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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。。”
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! h! F% y% L G61347-1 IEC:2000& }' T/ T0 ^6 ^7 l
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12 Electric strength
1 l" }9 f/ _& l- K9 D0 C1 yLamp controlgear shall have adequate electric strength.* _, r. t4 n+ [# A* Y+ C4 B
Immediately after the measurement of the insulation resistance, the lamp controlgear shall4 G2 `$ X: J, V$ E
withstand an electric strength test for 1 min applied between the parts specified in clause 11.
" R4 n) }! }# o: J S$ S& DThe test voltage of substantially sine-wave form, having a frequency of 50 Hz or 60 Hz shall
" H3 J, e$ f& K8 lcorrespond to the values in table 1. Initially, not more than half the specified voltage shall be
1 h- d+ M u- Lapplied, the voltage then being raised rapidly to the prescribed value.
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Table 1 – Electric strength test voltage# u' T8 b* h5 F! Q$ p! [
Working voltage U Test voltageV$ f2 q$ P. T& m( T( t+ v3 [8 v
Up to and including 42 V 500
7 ^- r5 v' q+ d7 T* GAbove 42 V up to and including 1 000 V 2 U + 1 000: o- E' s- F7 S( M1 R
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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.
0 I' h2 I& v* qThe high-voltage transformer used for the test shall be so designed that when the output
1 G$ b5 K- m5 }4 Z1 p/ @terminals are short-circuited after the output voltage has been adjusted to the appropriate test
. `! M+ p/ X+ R! g" `) ?voltage, the output current is at least 200 mA.
' Q, U- k) b/ ]The overcurrent relay shall not trip when the output current is less than 100 mA.
: A1 w1 \; \" S' D8 iThe r.m.s. value of the test voltage applied shall be measured to within ±3 %.
5 }4 o8 Q) S- y4 c; d* lThe metal foil referred to in clause 11 shall be placed so that no flashover occurs at the edges
# f$ Z! J* j) \1 l4 eof the insulation.4 |6 z* g$ e0 T% z3 k, S) Y
Glow discharges without drop in voltage are neglected. |
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