HEMP PROTECTING ELECTROMAGNETIC SHIELDED FACILITY INCLUDING MONITORING SYSTEM

摘要

PURPOSE: An electromagnetic wave shielding facility for defensive HEMP(High Altitude Electro Magnetic Pulse) which includes an off-site surveillance system using an electric potential difference method is provided to prevent a strong electromagnetic wave generated from the explosion of a nuclear bomb or an electromagnetic bomb from flowing into the circuit of an electronic apparatus through a power line or all sorts of signal lines. CONSTITUTION: A main body(10) forms in one body by welding an uncoated conductive steel plates. A door(20) is enabled to open and close on one opened side of the main body and combines to maintain air-tightness. A ventilating opening(30) which has a polygonal grating shape is installed in the opening unit of a main body and is formed in a tube type extended in a predetermined length from the cell of a gird form to the inside. A ventilating opening passes air through and prevents an electromagnetic wave. A ground unit(50) and a wastewater disposal pipe(60) is formed respectively in the opening unit of the main body.