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    Low voltage electrical apparatus

    Low-voltage Apparatus

    Program overview

    Power supplies are widely used in modern electronic products, which need to have certain anti-interference ability, isolation and protection functions. Different countries and regions have a series of certification standards for various power supplies entering the market to ensure the quality of power products. ITech has a rich product line of power test instruments, including AC and DC sources, AC and DC loads, power analyzers, and its9500 power module automatic test system.

    Application document

    Main criteria

    • CISPR11/GB 4824

      IEC 60947-1/GB 10408.1

      IEC 60947-2/GB 10408.2

      IEC 60947-3/GB 10408.3

      IEC 60947-4/GB 10408.4

      IEC 60947-5/GB 10408.5

      IEC 60947-6/GB 10408.6

      IEC 60947-10/GB 10408.10

    • 《Industrial, scientific and medical (ISM) radio frequency equipment - Limits and methods of measurement of electromagnetic disturbance characteristics》

      《Low voltage switchgear and controlgear Part 1: General》

      《Low voltage switchgear and controlgear Part 2: circuit breakers》

      《Low voltage switchgear and controlgear - Part 3: switches, isolators, disconnectors, and fuse assemblies》

      《Low voltage switchgear and controlgear Part 4-1: Contactors and motor starters electromechanical contactors and motor starters (including motor protectors)》

      《Low voltage switchgear and controlgear Part 5-1: control circuit appliances and switching elements electromechanical control circuit appliances》

      《Low voltage switchgear and controlgear Part 4-2: Contactors and motor starters AC semiconductor motor controllers and starters (including soft starters)》

      《Low voltage switchgear and controlgear - Part 5-2: control circuit appliances and switching elements - Proximity switches》

    Test items

    EMS test item 8

    ▪ Electrostatic discharge immunity, contact discharge 4KV, air discharge 8Kv
    ▪ RF electric field radiation immunity, maximum test field strength 10v/m
    ▪ Electrical fast transient burst immunity, maximum test level 4KV
    ▪ Surge (impact) immunity, maximum test level 4KV
    ▪ RF conducted disturbance immunity, maximum test level 10V
    ▪ Power frequency magnetic field immunity, test field strength 30a/m
    ▪ Voltage sag, short-time interruption and voltage variation immunity, according to iec61000-4-11
    ▪ The low-frequency immunity of harmonic, inter harmonic and grid signals at the AC power port shall be in accordance with iec61000-4-13

    EMS test item 8

    ▪ Conducted disturbance voltage, 150khz-30mhz, qp/av
    ▪ Radiation disturbance, 30mhz-1ghz, QP
    ▪ Harmonic current emission test according to IEC 61000-3-2
    ▪ Voltage fluctuation and flicker test according to IEC 61000-3-3

    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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