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IEC/EN 61000-3-2 和 IEC/EN 61000-3-3分别是谐波电流发射和电压波动及闪烁的两个标准,在CE-EMC的自我声明中有着广泛的应用。
IEC/EN 61000-3-2适用于每相电流小于等于16A,并连接到低压供电网络的产品,具体的说对于供电电压为:220/380V、230/400V、240/415V 的产品需要满足谐波电流的限值要求。
IEC/EN 61000-3-2适用于每相电流小于等于16A,并连接到电压为220V-250V /50 Hz 的低压供电网络的产品,且不是Conditional connection连接的。
所以,对于电池供电或直流供电的产品,不在上述的标准适用范围内,CE-EMC的自我声明中这两个标准也就自然不需要列出来了。
According to CENELEC Guide n° 25, EN 61000-3-2 and EN 61000-3-3 are published in the OJEU as product family standards, and apply in their own right to all products in the scope of these standards (P7), Only for equipment intended for connection to LV public supply (Particular note 2 on page 9). More details would be found in Table 1 and ANNEX 1.
Conclusion: If the equipment doesn’t intended for connection to LV public supply, such as DC or batteries powered, there is no harmonic current or flicker requirements.
For example, if the EUT is a mouse, the applicable standards are:
EN 55022 and EN 55024
Attachment 1:
http://www.cenelec.eu/Cenelec/Code/KBQA.aspx?g={B54C6A5D-9E04-41F7-94E1-4C457093E953}
Question:
As far as I know in europe the standard voltage/current ratings are 230V/16A. Is this true? Or do other countries/regions have different ratings? What are the real voltage/current ratings in all european countries/regions? Are there regions in which the available power is less or more than prescribed by the standards? Best regards, Gijs Breedveld
Answer:
You will find requested information in HD 472 S1:1989 " Nominal voltages for low-voltage public electricity supply systems".
We also inform you that our Technical Board noted the request of the German National Committee to extend the transition period on the voltage tolerance to "230V/400V + 10% / - 10%, as specified in HD 472 S1, and resolved to extend this transition period for another 5 yeras up to the year 2008.
Our CENELEC Guide 6 may also be of interest to you. Its title is "The recommended marking of the rated voltages of electrical equipment".
Attachment 2:
Three different cases must be clearly distinguished in the present situation.
a) Low-power equipment rated at less than 16 A per phase and intended for direct connection to the public low-voltage supply system.
The harmonised standards EN 61000-3-2 and EN 61000-3-3 (or EN 61000-3-11 in some cases) cover all equipment equal to or less than 16A rating and intended for direct connection to public low-voltage supply systems.
b) Equipment with rated current greater than 16A and intended for direct connection to the public supply systems Harmonised standard EN 61000-3-11/ 61000-3-12 covers requirements for the limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems for equipment with a rated current not greater than 75 A and which is subject to conditional connection (as defined in the standard). Above 75A there is no standard until now.
c) Equipment intended for connection to the public medium voltage (or high voltage) supply (industrial loads) If limits in the strict sense were to be defined, it is expected that they would refer to installations (and thus be location dependent) and not refer to equipment at the manufacturing stage.
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