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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。。”( c1 z6 O5 P( V5 c: P- ~6 X' V5 q
9 y- O+ m8 s& }# D+ ~61347-1 IEC:2000+ K! O' u2 o2 L0 r, K7 e3 Y
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12 Electric strength
" V( w q6 F5 Y9 }* ~9 F( XLamp controlgear shall have adequate electric strength.1 O! W6 u0 y+ O( G0 H1 g: a
Immediately after the measurement of the insulation resistance, the lamp controlgear shall
; V% B& y1 i( v! Pwithstand an electric strength test for 1 min applied between the parts specified in clause 11.
/ l5 Y3 R7 C8 T' q8 n5 Y& DThe test voltage of substantially sine-wave form, having a frequency of 50 Hz or 60 Hz shall* k- y$ R1 O6 t+ W
correspond to the values in table 1. Initially, not more than half the specified voltage shall be. @: U- E5 G; H& D7 R/ V
applied, the voltage then being raised rapidly to the prescribed value.) Z! A: i& G1 @8 ]0 k+ o
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Table 1 – Electric strength test voltage
q5 H+ K. w+ wWorking voltage U Test voltageV
4 t. H/ U; i; O& JUp to and including 42 V 500
|" ]5 R) U; {8 q+ Z$ i1 R" fAbove 42 V up to and including 1 000 V 2 U + 1 0008 e* a R5 i. Q
# z: r! u9 D1 j: rNOTE 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." o" y& Q. {7 y0 t! x( O
The high-voltage transformer used for the test shall be so designed that when the output$ _3 y, P) M6 ]4 _9 `. t) b
terminals are short-circuited after the output voltage has been adjusted to the appropriate test0 b( j' V) {5 v: S
voltage, the output current is at least 200 mA.
! h2 u0 Q" n9 Z0 O) ^: f( E8 D8 T* C" cThe overcurrent relay shall not trip when the output current is less than 100 mA.
3 _! J7 N% V5 ~' YThe r.m.s. value of the test voltage applied shall be measured to within ±3 %.* x ]0 ^# g; ~/ r
The metal foil referred to in clause 11 shall be placed so that no flashover occurs at the edges3 J0 E/ J0 `" Q* q& R0 u1 [! l
of the insulation.
/ r+ } V) C" z) D3 N( HGlow discharges without drop in voltage are neglected. |
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