| Class Type | Fig | Unit spacing (mm) | Disc diameter (mm) | Leakge distance (mm) | Restd E&M failing load (KN) | Rountime tension load (KN) | Impact failing load (mm) | Wet Poer Frequaency withstand Voltage KV | Lighting Impluse withstand Voltage KV | Radio Influence Voltage | Power-frequancy Puncture Voltage (KV) | |
| Test Voltage To Ground KV | Max Riv At 1Mhz V | |||||||||||
| U40B | 1 | 110 | 170 | 190 | 40 | 20 | 5 | 30 | 75 | 7.5 | 50 | 90 |
| U40BP | 1 | 110 | 210 | 295 | 40 | 20 | 5 | 35 | 90 | 10 | 50 | 90 |
| U70BS | 3 | 127 | 255 | 295 | 70 | 35 | 6 | 40 | 100 | 10 | 50 | 110 |
| U70BL | 3 | 146 | 255 | 295 | 70 | 35 | 6 | 40 | 100 | 10 | 50 | 110 |
| U70C | 2 | 146 | 255 | 295 | 70 | 35 | 6 | 40 | 100 | 10 | 50 | 110 |
| U70BLP | 3 | 146 | 280 | 440 | 70 | 35 | 6 | 42 | 110 | 10 | 50 | 120 |
| U70CP | 2 | 146 | 280 | 440 | 70 | 35 | 6 | 42 | 110 | 10 | 50 | 120 |
| U100BS | 3 | 127 | 255 | 295 | 100 | 50 | 7 | 40 | 100 | 10 | 50 | 110 |
| U100BL | 3 | 146 | 255 | 295 | 100 | 50 | 7 | 40 | 100 | 10 | 50 | 110 |
| U100C | 2 | 146 | 255 | 295 | 100 | 50 | 7 | 40 | 100 | 10 | 50 | 110 |
| U100BLP | 3 | 146 | 255 | 440 | 100 | 50 | 7 | 42 | 110 | 10 | 50 | 120 |
| U100CP | 2 | 146 | 255 | 440 | 100 | 50 | 7 | 42 | 110 | 10 | 50 | 120 |
| U120B | 3 | 146 | 280 | 295 | 120 | 60 | 7 | 40 | 100 | 10 | 50 | 110 |
| U120C | 2 | 146 | 280 | 295 | 120 | 60 | 7 | 40 | 100 | 10 | 50 | 110 |
| U120BP | 3 | 146 | 280 | 440 | 120 | 60 | 7 | 42 | 110 | 10 | 50 | 120 |
| U120CP | 2 | 146 | 280 | 440 | 120 | 60 | 7 | 42 | 110 | 10 | 50 | 120 |
| U160BS | 4 | 146 | 280 | 315 | 160 | 80 | 10 | 40 | 100 | 10 | 50 | 110 |
| U160BSP | 4 | 146 | 330 | 440 | 160 | 80 | 10 | 45 | 125 | 10 | 50 | 110 |
| U160BL | 4 | 146 | 280 | 340 | 160 | 80 | 10 | 42 | 105 | 10 | 50 | 110 |
| U160BLP | 4 | 146 | 330 | 525 | 160 | 80 | 10 | 45 | 130 | 10 | 50 | 110 |
| U210B | 4 | 170 | 330 | 370 | 210 | 105 | 10 | 42 | 110 | 10 | 50 | 120 |
| U210BP | 4 | 170 | 330 | 525 | 210 | 105 | 10 | 45 | 130 | 10 | 50 | 120 |
Here are some key details about these insulators:
1.Design: These insulators are designed to comply with IEC Class standards, ensuring the performance of both the electrical and mechanical functions.
2.Types: Porcelain insulator includes Suspension type, Pin type, Spool type, Strain/Guy type, Line Post type and Station Post type.
3.Standards: They meet IEC, ANSI, AS, BS, etc. standards.
4.Applications: They are usually connected and assembled into insulator string and used on different levels of line voltage.
