LXHY5-120、U120BP-146-2、U120BP-3防污型盘形悬式玻璃绝缘子简称绝缘子。是指为满足带电作业的需要而制造的绝缘产品。
LXHY5-120、U120BP-146-2、U120BP-3防污型盘形悬式玻璃绝缘子由铁帽、耐污玻璃件和钢脚组成，并用水泥胶合剂胶合为一体。此产品全部采用圆柱头型结构，其特点是头部尺寸小。重量轻，强度好和爬电距离大。可节约金属材料和降低线路造价。为满足带电作业的需要，在帽沿上采用国内传统的结构形状。
防污型玻璃绝缘子主要技术参数表：
| 产品型号 | 公称直径 D mm | 结构高度 H mm | 公称爬电距离 L mm | 联接型式 | 机械破坏负荷 kN | 逐个拉伸负荷试验 kN | 工频湿耐受电压 kV | 雷电冲击耐受电压 kV | 冲击击穿电压 P.U | 工频击穿电压 kV | 无线电干扰 µV | 可见电晕脚 /帽 kV | 工频电弧试验 | 单片净重 kg | ||
| 通用代号 | LXHY系列 | FC系列 | ||||||||||||||
| U70BP/146H | LXHY4-70 | FC7P/146 | 255 | 146 | 400 | 16 | 70 | 35 | 45 | 110 | 2.8 | 130 | 50 | 18/22 | 20kA | 5.2 |
| U70BLP U70BP/146H | LXHY5-70 | FC70P/146 | 280 | 146 | 450 | 16 | 70 | 35 | 50 | 125 | 2.8 | 130 | 50 | 18/22 | 20kA | 5.8 |
| U70BP/146H | LXHY6-70 | FC70PL/146 | 320 | 146 | 550 | 16 | 70 | 35 | 55 | 140 | 2.8 | 130 | 50 | 18/22 | 20kA | 6.1 |
| U100BP/146H | LXHY-100 | FC10P/146 | 255 | 146 | 400 | 16 | 100 | 50 | 45 | 110 | 2.8 | 130 | 50 | 18/22 | 20kA | 5.2 |
| U100BLP U100BP/146H | LXHY4-100 | FC100P/146 | 280 | 146 | 450 | 16 | 100 | 50 | 50 | 125 | 2.8 | 130 | 50 | 18/22 | 20kA | 5.9 |
| U100BP/146H | LXHY5-100 | FC100PL/146 | 320 | 146 | 550 | 16 | 100 | 50 | 55 | 140 | 2.8 | 130 | 50 | 18/22 | 20kA | 8.2 |
| U120BP/146H | LXHY-120 | FC12P/146 | 255 | 146 | 400 | 16 | 120 | 60 | 45 | 110 | 2.8 | 130 | 50 | 18/22 | 20kA | 5.3 |
| U120BP U120BP/146H | LXHY4-120 | FC120P/146 | 280 | 146 | 450 | 16 | 120 | 60 | 50 | 125 | 2.8 | 130 | 50 | 18/22 | 20kA | 6.0 |
| U120BP/146H | LXHY5-120 | FC120PL/146 | 320 | 146 | 550 | 16 | 120 | 60 | 55 | 140 | 2.8 | 130 | 50 | 18/22 | 20kA | 8.3 |
| U160BP U160BP/155H | LXHY3-160 | FC16P/155 | 280 | 155 | 450 | 20 | 160 | 80 | 50 | 125 | 2.8 | 130 | 50 | 18/22 | 20kA | 7.0 |
| U160BP/170H | LXHY4-160 | FC16P/170 | 280 | 170 | 450 | 20 | 160 | 80 | 50 | 125 | 2.8 | 130 | 50 | 18/22 | 20kA | 7.1 |
| U160BSP U160BP/146H | FC160P/146 | 320 | 146 | 550 | 20 | 160 | 80 | 50 | 125 | 2.8 | 130 | 50 | 18/22 | 20kA | 8.8 | |
| U160BLP U160BP/170H | LXHY5-160 | FC160P/170 | 320 | 170 | 550 | 20 | 160 | 80 | 55 | 140 | 2.8 | 130 | 50 | 18/22 | 20kA | 9.1 |
| U160BP U160BP/155H | LXHY6-160 | FC160P/155 | 320 | 155 | 550 | 20 | 160 | 80 | 55 | 140 | 2.8 | 130 | 50 | 18/22 | 20kA | 9.0 |
| U210BP U210BP/170H | LXHY3-210 | FC210P/170 | 320 | 170 | 550 | 20 | 210 | 105 | 55 | 140 | 2.8 | 130 | 50 | 18/22 | 20kA | 9.6 |
| U240BP/170H | LXHY3-240 | FC240P/170 | 320 | 170 | 550 | 24 | 240 | 120 | 55 | 140 | 2.8 | 130 | 50 | 18/22 | 20kA | 9.9 |
| U300BP U300BP/195H | LXHY4-300 | FC300P/195 | 320 | 195 | 550 | 24 | 300 | 150 | 55 | 140 | 2.8 | 130 | 50 | 18/22 | 20kA | 11.3 |
