测试手指能碰到次级的安全端子,符合60950要求吗
我有一个电源,次级输出端子通过了能量危险测试,但是能用测试手指碰到里面的端子的正负两级算不算合格,标准原话如下
a) A risk of injury due to an energy hazard exists if it is likely that two or more bare
parts (one of which may be earthed) between which a HAZARDOUS ENERGY LEVEL exists,
will be bridged by a metallic object.
b) The likelihood of bridging the parts under consideration is determined by means of
the test finger, Figure 2A (see 2.1.1.1), in a straight position. It shall not be possible to
bridge the parts with this test finger, applied without appreciable force.
c) The existence of a HAZARDOUS ENERGY LEVEL is determined as follows:
1) with the equipment operating under normal operating conditions, a variable
resistive load is connected to the parts under consideration and adjusted to
obtain a level of 240 VA. Further adjustment is made, if necessary, to
maintain 240 VA for a period of 60 s. If the voltage is 2 V or more, the output
power is at a HAZARDOUS ENERGY LEVEL, unless an overcurrent protective device
opens during the above test, or for any other reason the power cannot be
maintained at 240 VA for 60 s;
2) the stored energy in a capacitor is at a HAZARDOUS ENERGY LEVEL if the
voltage, U, is 2 V or more, and the stored energy, E, calculated from the
following equation, exceeds 20 J: 安全! 可以的 只是碰到安全端子是没事的，假如有碰到危险元件的话，那应该把危险元件包起来 標準中的2V如何理解？
页:
[1]
