|
| Approach to Draw the Aging Map of High Temperature Vulcanized Silicone Rubber for Composite Insulator |
| |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2023.03.015 |
| KeyWord:silicone rubber UV aging thermal aging aging model aging map severity classification |
| Author | Institution |
| LI Guang-mao |
Guangzhou Power Supply Bureau of Guangdong Power Grid Co., Ltd., Guangzhou , China |
| DU Gang |
Guangzhou Power Supply Bureau of Guangdong Power Grid Co., Ltd., Guangzhou , China |
| YANG Jie |
Guangzhou Power Supply Bureau of Guangdong Power Grid Co., Ltd., Guangzhou , China |
| WANG Yong |
Guangzhou Power Supply Bureau of Guangdong Power Grid Co., Ltd., Guangzhou , China |
| CHEN Lu |
Guangzhou Power Supply Bureau of Guangdong Power Grid Co., Ltd., Guangzhou , China |
| ZHOU Hong-ling |
Guangzhou Power Supply Bureau of Guangdong Power Grid Co., Ltd., Guangzhou , China |
| PANG Zhi-kai |
Guangzhou Power Supply Bureau of Guangdong Power Grid Co., Ltd., Guangzhou , China |
| FAN Wei-nan |
Guangzhou Power Supply Bureau of Guangdong Power Grid Co., Ltd., Guangzhou , China |
|
| Hits: |
| Download times: |
| Abstract: |
| The work aims to study the aging principle of high temperature vulcanized silicone rubber under different outdoor environmental conditions and the corresponding approach to draw the aging map. The macroscopic properties of silicone rubber before and after aging were measured by static contact angle and shore hardness method, and the microscopic morphology of the surface was studied by scanning electron microscope (SEM). The reciprocity law, Arrhenius equation and superposition law were adopted to build the two-factor aging model combining ultraviolet and temperature. According to the results of shore hardness after artificial and natural aging tests, the acceleration factors in different sites were compared, and the approach to draw the aging rate map was preliminarily established. With the increase of UV aging time and thermal aging time, the hydrophobicity of silicone rubber increased firstly and then decreased gradually and the shore hardness of silicone rubber increased by a power function. SEM results indicated the degradation of silicone rubber surface. The surface hardness characteristics could be used to characterize the aging state of materials well and draw aging map. The results of aging model were consistent with those of natural tests. The silicone rubber aging map can better predict the aging state of silicone rubber in different environments and help power grid companies to formulate operation and maintenance strategies and reduce costs. |
| Close |
|
|
|