对国际标准规定的水冷式和风冷式散热器试验台的试验结果进行了对比分析 ,认为散热器试验台加保温板将使散热器散热量略有下降 ,但散热量相差不超过 2 %;水冷试验台的测试结果略低于风冷试验台的测试结果 ,散热量相差最大为 3%。在实际工作中可忽略两种试验台测试结果的差别 The test results of water cooled and air - cooled radiator test bench stipulated by international standards are compared and analyzed. It is considered that the radiator test - bed plus thermal insulation board will reduce the heat radiation of the radiator slightly, but the difference of heat radiation shall not exceed 2%. The test results of the water-cooled test bed are slightly lower than the test results of the air-cooled test bench, the maximum difference of heat dissipation is 3%. In practice, the difference between the two test bench test results can be ignored