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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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1 j, B& p6 `: P61347-1 IEC:20007 |5 Y1 _' u. m9 o
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12 Electric strength
4 W# ~2 }. {7 U6 o2 I% j, R9 f' m( k* hLamp controlgear shall have adequate electric strength.! N$ r) k+ Q1 o4 ~( s
Immediately after the measurement of the insulation resistance, the lamp controlgear shall4 g$ \" L S8 ?+ [
withstand an electric strength test for 1 min applied between the parts specified in clause 11.* ~0 c5 L; c0 u0 T3 b
The test voltage of substantially sine-wave form, having a frequency of 50 Hz or 60 Hz shall4 d' g+ P; G4 d, f% \
correspond to the values in table 1. Initially, not more than half the specified voltage shall be, L# G' M9 A8 M
applied, the voltage then being raised rapidly to the prescribed value.! O/ f. F/ P. Q& _ T$ `. I
2 x; w8 p5 ?0 A1 ]( V$ l8 ^ Table 1 – Electric strength test voltage$ G' {* n5 r i
Working voltage U Test voltageV
: ]* T) |) U7 {5 R0 ]3 gUp to and including 42 V 500
' {6 F/ S/ Z* C% ?8 fAbove 42 V up to and including 1 000 V 2 U + 1 000
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8 H, U; C0 Q) ]: n8 gNOTE For convertors, the electric strength test between parts separated by reinforced insulation shall be in accordance with figure 9, curve B, of IEC 60065.+ @; L X% q/ `; v
! v; g* e- n, y! W- L. H! K& m H; sNo flashover or breakdown shall occur during the test.
3 d& t" Y1 p( H5 O( t/ h- `+ {! BThe high-voltage transformer used for the test shall be so designed that when the output& l5 O5 r: ]# r
terminals are short-circuited after the output voltage has been adjusted to the appropriate test* d% ^7 ^' n1 Z$ B' F
voltage, the output current is at least 200 mA.
5 i, h& j8 D- { H& y3 yThe overcurrent relay shall not trip when the output current is less than 100 mA.
8 T9 a* l& E! d) V8 _ t, ^The r.m.s. value of the test voltage applied shall be measured to within ±3 %.
' t- l' \! p* U: s7 C+ QThe metal foil referred to in clause 11 shall be placed so that no flashover occurs at the edges( t9 z4 R- f+ S0 B O
of the insulation.
# x$ ]) k y5 n& GGlow discharges without drop in voltage are neglected. |
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