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“有可能的话,将IEC 61347关于打高压的那段贴上来瞧瞧。。” z9 ^3 }, D0 h3 t N1 \# N4 F" ?
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61347-1 IEC:2000
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12 Electric strength" F/ H" S+ s# ~* n1 S
Lamp controlgear shall have adequate electric strength.
4 ^: h: K$ M$ y1 c' `2 YImmediately after the measurement of the insulation resistance, the lamp controlgear shall
, a7 G2 l- f* b. jwithstand an electric strength test for 1 min applied between the parts specified in clause 11.! B& U) I/ _! V9 B1 i
The test voltage of substantially sine-wave form, having a frequency of 50 Hz or 60 Hz shall
7 R8 X7 u3 t2 E, ^: A6 k& qcorrespond to the values in table 1. Initially, not more than half the specified voltage shall be' B& Y0 P$ h. v: V8 l; k2 m( s
applied, the voltage then being raised rapidly to the prescribed value.
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Table 1 – Electric strength test voltage
% J8 w& l! }- a' UWorking voltage U Test voltageV
$ m1 b) }9 |+ t( \& \' ~Up to and including 42 V 500
! o1 u3 j% w( C5 ]- Y Y: yAbove 42 V up to and including 1 000 V 2 U + 1 000
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NOTE For convertors, the electric strength test between parts separated by reinforced insulation shall be in accordance with figure 9, curve B, of IEC 60065.
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No flashover or breakdown shall occur during the test.8 I0 X8 U8 t, e1 T' u
The high-voltage transformer used for the test shall be so designed that when the output
0 c5 E+ @5 G6 J# c' O# g& E. \( h5 `2 Xterminals are short-circuited after the output voltage has been adjusted to the appropriate test
1 x% ~ A9 O; l8 p, Gvoltage, the output current is at least 200 mA., J; C5 R6 Z7 ]5 b" y
The overcurrent relay shall not trip when the output current is less than 100 mA.
- E6 S* {! @3 EThe r.m.s. value of the test voltage applied shall be measured to within ±3 %.
5 O4 M! `6 n3 J4 _$ L5 B# jThe metal foil referred to in clause 11 shall be placed so that no flashover occurs at the edges" w7 {, v3 u! ]
of the insulation.
: m8 W+ b: I7 _; E0 tGlow discharges without drop in voltage are neglected. |
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