标题: UL1278 电暖器过压测试 [打印本页] 作者: aha0827 时间: 2011-8-18 17:08 标题: UL1278 电暖器过压测试 UL1278标准中对过压测试规定如下：' F- x7 R v- T" t* |
41.2.1 The heater it is to be operated at a voltage in accordance with 39.1.12 until constant temperatures' A% ~' Q- Y- a2 n: s
are attained, following which it is to be operated for 2 hours at a 12 percent higher voltage.& h# Y( E& q5 q% M! g* ~) Y
期中“12 percent higher voltage”实际测试时，是不是输入额定电压的112%呀？作者: keven2012 时间: 2011-8-18 19:49
按39.1.12运行加热器直到达到恒定温度，然后以该电压的112%的电压运行2个小时。