IEC/EN61010-1:2010 对跨接初级与次级Y电容的要求。

wangwei · 发表于 2011-11-16 10:23

请教高手

IEC/EN61010-1:2010 对跨接初级与次级Y电容有什么要求。
现有：
CY1电容器跨接在初次级上，满足加强绝缘距离要求。

认证公司要求：
1. CY1电容耐压值应该更换为500V
2. 或者采用两个CY2串联

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

1. 我想知道他们所说的耐压值什么意思？

2. IEC/EN61010-1:2010 是说的这个意思？

下文为标准：
6.5.4 PROTECTIVE IMPEDANCE
A PROTECTIVE IMPEDANCE shall limit the current or voltage to the levels of 6.3.1 in NORMAL
CONDITION and 6.3.2 in SINGLE FAULT CONDITION.

Insulation between the terminations of the PROTECTIVE IMPEDANCE shall meet the requirements
of 6.7 for DOUBLE INSULATION or REINFORCED INSULATION.

A PROTECTIVE IMPEDANCE shall be one or more of the following:

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:

1) RATED for twice the maximum WORKING VOLTAGE;

2) if a resistor, RATED for twice the power dissipation for the maximum WORKING VOLTAGE.

b) a combination of components.
A PROTECTIVE IMPEDANCE shall not be a single electronic device that employs electron
conduction in a vacuum, gas or semiconductor
Conformity is checked by inspection, by measuring the current or voltage to confirm that they
do not exceed the applicable levels of 6.3 and by measuring CLEARANCES and CREEPAGE
DISTANCES as specified in 6.7. Conformity of a single component is checked by inspection of
its RATINGS.

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