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One of the plug socket pins was tight and as such has become slightly distorted. If the socket on the right of the below image makes a poor contact the terminal resistance at this point will be higher and may cause localised overheating
% x F; @3 V! a: ~1 \/ W' U 容纳插头插销的插座插套,其中一个比较紧,因此已有轻微变形。如果下图右面的插座插套产生不良的接触,则该点的端子电阻将变大,可能导致局部过热。
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" z/ ]5 r# r W' ]: P. n7 e' v• The internal cables have been routed such that they cannot move or become damaged during assembly. The terminals of these wires should however be hooked through the PCB rather than soldered directly to it. The wires cross sectional area should also be at least 0.4mm2, Z3 B6 q% b0 ~8 M( J, x$ A
内部导线已经做了排列,从而在装配时其不会位移或受到损伤。但这些导线的端子应钩焊在PCB上,而不是直接焊接在PCB上。内部导线的横截面积应至少为0.4mm2.
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• The plastic case is supporting live parts. It must therefore withstand the 125oC ball pressure test. Depending on the operating temperature of the product this temperature may be higher7 H9 Y6 w! w3 t& n/ M" U
塑料外壳支撑带电部件,因此它必须能经受125度球压试验;同时取决于产品的工作温度,球压试验温度可能会更高。.; r, g* b8 b0 Q! k' L
8 i N. M a' j% y• The case sections are held together with one screw located between the plug pins. As such the case can be opened at the top giving access to live parts. It is recommended that the case sections be sonically welded so that the case can also withstand the tumble barrel and impact tests
& c/ f5 _' V- S8 e& R8 g6 o: P" X3 ^ 外壳的两个部分通过一个螺钉固定在一起,而螺钉位于插头插销之间。因此外壳可以在顶部打开,从而触及带电部件。因此建议外壳的两个部分采用超声波焊接(猜测的),从而能经受滚筒跌落试验和冲击试验。
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• The screw is in the center of the socket and plug configuration. As such this may be an issue with creepage distances and clearances. If the screw is moved above the earth terminal this would mean that the shutter mechanism could also be activated by the earth pin rather than the live and neutral plug pins. Depending on the quality of the sonic weld the screw could be removed completely6 v, ]$ o$ G# P
位于插头和插座结构中心的螺钉,可能会导致爬电距离和电气间隙问题。如果螺钉在接地端子上活动,这将意味着插座的保护门可以被接地插销驱动,而不是插头的相和中性插销。取决于超声波焊接的质量,可以完全不使用螺钉。 |
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