标题: IEC60950-1TABLE H2请教 [打印本页] 作者: jianfie 时间: 2011-6-15 11:05 标题: IEC60950-1TABLE H2请教 IEC60950-1TABLE H2中备注B：8 s; g+ X# @' @, }# m7 ?# v6 J
b The WORKING VOLTAGE of the SUPPLEMENTARY INSULATION between an ELV CIRCUIT or a basic-insulated conductive part and an unearthed accessible conductive part is equal to the most onerous WORKING VOLTAGE for the BASIC INSULATION. The most onerous WORKING VOLTAGE may be due to a PRIMARY CIRCUIT or 3 H S+ Y X+ L* V. u" O
SECONDARY CIRCUIT and the insulation is specified accordingly. / M% y* q4 ^* x2 |9 Q% I9 i工作电压等于基本绝缘上最严酷的工作电压，这个工作电压到底量什么地方？？？？？! b9 h- J0 C! P$ `/ a2 @7 V
求高手解答作者: June.Zhao 时间: 2011-6-15 11:56
后面那句话说的是：这个最不利的工作电压可以取决于初级电路或者是次级电路和相应的绝缘，, j4 Z5 h& ?. t& Z1 a
其实还是要测试ELV和未接地的可接触部分之间，我所知道的只有白炽灯才有ELV电路作者: Alexsong 时间: 2011-6-18 12:03
标准原意为：对ELV电路或基本绝缘的导电零部件与未接地的可触及导电零部件之间的附加绝缘，其工作电压等于基本绝缘上最严酷的工作电压。最严酷的工作电压可能是由于一次电路或二次电路产生的，并依此规定绝缘。7 C; U- `; J7 Y$ v8 ~