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Zhongshan tuohao electric appliance co. LTD| Mechanical and electrical life requirements for electromagnetic current relays | ||||
| Publisher:admin | Add time：2018/11/3 | Viewed：187 | ||
| 1, mechanical life should not be less than 5000 times. < br / > 2. Electrical life: when rated load is added, it shall be no less than 1000 times. < br / > 3. In the mechanical life test, apply 2 times the setting power to the relay to make it operate, and 0.7 times the setting power to make it return, with no load on the contact (but the signal load less than 5W should be allowed). < br / > 4, the reliability of the life test: in the process of mechanical and electrical life test, the moving system of the relay shall be reliable action and return every time, every time contact shall be reliable to connect and disconnect (noises generating stable arc and contact contact sticking phenomenon), namely the relay in mechanical and electrical life test, shall ensure that the reliability of the work. < br / > 5. No harmful thermal accumulation or ion accumulation on the contact should be considered for the speed of electrical life test, so generally it should be conducted at least 1 time /s. < br / > 6. After the life test, the mechanical performance of the relay shall be good. The allowable value added of the error shall be specified by the technical conditions of the product | ||||
