本帖最后由 wawyp 于 2012-2-23 18:51 编辑
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此为一adapter,Rated input: 100-240V 0.35A 50/60Hz Single Phase
$ u4 W1 n$ e2 M6 H& F/ ~1 h Rated output: 5V 2A * C0 N) V: u# C$ K) H p2 G
Maximum Output Power: 10W5 G. p0 ~$ S) W8 R' R: Z2 \' e
Maximum Ambient: 40 C(度)
; F2 S, c% e* M" R7 O& c" N希望安规前辈能对data sheet中的点进行讲解(标准的理解,本项测试的本质,每项被测数据的测试方法,仪器选用的原则,测试过程中的注意事项),以供大家交流讨论以及新人学习之用,谢谢! n/ \, R$ y; K( y+ K1 G
; {, Y) r4 I$ G此节有2个版本data sheet,都放上来
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1.5.7.4, 2.4.2 – DOUBLE OR REINFORCED INSULATION BRIDGED BY COMPONENTS This test was conducted after Electric Strength Testing of the insulation. METHOD The unit was connected to ___ [V ac, __ Hz ] [V dc]. An IEC leakage current meter described in Annex D of UL 60950 and a switch were connected with the bridging component __CY1__ , The measured current was recorded. Measuring instrument used for test: Annex D.1 – Simpson 228
9 g! b3 d2 `1 k! \' g [ ] Other__________________ [ ] Annex D.2 – [ ] Simpson 229 -2 [ ] Other__________________ Measurements were made under both normal and single fault conditions as notes below. Y1 Capacitors were subjected to single fault conditions. RESULTS Location ( Component ) : CY1
( j0 A f0 e9 R4 _8 ^+ d; u+ I" bThe circuit”s available current [ complied ] [ did not comply ] with the current limits of 0.5mA rms ( 0.7 mA pk)
5 @7 o0 r7 U1 f$ o# e/ }NOTES TO LAB: 1. The current measured through the bridging component and the Annex D measuring instrument shall not exceed 0.5 mA ( 0.7 mA pk). NOTES TO ENGINEER: 1. Components subjected to single component fault conditions include IEC 384 -14, U, Y, Y2 or Y4 capacitors, or resistors which bridge double or reinforced insulation. IEC 60384 -14, Y1 capacitors were not faulted. ( S6 d, V+ n, Z0 w
二.2 1.5.7.4, 2.4.2 – DOUBLE OR REINFORCED INSULATION BRIDGED BY COMPONENTS This test was conducted after Electric Strength Testing of the insulation. METHOD PART1 The unit was connected to ___ [V ac, __ Hz ] [V dc]. A 2000Ω non-inductive resistor and a switch were connected between the load side of the bridging component __CY1__ , and [ protective earth ] [ neutral ]. A storage oscilloscope was connected across the points under consideration. The switch was closed and the following values were recorded: V p – Peak V dc – dc Voltage A p – Peak current = V p/2000 dc – dc current = V dc/2000 kHz – Circuit frequency in kilohertz In addition, a photograph or the waveform was made. Measurements were made under both normal and single fault conditions as notes below. Y1 Capacitors were subjected to single fault conditions. RESULTS PART1 Location ( Component ) : CY1 to [ protective earth ] [ neutral ] Condition | Volts , peak | Volts , dc | mAp | mA ,dc | Frequency kHz | Normal | | | | | | | | | | | | | | | | | |
The circuit”s available current [ complied ] [ did not comply ] with the current limits of a Limited Current Circuit. |