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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。。”; S" W: S# ]) n3 n0 _& m2 q
4 M$ `9 J: o9 M! a61347-1 IEC:2000$ Q, m. G% s% k) d# R3 p! J
) ` X! k' f: G12 Electric strength5 m3 F. y8 h8 n) O5 X
Lamp controlgear shall have adequate electric strength.8 Y5 a5 D! ^' x* {& B0 g
Immediately after the measurement of the insulation resistance, the lamp controlgear shall A, Z+ J' g$ i, d( c
withstand an electric strength test for 1 min applied between the parts specified in clause 11.
1 m' k' k9 G6 |! S$ v% PThe test voltage of substantially sine-wave form, having a frequency of 50 Hz or 60 Hz shall
/ J& }+ `7 ?; p. N# Qcorrespond to the values in table 1. Initially, not more than half the specified voltage shall be% g; E; \" }2 D: M8 o( E# A
applied, the voltage then being raised rapidly to the prescribed value.
7 D2 i# J) X) _, w( y: d9 | ^5 a# } h: m' q+ C
Table 1 – Electric strength test voltage
! R8 e2 M. B$ r3 \Working voltage U Test voltageV
0 k; q$ k ?' KUp to and including 42 V 500
8 _& t% k( S5 Y" `+ G, p/ G1 {Above 42 V up to and including 1 000 V 2 U + 1 000
o- L: S! d( E) M5 u8 v0 h$ Z {6 w& { K5 w# o) j
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.! j, ^' _) e9 a: V& |
; P5 r1 \! M2 f5 Y! }, g0 D! u( dNo flashover or breakdown shall occur during the test.
1 S; V# x4 [3 h k) q* z. GThe high-voltage transformer used for the test shall be so designed that when the output! E2 C+ |" s1 F/ e0 ~" V8 p
terminals are short-circuited after the output voltage has been adjusted to the appropriate test) W( d$ i# x: P
voltage, the output current is at least 200 mA.+ p7 M C4 w* A8 { x ?& e R
The overcurrent relay shall not trip when the output current is less than 100 mA.
9 g/ |0 Y$ o1 c; L1 }* ]5 cThe r.m.s. value of the test voltage applied shall be measured to within ±3 %.
# T. Z0 v3 G& F. C+ oThe metal foil referred to in clause 11 shall be placed so that no flashover occurs at the edges
2 o; @ z7 m+ r Kof the insulation.+ d( g' B7 m. l- p9 i% ?
Glow discharges without drop in voltage are neglected. |
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