stone0371 发表于 2012-6-8 21:27:17

条款4.1.1.3和4.1.1.1和4.1.1.2是一样的,不过对象是electric tool(电动工具)。使用的限值是CE2中的限值。
在电动工具中,根据电机功率的大小对电源端子的限值分为三种情况,这个和家用电器是不同的。注意这里说的是电机功率,不是产品标称功率。一般有电机的产品其实功率都可以”虚标“的,也就是说实际功率,比标称的功率要小。这个是标准中允许的,安规标准中,关于电机的功率,只有上偏差限值,没有下偏差。

stone0371 发表于 2012-6-8 21:39:35

关于table1最后的*号的说明,实际情况是这样的,在以前的测试中,准峰值和平均值的测量时分别由准峰值测量接收机和平均值测量接收机单独完成的,如果在使用准峰值测量接收机测量准峰值时,准峰值已经低于了平均值的限值,则可以省略掉平均值测量的步骤,因为根据数学关系,我们知道准峰值肯定比平均值大,则我们可以断定,平均值肯定低于平均值的限值。不过现在准峰值和平均值的测量集成在一台设备里面,这个条款已经没有什么意义了,我们了解它为什么出现的原因即可。

stone0371 发表于 2012-6-8 21:40:53

4.1.1.4 Limits for electric fence energizers apply to
a) the fence terminals on all energizers (columns 4 and 5 of Table 1);
b) the mains terminals on energizers designed for connection to the mains (columns 2 and 3
of Table 1);
c) the battery terminals on energizers designed for operation from a battery (columns 4 and
5 of Table 1).
However, no limits apply to the battery terminals of energizers with built-in batteries which
cannot be connected to the mains supply, or energizers with external batteries if the
connecting lead between the energizer and the battery is shorter than 2 m and is not
applicable of being easily extended by the user without special tools.
Type D energizers, according to IEC 60335-2-76, are measured as battery operated
energizers with connecting leads between the energizer and the battery greater than 2 m in
length.
NOTE In practice, the fence wire can also act as an active source of disturbances, due to the high-voltage discharges, in particular to radio and telecommunication networks. Manufacturers of electric fence energizers should instruct the users to eliminate discharge points such as touching vegetation or a broken fence wire.

stone0371 发表于 2012-6-8 21:43:32

4.1.1.4描述的对象是电栅栏激发器,坦白的讲,这种产品我没有见过,也不了解产品的结构,根据网上搜索的信息说,这种产品是布置在围墙上的,如果有外来人强行进入,会报警。和监控的效果差不多吧。

我就了解这么多,由于没有接触过这种产品,不敢多说,如果有朋友了解这种产品,请出来指点下。谢谢了。

stone0371 发表于 2012-6-8 21:45:50

如果从这个条款所处的标准的结构上讲,同样是描述某种产品的端子所适用的限值的,和家用电器、电动工具的分析方法是类似的。如果见到这种产品,根据端子的作用,确定相关的限值即可。

stone0371 发表于 2012-6-8 21:50:56

4.1.1.5 For battery operated appliances (with built-in batteries, as well as with external
batteries) which can be connected to the mains the limits of columns 2 and 3 of Table 1 apply
to the mains terminals.
No radio disturbance limits apply to appliances with built-in batteries, which cannot be
connected to the mains supply.

stone0371 发表于 2012-6-8 21:51:13

No radio disturbance limits apply to appliances with external batteries, if the connecting lead
between appliance and battery is shorter than 2 m. If the connecting lead is longer than 2 m
or easily extendable by the user without special tools, then the limits of columns 4 and 5 of
Table 1 apply to these leads.

stone0371 发表于 2012-6-8 21:55:30

关于4.1.1.5描述的对象是,电池供电类产品。

如果电池器具有充电器(不管电池内置还是外置),则按照电源类器具的限值来测试。但是如果电池类器具的电池是内置,是不能外界充电器,则没有传导的限值要求(这个时候一般是要测量RE的)。如果电池外置,则需要满足电池与产品的连接线的长度大于2m,才有测试,此时测试限值选择的table1中的第4列和第5列的限值。

对于电池类产品,只要看能不能充电,电池外置还是内置来选择测试限值就可以了。这样很容易区分的。不多赘述。

stone0371 发表于 2012-6-9 09:58:30

4.1.2 Frequency range 30 MHz to 1 000 MHz
4.1.2.1 Disturbance power measurement in the frequency range 30 MHz to 300 MHz
The limits of the disturbance power are given in Table 2a. Disturbance power is measured in
accordance with Clause 6, at all terminals.

骚扰功率的测试频带是30M-300M。测量限值的图表在下图table2a中,骚扰功率需要在各个端子测量。

这个地方注意,端子的意义,因为EMC测量都是对端口而言的,则比如说空调室内机和室外机之间的连线是不测量骚扰功率的,因为它是整体的一部分,顶多可以算是外壳端口。

下面传上图表table 2a和table 2b。

stone0371 发表于 2012-6-9 09:59:48

table 2a中描述的家用电器和电动工的骚扰功率的限值。同样的电动工具也是根据电机功率的大小分为三个区间。
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查看完整版本: EN 55014-1 标准解读2