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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。。”4 C3 J, G. |) k; s. [( `
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61347-1 IEC:2000' w* M1 l0 `3 ^ Y+ T+ v9 A5 S
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12 Electric strength) O# m9 ]2 T- Y' s
Lamp controlgear shall have adequate electric strength.
, h- Q1 ?5 W% X; ?) P- YImmediately after the measurement of the insulation resistance, the lamp controlgear shall/ p1 J2 s0 d' n
withstand an electric strength test for 1 min applied between the parts specified in clause 11.
! W. T- O( B1 r( nThe test voltage of substantially sine-wave form, having a frequency of 50 Hz or 60 Hz shall% m: U) [1 s/ ~) I& k
correspond to the values in table 1. Initially, not more than half the specified voltage shall be) m. d, k$ n( m2 P: B
applied, the voltage then being raised rapidly to the prescribed value.
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( c. y: I' Y. k& b' ?1 Y$ K: Z Table 1 – Electric strength test voltage9 Y: o8 g- K' m% m
Working voltage U Test voltageV! W2 _* `# i* Z/ o; Y& v
Up to and including 42 V 5003 ^1 s" K5 k2 a$ \1 J/ K. |' n
Above 42 V up to and including 1 000 V 2 U + 1 000
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7 B4 j; N, J. D8 a' F6 }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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' ]& O3 u* h0 zNo flashover or breakdown shall occur during the test.4 L# F# [% D+ L4 G% i8 y/ ?
The high-voltage transformer used for the test shall be so designed that when the output4 f* @: A/ f0 u" y8 Z1 w
terminals are short-circuited after the output voltage has been adjusted to the appropriate test6 B4 u4 b1 Y; ]0 D) ^
voltage, the output current is at least 200 mA.& }+ q8 S4 q& Y; K# y
The overcurrent relay shall not trip when the output current is less than 100 mA.' w7 {* h5 K7 D. y( J7 D6 v, i
The r.m.s. value of the test voltage applied shall be measured to within ±3 %.
R1 D9 Y# w) s! _% I4 k6 jThe metal foil referred to in clause 11 shall be placed so that no flashover occurs at the edges
+ {+ o! ~( f B" l1 h5 Qof the insulation.
& g3 e. W1 c% Q% r1 K6 ~3 rGlow discharges without drop in voltage are neglected. |
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