测试电压选取的由来？（60601-1，9706.1）

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条款19： 漏电流测试中明确要求使用110％的网电；
1 Y0 F# H2 `* N) w这是考虑实际使用中的电网允许有10％的波动，这是否意味着所有相关测试都应如此考虑，比如：
2 H8 y3 E: ]# w' T8 I# X# j# b9 T+ ~- ^剩余电压测试，工作电压测试，输入功率？
可是标准中只写选取额定电压范围的上限
问题折腾很久了，请高手赐教......

316979109

电网的波动按照10%来考虑，按照标准要求除了剩余电压，其他的漏电流、功率、超温等等都应该考虑+-10%，即：最高额定网电源电压的1.1倍或是0.9倍。。。
3 O0 J) a- T' N' p2 ~
1 d& l8 O! S. J3 ~2 u$ [关于剩余电压标准中只要求是在额定电压下或是额定电压范围上限的电压运行。。。。

chenyuen

一般的国家电网正常波动在7%左右，标准规定10%可以满足正常波动的需要，只要电压的变化会造成试验结果的变化的项目，都必须考虑，例如漏电流、剩余电压、功率等等都应该考虑。

painkillor

就IEC6061中来说，110%额定电压并不作为单一故障状态，而10.2.2中也说明了电压可波动10%，所以个人认为，本标准中所有与电压相关的实验都可用110%额定电压进行实验。

kevin.yan

请注意比较以下的两条来自标准的条款：
剩余电压：
EQUIPMENT is operated at RATED voltage or at the upper limit of the RATED voltage range.
漏电流测试：
With a supply equal to 110% of the highest RATED MAINS VOLTAGE.
& `' I' C% `' ~) E* i同是rated voltage, 如何理解呢？

y2yin

FYI, only applicable to the part of capacitor discharge test:
- E  D1 O; J8 x: |1 ^To ensure patients and equipment operators are not exposed to hazardous energy levels, voltage levels are measured on all mains terminals accessible after disconnection. With the unit
, @+ P( r$ }& b6 R( @/ u5 R# [operating at 110 % of the rated voltage, power is disconnected and the voltage decay at the mains connection is recorded. The voltage should decay to a level of 60 VDC or less within 1 second. The test is repeated ten times for each pair of the measurement points. The theory is that in those ten times, you will catch the AC waveform discharging at or close to the peak of the mains voltage cycle. It is at the peak where you will have the highest voltage and the longest decay
' `3 Z1 |3 L; F5 Q% A% Stimes. An alternative method of establishing the discharge characteristics of the unit is simply just to monitor the waveform on an oscilloscope and keep connecting and disconnecting the power until a peak reading occurs. By this method, you can see visually when the AC power waveform has been shut off at the peak level and a single measurement can be recorded and reported.

Author: Steven Henderson is a Product Safety Manager at Curtis-Straus LLC.

artscan

看看10.2.2就明白了.

kevin.yan

Equipment is operated at rated voltage 请注意看这个话中的rated voltage.是额定电压下测试，而不是正常状态。
另外可以参考下UL的test datasheet 中的描述
The equipment was operated for 1 min at rated voltage or at the upper limit of the rated voltage.  Then the sample was de-energized by removal of the power cord plug from the supply source.  One second after disconnection the voltage between points specified below was measured.  A storage oscilloscope with probes having an impedance of at least 100 MΩ or similar high impedance instrument was used for this measurement.  The test was repeated ten times for each pair of the measurement points.

nesta

引用第8楼kevin.yan于2009-03-06 11:43发表的  :
! C7 V2 }7 L, e9 f' ?9 b! j剩余电压测试除外，该测试是在额定电压下进行。请参看标准15章节中 ‘Equipment is operated at rated voltage and then de-energized'.

你的观点错误，110％的额定电压也是正常状态，剩余电压测试也要用110％的电压

kevin.yan

剩余电压测试除外，该测试是在额定电压下进行。请参看标准15章节中 ‘Equipment is operated at rated voltage and then de-energized'.