5.2.13 The ends of flexible stranded conductors may be tinned, but shall not have additional
solder applied, unless a means is provided of ensuring that clamped connections cannot work
loose owing to cold flow of the solder (see Figure 28).
NOTE This requirement is met when spring terminals are used. Securing the clamping screws is not an adequate
means of preventing the connection of soldered strands from working loose owing to cold flow of the solder.作者: 富贵天天 时间: 2012-1-21 01:14
导线端头上一点锡是可以的，但是不能太多，如果接线端子是螺钉固定的话，螺钉压在焊锡部分是不行的，因为考虑到焊锡会冷流动，影响接触性能；但是弹簧接线端子的导线允许上锡，因为弹簧可以补偿焊锡的冷流动。