Shielding room functions and construction precautions

Updated on Sun Aug 24 2025

Shield the function of the computer room There are many functions of the electromagnetic shielding room, but there are not many people who know its function specifically.

The shielded computer room occupies a very important position in the security industry. In the central area with computers, most of the shielded computer rooms are set up. It can be said that it is an indispensable infrastructure in the electronics industry. Next, I will tell you the functions and construction instructions of the shielding room!


Shield the function of the computer room

There are many functions of the electromagnetic shielding room, but there are not many people who know its function specifically. The function of the shielding room:

1. Block the diffusion of indoor electromagnetic radiation to the outside world. Strong electromagnetic radiation sources should be shielded and isolated to prevent interference with the normal operation of other electronic and electrical equipment and even damage to the health of staff.


2. Prevent information leakage of electronic communication equipment and ensure information security. Electronic communication signals will be transmitted to the outside world in the form of electromagnetic radiation, and the enemy can intercept and restore them by using monitoring equipment. Electromagnetic shielding room is an effective measure to ensure information security.

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3. Isolate external electromagnetic interference to ensure the normal operation of indoor electronic and electrical equipment, especially in the measurement and testing of electronic components and electrical equipment, use electromagnetic shielding room (or dark room) to simulate ideal electromagnetic environment to improve the accuracy of test results .


4. Military command and communication elements must have the ability to resist the enemy’s electromagnetic interference. In extreme cases such as electromagnetic interference attacks or even nuclear explosions, combined with other protection elements, electronic communication equipment is protected from damage and normal operation. Electromagnetic pulse protection room It is a special product developed on the basis of electromagnetic shielding room and combined with the special requirements of electromagnetic pulse protection in the military field.


Shielding room construction instructions

1. The shielding room is an important part of the electromagnetic compatibility (EMC) field. The shielding room is a steel plate house, and the cold-rolled steel plate is its main shielding material.


Including six-sided housing, doors, windows and other general housing elements, only strict electromagnetic sealing performance is required, and all incoming and outgoing pipelines are shielded accordingly, thereby blocking the entry and exit of electromagnetic radiation.


2. There are four types of shielding machine room: steel plate assembly type, steel plate welding type, steel plate direct sticking type and copper mesh type. The assembled type is assembled by steel plate modules with a thickness of 1.5mm. The production and installation process is relatively simple, and it is suitable for projects with small area and general shielding efficiency requirements. It can be dismantled and rebuilt, but the shielding efficiency is obviously reduced after the relocation.


Steel plate welded shielding machine room is made of 2~3mm cold-rolled steel plate and keel frame welded, with high shielding efficiency, suitable for various specifications and sizes, and is the main form of shielding machine room. The direct type and copper mesh type are used for simple projects with low requirements on shielding effectiveness.


3. The screen door is the only moving part of the screen room, and it is also the key to the comprehensive shielding efficiency of the screen room. It has high technical content, special materials, and extremely complex processes, with a total of 26 processes.


There are two types of screen doors: hinged knife door and sliding door, each with manual, electric, automatic and other forms. If the stability and cost-effectiveness of use are considered, the manual bayonet hinged door (standard door 1900㎜×850㎜) is the first choice.



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