38.道岔2DQJ接点烧坏的主要原因是什么？
["\u9053\u5c94 2DQJ \u63a5\u70b9\u70e7\u574f\u7684\u4e3b\u8981\u539f\u56e0\u6709\uff1a(1)\u9053\u5c94\u53d1\u751f\u7a7a\u8f6c\u65f6\uff0c\u8fc7\u591a\u5730\u6765\u56de\u6273\u52a8\u9053\u5c94\uff0c\u901a\u8fc72DQJ\u63a5\u70b9\u7684 \u9053\u5c94\u52a8\u4f5c\u7535\u6d41\u8f83\u5927\uff0c\u77ac\u95f4\u4ea7\u751f\u7535\u5f27\uff0c\u70e7\u574f\u63a5\u70b9\uff1b(2)2DQJ \u6709\u6781\u63a5\u70b9\u4e0a\u7684\u7184\u5f27\u5668\u88c5\u53cd\u3002"]