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请教高手
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IEC/EN61010-1:2010 对跨接初级与次级Y电容有什么要求。- p. E8 ?& U" e# ^
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CY1电容器跨接在初次级上,满足加强绝缘距离要求。( L: O2 ?( l/ W a2 ]
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认证公司要求:
7 N1 ~& U4 X; ~" N E, N1. CY1电容耐压值应该更换为500V
6 J8 F$ n: ~1 z$ a9 [' w' E- ]2. 或者采用两个CY2串联
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目的:因为EN61010-1标准要求CY1必须要有2倍工作电压的耐压值: a- m- y5 b+ g! O% v; o. B5 `3 [9 J5 ?
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1. 我想知道他们所说的耐压值什么意思?/ i, h" g( ~9 [: T
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2. IEC/EN61010-1:2010 是说的这个意思?; `$ q+ T3 ]/ |" x8 v `% I
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下文为标准:
0 o0 q+ P2 w" |6.5.4 PROTECTIVE IMPEDANCE
9 t2 W8 W5 J" PA PROTECTIVE IMPEDANCE shall limit the current or voltage to the levels of 6.3.1 in NORMAL V2 L/ L P1 u; Y! C- E
CONDITION and 6.3.2 in SINGLE FAULT CONDITION. _2 c' o9 e3 {( Y3 J
" _; D7 i5 S) _# wInsulation between the terminations of the PROTECTIVE IMPEDANCE shall meet the requirements
8 Q6 _* U+ t) S) pof 6.7 for DOUBLE INSULATION or REINFORCED INSULATION.
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d* W$ j7 f0 J$ \0 c% nA PROTECTIVE IMPEDANCE shall be one or more of the following:' _; X3 h) X; W8 H
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a) an appropriate single component which shall be constructed, selected and tested so that safety and reliability for protection against electric shock is assured. In particular, the component shall be:
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1) RATED for twice the maximum WORKING VOLTAGE;
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2) if a resistor, RATED for twice the power dissipation for the maximum WORKING VOLTAGE.
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b) a combination of components., J2 J$ C* m5 k |; g
A PROTECTIVE IMPEDANCE shall not be a single electronic device that employs electron
4 v# u8 E6 V4 j$ G) qconduction in a vacuum, gas or semiconductor
# X- G* w( ~" l! m# F+ G: L; bConformity is checked by inspection, by measuring the current or voltage to confirm that they# V( d- l3 G# f" P/ p! M: c% C
do not exceed the applicable levels of 6.3 and by measuring CLEARANCES and CREEPAGE; f1 l$ B2 i) z1 V7 {9 \, Z
DISTANCES as specified in 6.7. Conformity of a single component is checked by inspection of
/ i& S; ]3 _* \4 _, Y8 {its RATINGS. |
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