| 1. | Line frequency and voltage tests for electronic measuring instruments
电源频率与电压试验 |
| 2. | Influences of power factor change on medical equipment
谈电源频率和相序的改变对医疗设备的影响 |
| 3. | Line frequency and voltage test
电源频率与电压试验 |
| 4. | Power frequency deviation
电源频率偏差 |
| 5. | Insulating liquids - determination of the breakdown voltage at power frequency - test method
绝缘液体.电源频率击穿电压的测定 |
| 6. | The method of environmental test for analytical instruments - line frequency and voltage test
分析仪器环境试验方法电源频率与电压试验 |
| 7. | Methods of test for electric strength of solid insulating materials - tests at power frequencies
固体绝缘材料介电强度试验方法.电源频率下的试验 |
| 8. | Electrical strength of insulating materials - test methods - part 1 : tests at power frequencies
绝缘材料的电强度.试验方法.第1部分:电源频率下的试验 |
| 9. | Specification for epoxy resin casting systems used for electrical insulating applications at power frequencies
电源频率的电气绝缘用环氧树脂浇铸系统规范 |
| 10. | Test method for alternating - current magnetic properties of materials at power frequencies using sheet - type test specimens
在电源频率下用薄钢板试样测试材料交流磁特性的方法 |
