1、 Application Fields
In order to meet the needs of information warfare under nuclear deterrence, improve the comprehensive protection capability of civil air defense engineering, and ensure the safe operation of electronic information equipment and systems, as well as power supply systems within the project, the construction of civil air defense engineering is in accordance with national industry standards《RFJ01-2001 Design Specification for Electromagnetic Pulse Protection of Civil Air Defense Engineering (hereinafter referred to as the "Specification") was released and implemented in 2001. The "Specification" provides specific provisions on the technical requirements and various engineering technical measures that must be taken for nuclear electromagnetic pulse protection in civil air defense engineering.
2、 Protection level standard
1、 Resistance level requirements:
|
Resistance level |
Air overpressure Δ Pm (Mpa) |
Peak electromagnetic pulse field strength |
|
|
Electric field strength E (Kv/m) |
Magnetic induction intensity B (mT) |
||
|
4 |
0.3 |
120 |
8 |
2、 Requirements for electromagnetic pulse environment for internal induction equipment:
|
Protection level |
Peak electromagnetic pulse field strength |
Requirements for equipment operating status |
Shielding index of protective zone |
|
|
Electric field strength E (v/m) |
Magnetic field strength B (mT) |
|||
|
Ⅰ |
≤10 |
≤0.01 |
Sensitive equipment remains undisturbed in electromagnetic pulse environments |
Pulse electric field attenuation ≥ 81.6dB Pulse magnetic field attenuation ≥ 58dB |
|
Ⅱ |
≤500 |
≤0.1 |
Sensitive equipment is not damaged in electromagnetic pulse environment |
Pulse electric field attenuation ≥ 47.6dB Pulse magnetic field attenuation ≥ 38dB |
|
Ⅲ |
≤5000 |
≤1.0 |
Non sensing devices are not damaged in electromagnetic pulse environments |
Pulse electric field attenuation ≥ 27.6dB Pulse magnetic field attenuation ≥ 18dB |
3、 Classification of Electromagnetic Pulse Protection Levels:
|
Protection level |
Name of protective area |
|
Level I protection |
Wired communication room, computer room, protective component room, air situation receiving and alarm control room |
|
Level II protection |
Wireless communication room |
|
Level III protection |
Other parts of the project that require protection except for Level I and II protection areas |
3、 Other
Install and lay indoor lighting, sockets, cables, and interior decoration according to user requirements.
