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请教高手: u# {, J4 y& r l# ~
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IEC/EN61010-1:2010 对跨接初级与次级Y电容有什么要求。/ d! z5 b( Z. R2 J' W
现有:4 H* f- L! n3 T$ N: K
CY1电容器跨接在初次级上,满足加强绝缘距离要求。* b, r p+ i1 ?( g/ v# [: G
! Z/ u- B6 B. N# u认证公司要求:% Y* d2 S! U, ~0 `6 L1 O- q# H
1. CY1电容耐压值应该更换为500V& B8 d# ?8 S% T5 I1 D* A
2. 或者采用两个CY2串联
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! y7 y2 p: d! ^" U! ^& a3 s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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1. 我想知道他们所说的耐压值什么意思?) Y. K# @# ~- q
3 ~# V$ A2 L- l. Z! Y+ u. K! X3 B/ d2. IEC/EN61010-1:2010 是说的这个意思?4 N3 p' H& ~' o0 g; M! D
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下文为标准:& n( J& _' e8 G0 j& E. ]/ S
6.5.4 PROTECTIVE IMPEDANCE
8 F! g$ L# A& p/ j1 \A PROTECTIVE IMPEDANCE shall limit the current or voltage to the levels of 6.3.1 in NORMAL
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Insulation between the terminations of the PROTECTIVE IMPEDANCE shall meet the requirements/ ]/ c+ |' V. |0 P! c1 d
of 6.7 for DOUBLE INSULATION or REINFORCED INSULATION.
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% `/ [ V) {0 }) N$ e3 K# I+ JA PROTECTIVE IMPEDANCE shall be one or more of the following:) E' V- }! q: M' y
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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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1) RATED for twice the maximum WORKING VOLTAGE;2 Z0 k* f. U) r2 Y% u
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2) if a resistor, RATED for twice the power dissipation for the maximum WORKING VOLTAGE.. E4 J. x1 Q" k; H5 |/ m, C
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b) a combination of components.- I. Z9 |/ w3 }% W- U# \: |% Y; s
A PROTECTIVE IMPEDANCE shall not be a single electronic device that employs electron. n3 A( d# h6 O4 J, L* r
conduction in a vacuum, gas or semiconductor' V5 k0 j. b/ W$ ?" [3 F7 b+ v. B
Conformity is checked by inspection, by measuring the current or voltage to confirm that they. J$ }; D! ?) E3 m) m" i6 Z
do not exceed the applicable levels of 6.3 and by measuring CLEARANCES and CREEPAGE l$ ^, G( y C# r$ x% L
DISTANCES as specified in 6.7. Conformity of a single component is checked by inspection of' W( L; k; i: S Q f
its RATINGS. |
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