我场拥有金马-1065型联合收割机9台,但在近两年的实际作业中,先后已有3台收割机因电线短路而引起火灾,直接经济损失近万元。究其原因如下:(1)电器部分缺乏清理、保养,尘污沾积线栓,绝缘性能降低,造成局部短路而引起火灾。(2)机械轧伤导线造成直接短路而引起火灾。(3)鼠害咬破导线包皮而引起短路,造成火灾。(4)导线与油、水长期接触,加速老化,易造成短路而引起火灾。针对上述原因,采取以下防范措施:(1)勤检查、勤清理,特别是在 My field has Jinma -1065 Combine harvester 9, but in the past two years the actual operation, has three harvesters have a fire caused by a short circuit, the direct economic loss of nearly million. The reasons are as follows: (1) the lack of electrical parts of the cleaning, maintenance, dust stained plug, reduce insulation, causing a partial short circuit and cause a fire. (2) mechanical damage caused by direct short-circuit lead wire caused by fire. (3) rodent bite wire sheath and cause a short circuit, causing a fire. (4) Lead and oil, water, long-term exposure, accelerated aging, easy to cause a short circuit and cause a fire. For the above reasons, take the following precautions: (1) ground inspection, ground cleaning, especially in