影视灯灯座 220-240V， 250W，50HZ$ r2 {8 o4 j$ [, f; x5 C
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标准依据：EN 60838-1 10.4 Contacts and all other current-carrying parts shall be so constructed as to prevent excessive temperature rise. The holder contacts are bridged by means of a tes**p, having nominal dimensions, inserted9 m, p( X8 J. J! q4 u; j* z( _
in the holder, the terminals of which are fitted with conductors of the maximum cross-sectional area for which the holder is intended. The lampholder is loaded for 1 h with 1,25 times its rated current.The temperature rise of the contacts shall not exceed 45 K. This temperature is determined with the aid of melting particles or by thermocouples, not by means of thermometers.. f7 h/ ~+ y9 L
5 C5 z7 ?% n# i6 Y& @. V& B& P8 T灯座与灯头接触点周围塑料材质粘点,加载1H，1.25倍的额定电流，温升有71.5度,超过标准规定的45K.
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# t; n# u3 F$ p7 H2 Y请问各位：标准中的contacts 该怎样理解呢，温升粘点具体位置？1 Q! x- l5 F$ V ?: {
. L& C6 H7 i+ @6 N, s还有一个问题：
4 X \' w) i- @+ f- k9 L S如何整改？
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个人认为，按照标准，使用一般灯泡的灯座都过不了，除非使用冷光源！ |
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发表于 2008-11-19 10:15
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