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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。。”/ C, H: i) Y) k6 z% Z; E+ f
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61347-1 IEC:20007 B2 Q6 h- t/ {4 j- G- z1 V* w! U6 x
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12 Electric strength' v8 D2 d) H, a; \% W
Lamp controlgear shall have adequate electric strength.
- {% ^; @: v' iImmediately after the measurement of the insulation resistance, the lamp controlgear shall
4 r3 O9 a! S' O! _6 q/ W' @withstand an electric strength test for 1 min applied between the parts specified in clause 11.
* n, a/ `: _( B9 y' g7 b2 a; IThe test voltage of substantially sine-wave form, having a frequency of 50 Hz or 60 Hz shall
; G d4 k' D& i) U9 lcorrespond to the values in table 1. Initially, not more than half the specified voltage shall be
. `3 V. t5 R5 f5 C. F* Kapplied, the voltage then being raised rapidly to the prescribed value.# z9 ~/ \/ @. H/ b8 C& ?/ I( b
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Table 1 – Electric strength test voltage
3 D# M, [7 e8 C# F8 E6 m) c5 H1 @Working voltage U Test voltageV
# _ _8 I7 `- F. F1 m1 ?8 L+ U _Up to and including 42 V 500
g+ K5 v, P+ T- fAbove 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.% l9 ~, Q' J& V4 o" F9 `, l3 V! `: w- ^
The high-voltage transformer used for the test shall be so designed that when the output
4 R/ d% z, N/ q) W9 J5 Lterminals are short-circuited after the output voltage has been adjusted to the appropriate test( O2 Q8 s! o& X" o! T
voltage, the output current is at least 200 mA.' p V( T6 |$ c- [4 s- D
The overcurrent relay shall not trip when the output current is less than 100 mA.
8 v2 F' F. z3 n, ?The r.m.s. value of the test voltage applied shall be measured to within ±3 %.
7 S) \. l' Y" E7 G0 M( \The metal foil referred to in clause 11 shall be placed so that no flashover occurs at the edges
/ T+ m0 k* \- ]9 b/ F. G* }of the insulation.
* u6 X* W; |+ V* @; L& U* fGlow discharges without drop in voltage are neglected. |
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