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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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- o# O* W; J( B5 c% E61347-1 IEC:2000+ _# s% e0 q# r' V1 m
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12 Electric strength2 n; _ s) i) j+ u8 ]2 r+ k
Lamp controlgear shall have adequate electric strength.; ^$ B3 \9 z# A X
Immediately after the measurement of the insulation resistance, the lamp controlgear shall
0 Q @* D0 f0 v' @$ c8 awithstand an electric strength test for 1 min applied between the parts specified in clause 11./ \0 D1 g; {8 ?- s. ?* R0 s
The test voltage of substantially sine-wave form, having a frequency of 50 Hz or 60 Hz shall7 d4 k I0 ]# B. f* ^" _1 T6 b
correspond to the values in table 1. Initially, not more than half the specified voltage shall be
0 ] U& m) L; [applied, the voltage then being raised rapidly to the prescribed value.! B7 z9 ]( L4 E
. W7 I* ?* ?' L! U3 |* ~) b Table 1 – Electric strength test voltage6 h4 W. ]' Y) ]7 T) v# }8 e5 B
Working voltage U Test voltageV$ e, P$ u) n$ F; B1 W4 t3 g5 ]8 S
Up to and including 42 V 5000 z9 _; a3 N3 o( x7 \
Above 42 V up to and including 1 000 V 2 U + 1 000
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/ }! s1 o% G) G+ @' |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.; k v) S, f4 v* {6 E$ I" K
5 T8 I) l( [% w! a/ ONo flashover or breakdown shall occur during the test.
( M, A8 R! q# D% B( b2 x/ DThe high-voltage transformer used for the test shall be so designed that when the output% h4 h( ~3 C0 ^- s1 Z2 l
terminals are short-circuited after the output voltage has been adjusted to the appropriate test
3 K8 v- t+ g3 y3 p$ K/ A, Kvoltage, the output current is at least 200 mA.
- t) {- A; K) _- [# }The overcurrent relay shall not trip when the output current is less than 100 mA./ n w9 T: a/ R+ S$ Z% `1 w2 L
The r.m.s. value of the test voltage applied shall be measured to within ±3 %.6 _1 R7 ]" @2 i
The metal foil referred to in clause 11 shall be placed so that no flashover occurs at the edges
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b0 E) i I) aGlow discharges without drop in voltage are neglected. |
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