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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。% j4 l4 O4 P: o/ S/ `) q m
现有:
! f6 F2 a8 W8 FCY1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:( v# z8 [" a7 j8 [/ n
1. CY1电容耐压值应该更换为500V! x0 d' V& b4 \
2. 或者采用两个CY2串联3 s) v0 f0 L% h
* X1 i) O( a; m: a, V) _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; M7 ^5 h/ \6 g3 _$ j) u: I
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1. 我想知道他们所说的耐压值什么意思?* e! `2 `% Q. D
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2. IEC/EN61010-1:2010 是说的这个意思?3 A0 Z' V# H- d) V6 X
, \: R1 R/ R. n/ d+ u下文为标准:
5 K! M, ?+ Q, W2 y# c! u, v4 Y0 }6.5.4 PROTECTIVE IMPEDANCE
& D" p8 n- K8 O$ n% n4 }# g# WA PROTECTIVE IMPEDANCE shall limit the current or voltage to the levels of 6.3.1 in NORMAL6 h: `/ S4 |7 y7 g0 a. 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 requirements
, l5 v# w& k$ l! L8 {* aof 6.7 for DOUBLE INSULATION or REINFORCED INSULATION.2 [' D3 R5 h f" ?
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A PROTECTIVE IMPEDANCE shall be one or more of the following: M4 F; o9 x4 i r* t e: c
9 m0 g) H" M# I0 ra) 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:0 J0 e# ^1 e+ f
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1) RATED for twice the maximum WORKING VOLTAGE;. z# P5 B6 b+ N a0 ~& W; {$ i3 e# g
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2) if a resistor, RATED for twice the power dissipation for the maximum WORKING VOLTAGE.
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7 `- E9 }; B7 l# bb) a combination of components.
. o+ l x& e0 MA PROTECTIVE IMPEDANCE shall not be a single electronic device that employs electron( _+ n% Q, {2 }$ c5 F
conduction in a vacuum, gas or semiconductor
5 ^) d4 [: `: U) t* Q! E8 {3 m) LConformity is checked by inspection, by measuring the current or voltage to confirm that they
: Z$ D" I( X4 E# S& { X; U1 s6 k3 Ndo not exceed the applicable levels of 6.3 and by measuring CLEARANCES and CREEPAGE& V9 Z5 E$ P, S$ b& f0 f
DISTANCES as specified in 6.7. Conformity of a single component is checked by inspection of' E; J) P4 d" f
its RATINGS. |
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