Abstract
When a cloud data center is constructed in the same location as a high voltage substation, the power frequency magnetic field when the substation works normally and the short-time power frequency magnetic field at the time of short circuit may cause hazards to the information storage equipment of the cloud data center constructed on the same site. Through measurements and analyses, this article summarizes characteristics of power frequency magnetic field environment generated by the substation. It proposes to improve the power frequency magnetic field immunity of information storage equipment so as to cancel measures for shielding power frequency magnetic fields in the data cloud center and save a huge amount of shielding expenses for protection strategies against power frequency magnetic fields in the data center. The power frequency magnetic field immunity is tested on the server for information storage in the cloud data center developed according to harsh requirements of power frequency magnetic field immunity. The test results indicate that the server developed for the data center can tolerate the harshest power frequency magnetic field environment.
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