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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。) i, g* @" I& Q7 c$ m# Y3 ?5 I" c
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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。. n: f3 d/ e( k. n o
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认证公司要求:! g! j9 T1 Y( r& C* n
1. CY1电容耐压值应该更换为500V$ |. r, K z8 M. o
2. 或者采用两个CY2串联' Z. E$ l; s( c. p5 q; o
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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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0 L, x% E; D3 I [( |6 e1. 我想知道他们所说的耐压值什么意思?
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* g. S% ~ o* q% |2. IEC/EN61010-1:2010 是说的这个意思?+ W4 l! }! u }% g) Q6 r
6 p) c( j3 V* n" j7 D下文为标准:
6 N9 R9 }: k( o5 M7 s6 H! \6.5.4 PROTECTIVE IMPEDANCE
* L' T+ I" E" h# ^A PROTECTIVE IMPEDANCE shall limit the current or voltage to the levels of 6.3.1 in NORMAL
) J; V! p6 u! p1 ?$ tCONDITION and 6.3.2 in SINGLE FAULT CONDITION.7 Y B! T+ a& g! S# L( g
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Insulation between the terminations of the PROTECTIVE IMPEDANCE shall meet the requirements
/ ^/ J: ?6 A3 x$ q; w' s5 Yof 6.7 for DOUBLE INSULATION or REINFORCED INSULATION.
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g$ u! ^4 h- m+ O) s" ?. lA PROTECTIVE IMPEDANCE shall be one or more of the following:
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V2 z& u4 o2 h+ Ca) 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:1 d. \) k/ Z& w W
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1) RATED for twice the maximum WORKING VOLTAGE;1 F2 P; T! H6 p2 S( W; B1 E
5 c( O% M/ K) ^5 @" s2) if a resistor, RATED for twice the power dissipation for the maximum WORKING VOLTAGE.- ^( T# X( T2 Y
- f5 u2 J/ e, \8 ^5 f* a4 ^! t. }) Tb) a combination of components.1 K; h3 k2 O1 Q. h: O4 w
A PROTECTIVE IMPEDANCE shall not be a single electronic device that employs electron1 }7 }6 R" g" k2 T2 e& C+ _' P0 i
conduction in a vacuum, gas or semiconductor- T2 R. i7 i3 C% x S6 u, ?
Conformity is checked by inspection, by measuring the current or voltage to confirm that they
% ^2 n Y, v9 y, Ydo not exceed the applicable levels of 6.3 and by measuring CLEARANCES and CREEPAGE
( q3 ?; P4 T5 L+ g. ]DISTANCES as specified in 6.7. Conformity of a single component is checked by inspection of
, [( w1 K3 s0 l/ lits RATINGS. |
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