30.2.3 Appliances that are operated while unattended are tested as specified in 30.2.3.1 and
30.2.3.2. However, the tests are not applicable to
– parts supporting welded connections;
– parts supporting connections in low-power circuits described in 19.11.1;
– soldered connections on printed circuit boards;
– connections on small components that are mounted on printed circuit boards;
– parts within 3 mm of any of these connections.
NOTE Examples of small components are diodes, transistors, resistors, inductors, integrated circuits and capacitors not directly connected to the supply mains.
– parts supporting welded connections;
支撑焊接的连接 能不能给我一个实例？？ 让我更好的理解
– soldered connections on printed circuit boards;
是不是说塑胶壳碰到了PCB上的焊点，也不需要做灼热丝测试？？