Silicone rubber snap type insulating sleeves are mainly used in overhead railway systems when crossing tunnels, bridges, and tropical rainforests., Used to improve its insulation performance, prevent the occurrence of short circuits, and effectively strengthen the insulation protection of exposed antenna lines. It is mainly used for line crossing insulation protection in overhead bare line 15 dry volts and 35 kv power systems It is mainly used to strengthen insulation and protect antenna exposed wires through forests, buildings, tunnels, rivers, and so on. It can also be applied to railway systems where the insulator portion of the antenna is exposed to improve its insulation performance.