Room Temperature Vulcanized (RTV) silicone rubber is widely used on the surface of insulator of power transmission and transformation equipment because of its excellent hydrophobicity. With the increase of operating life, RTV coating is subject to the influence of high temperature, high humidity and complex outdoor environmental factors, which tends to fall off, seriously affecting the working state of the insulator. In this paper, based on the realization of insulator identification, the defect in RTV coating is identified, and the damage area percentage of RTV coating in the insulator shed is calculated. Experiments show that this method can effectively characterize the severity of defects in RTV coating, which provides a technical basis for the online detection and evaluation of RTV coating status.

中文翻译：

---

基于可见光谱图像的绝缘子RTV硅橡胶涂层缺陷检测与表征

室温硫化（RTV）硅橡胶因其优异的疏水性，被广泛应用于输变电设备绝缘子表面。随着使用寿命的增加，RTV涂层受高温、高湿和复杂的室外环境因素的影响，容易脱落，严重影响绝缘子的工作状态。本文在实现绝缘子识别的基础上，对RTV涂层缺陷进行识别，并计算出绝缘子棚内RTV涂层的损伤面积百分比。实验表明，该方法可以有效表征RTV涂层缺陷的严重程度，为RTV涂层状态的在线检测和评价提供了技术依据。