计算机屏蔽机房设计方案（Design scheme of computer shielded computer room）.doc

计算机屏蔽机房设计方案（Design scheme of computer shielded computer room） Technical basis and design principle 1. Technical basis Shielding effectiveness design of GB12190-90 high performance shielding room YDJ26-89 provisional technical regulations for earthing design of Communication Bureau (station) standard of Peoples Republic of China Ministry of Posts and Telecommunications The technical requirements and testing methods of BMB31999 electromagnetic shielding room for dealing with classified information GB50222-95 fire code for interior design of buildings .GB8702-88 electromagnetic radiation protection regulations .GB9361-88 computer site safety requirements Technical requirements for movable floor for GB6650-86 computer room 2. electromagnetic shielding room working principle: Wave in the transmission process, alternating magnetic field and electric field generated by the alternating, in its attempts to have made good grounding of the ferromagnetic material of good conductivity shielding shell, the electric field energy through with earthing conductor without attenuation, the magnetic field energy in the magnetic field through the material to generate eddy current and loss, so its strength will affected by attenuation (about 3000 to 100000 times) to the electromagnetic wave shielding effect (isolation). Two, plate welding electromagnetic shielding room structure: (customizable) Steel plate welding type electromagnetic shielding chamber structure: welded structure shielding room is made of different specifications module steel plate (steel plate thickness 2~3mm) welded together. The design of supporting frame manufacturing Longmen rectangular steel keel with different load area for shielding casing according to different parts of the shielding shell bearing capacity is different, its greatest feature is the stiffness and strength, shock resistance, stability and reliability is better than other structures of the shielded room, and the shielding effectiveness is much h