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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。
6 N, z8 V5 r ^; J6 T- P现有:
2 L* U/ ]! t/ x7 p# e: K- uCY1电容器跨接在初次级上,满足加强绝缘距离要求。
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认证公司要求:, S& o1 C5 k$ s, |6 t) E
1. CY1电容耐压值应该更换为500V6 S5 _% }: x$ ?4 s' [- ~
2. 或者采用两个CY2串联
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; ~. f j& p8 f; [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& N. ?7 [ r3 y S* Z0 j/ S5 S
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1. 我想知道他们所说的耐压值什么意思?- ~$ T2 G& }$ r2 f( |
: V* A: C3 t; c+ ?3 E5 ?2. IEC/EN61010-1:2010 是说的这个意思?
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4 t4 ]* k) h0 m, N R下文为标准:# _: q; t8 f- c& t2 K
6.5.4 PROTECTIVE IMPEDANCE* F+ [5 L( _' i( W8 G. E. N p J
A PROTECTIVE IMPEDANCE shall limit the current or voltage to the levels of 6.3.1 in NORMAL
; S8 Y8 E3 I( a4 hCONDITION and 6.3.2 in SINGLE FAULT CONDITION.& p! e6 O6 l+ \1 S) y$ p9 e
0 n" _ ~$ g$ v$ c0 N2 o9 e! nInsulation between the terminations of the PROTECTIVE IMPEDANCE shall meet the requirements
9 j0 n8 D# j4 i# d; xof 6.7 for DOUBLE INSULATION or REINFORCED INSULATION., v+ f" z* |+ q! U# S) w# v- w
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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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. ?# A9 [- x0 x& Q) i- t$ ?2 B1) RATED for twice the maximum WORKING VOLTAGE;
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1 S0 K* ]4 z0 W8 I9 I2 ~5 P" B2) if a resistor, RATED for twice the power dissipation for the maximum WORKING VOLTAGE.
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b) a combination of components.
- m$ [3 q, u( k0 CA PROTECTIVE IMPEDANCE shall not be a single electronic device that employs electron3 Y% P# D3 [: \/ [0 j& Y$ ~
conduction in a vacuum, gas or semiconductor
" H: v" ?2 q) s( ^: k; C+ E; WConformity is checked by inspection, by measuring the current or voltage to confirm that they
7 s! m$ _4 G% f; P( ]7 \" Rdo not exceed the applicable levels of 6.3 and by measuring CLEARANCES and CREEPAGE8 H/ t: M' F3 o* h/ U$ A
DISTANCES as specified in 6.7. Conformity of a single component is checked by inspection of+ ]9 U) B% E5 c. S" o* d0 w
its RATINGS. |
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