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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。
% a7 v1 A: k" c4 M1 o) j% H z5 ?现有:
1 |: M+ h/ F) g: s4 h# n5 l; wCY1电容器跨接在初次级上,满足加强绝缘距离要求。; p4 q! y, \- c# v
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认证公司要求:
* N+ y+ [" w2 _- Q+ {% {; h1. CY1电容耐压值应该更换为500V
3 ^ {7 i- u5 |9 K2. 或者采用两个CY2串联
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2 t0 ] _- q. C1 @; Y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/ Z) V: O5 l1 t. c& y0 `) M5 W$ V
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1. 我想知道他们所说的耐压值什么意思?. j" ~" |- Y- c/ j5 m- A& G9 ?
4 Q+ i. ~" v7 _, ]5 \; m; i2. IEC/EN61010-1:2010 是说的这个意思?3 P4 F9 U4 ]/ g( k7 S/ n. {
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下文为标准:4 _0 D* R. Q% J5 d' H- P" ~9 I3 h
6.5.4 PROTECTIVE IMPEDANCE
, _+ x/ o, T$ |6 H6 }3 cA PROTECTIVE IMPEDANCE shall limit the current or voltage to the levels of 6.3.1 in NORMAL, x; `5 _+ U4 Y* B* S
CONDITION and 6.3.2 in SINGLE FAULT CONDITION.
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Insulation between the terminations of the PROTECTIVE IMPEDANCE shall meet the requirements6 L3 F9 c* p1 @ g* ~+ }
of 6.7 for DOUBLE INSULATION or REINFORCED INSULATION.% @ Z1 D/ c' @& a. E3 j
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A PROTECTIVE IMPEDANCE shall be one or more of the following:
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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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: D5 T) t% T$ Y3 ^, U* s. _0 F2) if a resistor, RATED for twice the power dissipation for the maximum WORKING VOLTAGE.1 u' @3 _+ ?$ Y
. t% \+ B/ W* wb) a combination of components.8 t# E) o; Y% V4 h
A PROTECTIVE IMPEDANCE shall not be a single electronic device that employs electron
# m6 l' J$ J J9 X tconduction in a vacuum, gas or semiconductor
2 N( i* v/ h k1 F h$ r- U( dConformity is checked by inspection, by measuring the current or voltage to confirm that they
7 M3 c+ c7 w$ j# L7 V0 x; Kdo not exceed the applicable levels of 6.3 and by measuring CLEARANCES and CREEPAGE$ Q' c" X7 N# t5 J
DISTANCES as specified in 6.7. Conformity of a single component is checked by inspection of- B1 W4 H5 z1 B' p( g
its RATINGS. |
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