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medical equipment

medical equipment

program overview

"for medical equipment, electromagnetic compatibility should be considered at the time of design. generally, there are three ways to rectify electromagnetic interference: shielding, grounding and filtering. shielding materials or microwave absorbing materials can be used to help solve the electromagnetic shielding problem. the solution zhaoke recommends using microwave absorbing materials to absorb electromagnetic waves and eliminate electromagnetic interference, which can effectively suppress the electromagnetic interference problem in electronic equipment."

main criteria

  • cispr 11/en 55011/gb 4824

    iec 60601-1-2/yy 0505

    iec 61326-1/gb t18268.1

    iec 61326-2-6/gb t18268.26

    iec 61000-3-2/gb 17625.1

    iec 61000-3-3/gb 17625.2

  • 《industrial, scientific and medical (ism) radio frequency equipment - limits and methods of measurement of electromagnetic disturbance characteristics》

    《medical electrical equipment part 1-2: general requirements for safety parallel standards: electromagnetic compatibility requirements and tests》

    《electromagnetic compatibility requirements for electrical equipment for measurement, control and laboratory use part 1: general requirements》

    《electromagnetic compatibility requirements for electrical equipment for measurement, control and laboratory use part 26: special requirements in vitro diagnostic (ivd) equipment》

    《electromagnetic compatibility limit harmonic current emission limit (equipment input current ≤ 16a per phase)》

    《electromagnetic compatibility limit limits the voltage change, voltage fluctuation and flicker of equipment with rated current ≤ 16a per phase and unconditionally connected in the public low-voltage power supply system》

test items

ems test item 3

▪ electrostatic discharge immunity, contact discharge 20kv, air discharge 25kv
▪ radio frequency radiation immunity - anechoic chamber method, 80mhz-18ghz
▪ rf radiation immunity - large current injection (bci) 1mhz-400mhz
▪ radio frequency radiation immunity -tem cell & stripline method 0.01mhz-200mhz
▪ transient conduction immunity and power variation immunity
▪ electrical fast transient group pulse immunity, maximum test level 4kv
▪ surge (impact) immunity, maximum test level 7kv
▪ voltage sag, short-time interruption and voltage variation immunity, according to iec61000-

ems test item 3

▪ conducted disturbance voltage, 150khz-108mhz, qp/av/peak
▪ radiation disturbance, 150khz-2.5ghz, qp/av/peak
▪ harmonic current emission test according to iec 61000-3-2
▪ voltage fluctuation and flicker test according to iec 61000-3-3
▪ voltage fluctuation and flicker test according to iec 61000-3-11

other industry solutions

shanghai suoshen electronics is widely used in many industries, such as medical treatment, automotive electronics, home appliances, lighting, electrical appliances, power supply, power facilities and so on

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