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请教高手
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# x0 a! Y# B+ O6 }' ~# x; ^IEC/EN61010-1:2010 对跨接初级与次级Y电容有什么要求。
# n0 P, J8 k" u- O. b现有:& K/ f" j- |6 b* @. T3 }5 w
CY1电容器跨接在初次级上,满足加强绝缘距离要求。4 z$ A, A" k9 D6 p/ t
8 x! j: v7 f, `" ~) T/ y( p3 h认证公司要求:
7 I8 N4 P( v; R# D1. CY1电容耐压值应该更换为500V
" G. y) `0 f5 }2 v \0 X! Z! c+ s2. 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
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" E3 `. P0 L/ [& u8 M2 T, ]* a5 z1. 我想知道他们所说的耐压值什么意思?3 B5 h3 j1 n0 P( F* H; @8 T
2 }% P6 ~2 R7 `, y2. IEC/EN61010-1:2010 是说的这个意思?& o& Q) @' D" @
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下文为标准:
9 m6 ^( `8 J2 @, w6.5.4 PROTECTIVE IMPEDANCE3 @* L; u7 r7 P' M* H
A PROTECTIVE IMPEDANCE shall limit the current or voltage to the levels of 6.3.1 in NORMAL
! e/ r. ]9 w; I, M9 R6 u, C* rCONDITION and 6.3.2 in SINGLE FAULT CONDITION.$ z( l$ i' I& \( Q
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Insulation between the terminations of the PROTECTIVE IMPEDANCE shall meet the requirements
% Y7 x9 } R6 ~of 6.7 for DOUBLE INSULATION or REINFORCED INSULATION.$ T) x9 j* R+ \8 {$ F
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A PROTECTIVE IMPEDANCE shall be one or more of the following:
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X3 B$ P9 b+ C# L/ ~8 ~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.
: z+ |7 s' T1 h7 M o' SA PROTECTIVE IMPEDANCE shall not be a single electronic device that employs electron
0 m) x' [; Z% o9 K( s0 @conduction in a vacuum, gas or semiconductor
8 L$ h4 g" \9 H' Z8 ~2 vConformity is checked by inspection, by measuring the current or voltage to confirm that they: V0 W0 ?/ M, I( H% o% a
do not exceed the applicable levels of 6.3 and by measuring CLEARANCES and CREEPAGE! r# q' P1 \, m# s) _) `5 [* o( Q0 v. |
DISTANCES as specified in 6.7. Conformity of a single component is checked by inspection of0 Z9 z( y E' v5 |0 s9 P
its RATINGS. |
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