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请教高手
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" e5 T: R. [- C3 i2 Z. TIEC/EN61010-1:2010 对跨接初级与次级Y电容有什么要求。7 @. R4 w1 H, u, d2 a6 \
现有:
7 k$ d: z$ [( n j0 ~% U O, UCY1电容器跨接在初次级上,满足加强绝缘距离要求。, X6 w+ g# g- D. T
, L7 A5 r( P" c5 I7 p认证公司要求:
1 A: k# Y0 \+ ?& g1. CY1电容耐压值应该更换为500V
9 G- L( s8 `7 w1 p2. 或者采用两个CY2串联
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! z6 z* L5 s* H# r3 U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4 c& _6 N' Y; V- _9 r0 o
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1. 我想知道他们所说的耐压值什么意思?) y7 K' a4 r8 y& {* b# B4 b; j
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2. IEC/EN61010-1:2010 是说的这个意思?" o4 E2 r2 m3 C. z
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下文为标准:
: C+ S- r' ], d, W* w0 m8 ]! C0 F6.5.4 PROTECTIVE IMPEDANCE
# \- n! s/ X3 ?; c' P, \2 ^A PROTECTIVE IMPEDANCE shall limit the current or voltage to the levels of 6.3.1 in NORMAL
' A, G3 s+ b& _' O: RCONDITION and 6.3.2 in SINGLE FAULT CONDITION.* C1 _6 q/ }3 B5 s! }
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Insulation between the terminations of the PROTECTIVE IMPEDANCE shall meet the requirements
- [1 l7 F4 Y. _' gof 6.7 for DOUBLE INSULATION or REINFORCED INSULATION.
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4 W# {. V8 O8 h/ f2 H9 [) I sA PROTECTIVE IMPEDANCE shall be one or more of the following:& m/ n' A3 g' d3 _
, ^% Q6 g2 T" R0 M4 A# ^8 {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;
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9 Y W8 W5 c2 T; C* A# R" h5 E2) if a resistor, RATED for twice the power dissipation for the maximum WORKING VOLTAGE.2 f* x& L( l3 j2 A1 J" D2 _( `8 j" m
, ?- F# w/ z& G7 v# J* g# v! m3 `b) a combination of components./ I( J/ W6 z3 U8 b [
A PROTECTIVE IMPEDANCE shall not be a single electronic device that employs electron
) g: E" H9 N; i. G- Y. Sconduction in a vacuum, gas or semiconductor
" y1 ~) w2 W! ?/ f* x8 t; S sConformity is checked by inspection, by measuring the current or voltage to confirm that they
2 \; ]( b0 P% I/ R9 s& l, kdo not exceed the applicable levels of 6.3 and by measuring CLEARANCES and CREEPAGE) M8 p Z a8 ]2 H
DISTANCES as specified in 6.7. Conformity of a single component is checked by inspection of2 i8 h3 N. L$ C$ L9 O
its RATINGS. |
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