|
|
“有可能的话,将IEC 61347关于打高压的那段贴上来瞧瞧。。”2 K& J1 s! o# ?$ Q3 S. Z+ O
% ~9 v* X8 g) g+ l+ K61347-1 IEC:2000! g" s7 q$ }2 u, ^& k
; @- r% t& a, J v( v1 S; v: }
12 Electric strength# b" k" q5 o" I7 [/ q( |( l, n4 D
Lamp controlgear shall have adequate electric strength.
- ^8 p' x1 y9 |2 I; a! T) W: a3 YImmediately after the measurement of the insulation resistance, the lamp controlgear shall0 y5 X; p2 Q2 }7 R, \* A
withstand an electric strength test for 1 min applied between the parts specified in clause 11.. r% r4 H9 M/ n+ t, a
The test voltage of substantially sine-wave form, having a frequency of 50 Hz or 60 Hz shall. P& Y, W8 s2 b% [+ d
correspond to the values in table 1. Initially, not more than half the specified voltage shall be
: d1 _* \$ K# w! S) l, v5 |applied, the voltage then being raised rapidly to the prescribed value.
2 ~+ M/ T* q9 d, A5 I2 U3 X- |7 P9 ]9 K$ i8 t: T; t+ K$ f
Table 1 – Electric strength test voltage
+ w R" x/ i0 h, ~2 C9 B- T- a2 Z$ ?Working voltage U Test voltageV
2 u1 ~4 Z U, ?1 TUp to and including 42 V 5000 z0 M j1 B, m* x. o
Above 42 V up to and including 1 000 V 2 U + 1 000, b( x9 ?( p$ n: \" s
, u- s* l/ h) L Q# K' g, h$ m, p
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.
1 Q1 l# x+ [# W; q- b# \ v! \
7 r9 ^* A/ b9 L1 w: CNo flashover or breakdown shall occur during the test.
: i% @, Z# L; iThe high-voltage transformer used for the test shall be so designed that when the output
9 b( d% y3 v) j0 h5 vterminals are short-circuited after the output voltage has been adjusted to the appropriate test
+ z$ d( t3 v" w! M0 [* n+ b" H& nvoltage, the output current is at least 200 mA.
: _: r% e1 @+ p9 O' QThe overcurrent relay shall not trip when the output current is less than 100 mA.: n; {4 H3 L9 \- W7 f
The r.m.s. value of the test voltage applied shall be measured to within ±3 %.3 }5 C$ `& p4 P( T
The metal foil referred to in clause 11 shall be placed so that no flashover occurs at the edges
( Z0 ]* u$ d0 kof the insulation.8 C" {( K- ]+ b( e) q2 a
Glow discharges without drop in voltage are neglected. |
|