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请教高手! @4 k: h! T3 {6 @3 j+ @; @
( |# I+ e; V, q; E% ~IEC/EN61010-1:2010 对跨接初级与次级Y电容有什么要求。( R' d" N0 T5 r( |: G
现有: ^6 ~3 Q0 [% m4 `; f! m# `
CY1电容器跨接在初次级上,满足加强绝缘距离要求。7 D6 K) Q, z) w8 R
+ J* T/ I$ @2 ~' z6 `认证公司要求:% W; |# @: a& N6 i5 }( O$ S
1. CY1电容耐压值应该更换为500V5 s2 U R! Z5 |7 ?, U @5 M
2. 或者采用两个CY2串联
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9 c! k K3 B+ @5 |) U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5 n8 V# O4 n0 ]9 z% u
2 j; x9 F7 y; x5 d0 s f) ]1. 我想知道他们所说的耐压值什么意思?
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3 B' ]* e; B0 V# D& l# ?2. IEC/EN61010-1:2010 是说的这个意思?
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下文为标准:
/ C: u# ~* v* k6.5.4 PROTECTIVE IMPEDANCE1 y1 ~- U) R9 R9 ?7 m! B, I7 k
A PROTECTIVE IMPEDANCE shall limit the current or voltage to the levels of 6.3.1 in NORMAL* G: n: L. P! t, w
CONDITION and 6.3.2 in SINGLE FAULT CONDITION.
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/ o( w& D h& P( H$ cInsulation between the terminations of the PROTECTIVE IMPEDANCE shall meet the requirements) ^1 }6 g0 X* G" M3 h5 y# h2 D6 I
of 6.7 for DOUBLE INSULATION or REINFORCED INSULATION.5 _7 c6 C. V3 e. G
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A PROTECTIVE IMPEDANCE shall be one or more of the following:
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% G3 o# }0 ~3 i; _2 @, ba) 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:7 i$ b) K! z- C6 o/ k" c5 m1 v
( c" f. D) a8 W/ T* F1) RATED for twice the maximum WORKING VOLTAGE;
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% k3 \9 \2 e# S0 _/ s: Q1 ~5 x2) if a resistor, RATED for twice the power dissipation for the maximum WORKING VOLTAGE.; Q3 q9 q8 b7 @4 k
$ @" f8 o: ~6 o# \2 L qb) a combination of components.
1 f" m# Z) V! {0 r- l; p$ J4 ~A PROTECTIVE IMPEDANCE shall not be a single electronic device that employs electron
; U0 m4 E% Z; ?1 Y' p* Gconduction in a vacuum, gas or semiconductor
4 Z3 q* @; d. t2 _5 Z1 jConformity is checked by inspection, by measuring the current or voltage to confirm that they3 B' I* Y) _& @. c& u9 m) U4 M, z5 U
do not exceed the applicable levels of 6.3 and by measuring CLEARANCES and CREEPAGE# E9 q N& S8 u" V2 l" ~
DISTANCES as specified in 6.7. Conformity of a single component is checked by inspection of. u( Y" ]; P; s& _5 q
its RATINGS. |
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