cn

The Chinese part of the EMC test series covering disturbance on direct current input ports is applied in China to a very large installed base of equipment, because the telecommunications network, the data centres and much of the industrial control equipment in the country operate from a direct current supply rather than from the alternating current mains. The requirement is imposed through the Chinese specifications for telecommunications equipment, for industrial process control and for the power system protection devices that are supplied from the station battery, and in each case the level is selected according to the way the direct current is produced, since equipment fed from a battery behaves quite differently from equipment fed from a rectifier when the supply is disturbed. The Chinese text corresponds to the international document, and the value of this page is that it identifies the Chinese designation cited in domestic project specifications, together with the sectors in which the test is most often demanded.

GB/T 17626.29 standard satisfiable test: Multifunction Immunity Tester 、 Voltage Dips & Interruptions Immunity 。
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