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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。。”, A* t2 s! j7 G3 E
9 ?% I$ T8 Q1 [+ n6 h' o8 K" }; V5 J61347-1 IEC:2000
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. ?7 p2 b2 i5 `/ }$ Z5 y12 Electric strength0 j. l8 V0 ?0 a1 ~) {5 s6 y
Lamp controlgear shall have adequate electric strength.
. j4 y5 m9 x7 w) y/ t6 y* W9 zImmediately after the measurement of the insulation resistance, the lamp controlgear shall
: z/ M. L" M# k* i. Pwithstand an electric strength test for 1 min applied between the parts specified in clause 11., ]! p$ _' F* m. r2 d( O+ K
The test voltage of substantially sine-wave form, having a frequency of 50 Hz or 60 Hz shall8 T" I f9 g5 J2 _, Q+ \0 l" x
correspond to the values in table 1. Initially, not more than half the specified voltage shall be
0 ?; U5 @. F- J/ p4 q# w1 k J) _applied, the voltage then being raised rapidly to the prescribed value.! A) F/ b" O9 ?0 a/ w
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Table 1 – Electric strength test voltage' Q# \6 \% F8 v9 _& J7 B
Working voltage U Test voltageV, L/ [* V' k2 \ F( U- o7 O
Up to and including 42 V 500
6 \; S+ O3 z) P6 f5 }; q3 PAbove 42 V up to and including 1 000 V 2 U + 1 000
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! Q- O1 b7 q( ]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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3 {" @2 o" I9 m5 b! J5 ^5 RNo flashover or breakdown shall occur during the test.
! Y( O7 V# F1 \$ X- E4 E E& M& pThe high-voltage transformer used for the test shall be so designed that when the output7 b; M" y& d+ h
terminals are short-circuited after the output voltage has been adjusted to the appropriate test6 d& H9 R; o8 l4 K$ P
voltage, the output current is at least 200 mA.: M0 [: V* w& {
The overcurrent relay shall not trip when the output current is less than 100 mA.! |6 S( Y- z1 H& l" l2 w
The r.m.s. value of the test voltage applied shall be measured to within ±3 %.
) a. v9 U! ]5 ], n4 G$ J) GThe metal foil referred to in clause 11 shall be placed so that no flashover occurs at the edges; c, b5 u- k z9 h H
of the insulation.8 \+ o: b: F$ |5 i
Glow discharges without drop in voltage are neglected. |
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