJACENT THE LOWER END OF SAID ELECTRICAL APPARATUS AND AN EXHAUST OPENING POSITIONED ABOVE SAID ELECTRICAL APPARATUS AND AIR BEING CIRCULATED INTO THE INTERIOR OF SAID HOUSING THROUGH SAID INTAKE OPENING AND PAST SAID APPARATUS AND OUT OF SAID EXHAUST OPENING AND COOLING SAID ELECTRICALK APPARATUS BY THERMAL CONVECTION.