IEC/EN 61000-3-2 和IEC/EN 61000-3-3的适用范围
2009-08-06 12:04阅读：
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.
