求教大神UL60730-1中H.8.1.10.1以下蓝色highlight部分？

jansle_happy

广东安规检测
有限公司提供：

小型摆管淋雨试验机

IPX5X6X7喷水试验机

1000L恒温恒湿箱

各种试验指现货

可程式恒温恒湿试验箱

水平垂直燃烧机

自动卷线器试验机

耐划痕试验机

各种灯头量规现货

灼热丝试验机现货

GB1002插头量规

IPX1-X7淋雨现货

IEC61347/UL935镇流器热试验箱

灯具防风罩

IK冲击试验机

UL498插头插座量规

VDE0620插头插座量规

稳定性试验台

家电温升测试角

针焰试验机现货

热电偶焊机现货

家电125mm试验指

E12灯头量规

无绳壶无绳电熨斗插拔寿命试验机

IEC60335试验指甲

求教大神UL60730-1中H.8.1.10.1以下蓝色highlight部分？不是参照figure E.1测试么，测试网络的电阻不是RS:1500Ω； RB:500Ω; R1:10000Ω么，另外这里所说的time constant of the circuit 是指什么？
, C" |# F' x+ x& G% ^# A; `6 [3 f" u; |

passagere

首先所示的电路图是根据该条款而设计的一条合适的测试电路。其实标准里并不是要求一定按照所示电路图去做测试电路，它只是一个例子。time constant of the circuit -- 电路的时间常数，请百度一下哈。

jansle_happy

9 l& B% h0 G! ?

passagere 发表于 2021-8-12 19:20
首先所示的电路图是根据该条款而设计的一条合适的测试电路。其实标准里并不是要求一定按照所示电路图去做测 ...

大神看起来，应该不是说figure E只是个列子吧，看起来原文是前面描述了测试电路的特性，然后给出具体的图书如图E啊。
6 }, ~  S/ a7 g! r3 `( RH.8.1.10 ACCESSIBLE PARTS shall not be considered as HAZARDOUS LIVE PARTS if separated from the supply by PROTECTIVE IMPEDANCE.
7 X; k" X. |3 f2 C! U7 k2 eH.8.1.10.1 When PROTECTIVE IMPEDANCE is used, the current between the part or parts and either pole of the supply source shall not exceed 0,7 mA (peak value) a.c. or 2 mA d.c;
– for frequencies exceeding 1 kHz, the limit of 0,7 mA (peak value) is multiplied by the value of the frequency in kHz but shall not exceed 70 mA (peak value);
– for voltages over 42,4 V (peak value) and up to and including 450 V (peak value), the capacitance shall
0 [5 q5 A# L- t7 Rnot exceed 0,1 μF;
– for voltages over 450 V (peak value) and up to and including 15 kV (peak value), the product of the capacitance in farads times the potential in volts shall not exceed 45 μC;
8 X5 f6 b) ]8 k8 K# y% `– for voltages over 15 kV (peak value), the product of the capacitance in farads times the square of the potential in volts shall not exceed 350 mJ.
: Z/ u. [2 }0 vCompliance is checked by measurement.
6 ?6 q3 m5 c9 L9 n$ K; vVoltages and currents are measured between a single ACCESSIBLE PART (or any combination of such parts)
  ?! U. d* R" o$ V  Mand the protective earth conductor. Measurements shall be taken in normal supply configuration, and with
  H5 m, B# A* j; Ssupply poles interchanged.
( n& H5 m( {( n( ~1 FThe measuring circuit shall have a total impedance of (1 750 ± 250) W and be shunted by a capacitor such
6 E( G( e2 y: y  u; Z# ?; g8 }that the time constant of the circuit is (225 ± 15) μs.
- [' k$ ]) q8 I( iDetails of a suitable measuring circuit are shown in Figure E.1.
The measuring circuit shall have an accuracy of within 5 % for all frequencies in the range of 20 Hz to 5
. H/ k  h  K4 D, C5 g2 NkHz. For frequencies above 5 kHz, alternative methods of measurement are required.

passagere

8 }4 {& l, Q4 |& u9 W) h
9 W4 w7 N5 a+ B( }- p与之相关度高的字句如下：


Details of a suitable measuring circuit are shown in Figure E.1此处显示"suitable"则表明此电路是**之一的意思，下句也类似：
: z3 l6 V  j- d; T( r8 nA suitable circuit (见插图上方文字描述的起始处)。
: D* W3 z- I9 U! e+ a
标明了阻抗范围，还并联电容。说实话，电路是有等效性的，不同的电路
8 }( r2 k) c* S* H$ d, `也一样可以做出这样的效果，于是，它列出了对测试电路的要求，并
给出了电路例子。
- n3 }: o  \: J# O+ |
这是我的理解，不尽然正确。
. a* g7 P/ ?5 Q) v* L

jansle_happy

passagere 发表于 2021-8-13 10:12
与之相关度高的字句如下：

5 R) c) u2 L3 t7 R  ^感谢大神分享

passagere

jansle_happy 发表于 2021-8-16 10:34
感谢大神分享

; y( O# E/ i% q" v7 X5 V你的帖子比我多多了，安规方面我也有缺点的，不是大神