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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。- e3 T) h% I* w; r( h: m9 T
现有:) U3 w; R( Y" |6 R) c" {
CY1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:
) i, u1 |- D- e" k6 R1. CY1电容耐压值应该更换为500V
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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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# g# r1 w# Z+ t# m% c1. 我想知道他们所说的耐压值什么意思?% `; @5 I* w$ l& e1 @
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2. IEC/EN61010-1:2010 是说的这个意思?
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下文为标准:! N" P% a/ {! i, W! ?$ A! c' ?4 w* U
6.5.4 PROTECTIVE IMPEDANCE
3 x% \) U0 w4 S8 H6 gA PROTECTIVE IMPEDANCE shall limit the current or voltage to the levels of 6.3.1 in NORMAL
* n$ y9 u6 g& j5 \7 H" BCONDITION and 6.3.2 in SINGLE FAULT CONDITION.- h" n& D Q& n. D8 Y
( _% Z0 A+ ]8 B, `5 u) K8 zInsulation between the terminations of the PROTECTIVE IMPEDANCE shall meet the requirements5 B4 E( [. T' x; j
of 6.7 for DOUBLE INSULATION or REINFORCED INSULATION.. u/ e# [# } x" y
& E! V9 t0 @7 G" s V+ OA PROTECTIVE IMPEDANCE shall be one or more of the following:
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! }) K; A1 x! R# {0 ga) 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 [* Z9 ~7 A5 {6 r& G
: i9 x- V( o4 n1) RATED for twice the maximum WORKING VOLTAGE;9 }6 P# w4 Q6 e( D4 }0 E( e
. ~: n% z' D& S7 K i8 P" x; }2) if a resistor, RATED for twice the power dissipation for the maximum WORKING VOLTAGE.
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b) a combination of components.
( V! e% ^5 U) o% L% J& UA PROTECTIVE IMPEDANCE shall not be a single electronic device that employs electron
4 |9 g' E% J# c9 b5 H0 W0 Vconduction in a vacuum, gas or semiconductor6 L, b( Q, |! [" F9 ~
Conformity is checked by inspection, by measuring the current or voltage to confirm that they
! \, C; N2 c& j. a- f& k! w/ R* E. Pdo not exceed the applicable levels of 6.3 and by measuring CLEARANCES and CREEPAGE" {$ G* g! V3 D
DISTANCES as specified in 6.7. Conformity of a single component is checked by inspection of
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