Products
AC disc type suspension porcelain insulator
AC disc type suspension porcelain insulator-(disc cap-nail type) is the main product for overhead power transmission. It has three shed profiles: ordinary, anti-fog, and anti-fouling. It is type tested according to IEC 60305 / IEC 60383 and undergoes 100% routine electromechanical testing. Strings can be configured from 33 kV to 1000 kV ACs. Optional zinc ring for marine and industrial environments.

Disc suspension insulators for AC transmission lines.
- 70-530 kN Electromechanical load level
- Standard, anti-fog (BP), anti-fouling shed profile
- Optional zinc ring for corrosion corridor
- Complies with IEC 60305 / 60383 / 60797
Gallery
AC disc type suspension porcelain insulator — production photos

U300BP-195T · 300 kN UHV

U70B-146 · 70 kN standard disc

U70BP-146D · 70 kN fog disc

U210BP-146D · 210 kN anti-pollution

U40C · 40 kN distribution disc

U70B-146 · assembled string view
Models
Available models
| Code | Voltage class | Mechanical load | Creepage | Standard |
|---|---|---|---|---|
| U70B-146 | — | 70 kN | 320 mm | IEC 60305 |
| U70BP-146D | — | 70 kN | 445 mm | IEC 60305 |
| U120B-146 | — | 120 kN | 320 mm | IEC 60305 |
| U160B-170 | — | 160 kN | 380 mm | IEC 60305 |
| U210B-170 | — | 210 kN | 380 mm | IEC 60305 |
| U300BP-195T | — | 300 kN | 545 mm | IEC 60305 |
| U420B-205 | — | 420 kN | 450 mm | IEC 60305 |
| U530B-240 | — | 530 kN | 545 mm | IEC 60305 |
FAQ
Frequently asked questions
Which standards do AC disc type suspension porcelain insulator comply with?
All AC disc type suspension porcelain insulator from InsulatorX are type-tested to IEC 60305. Type-test reports are issued by independent laboratories including CEPRI and KEMA, and buyer factory audits or witness testing are welcome.
What ratings are available for AC disc type suspension porcelain insulator?
AC disc type suspension porcelain insulator are supplied across 70–530 kN. Send us your line voltage, span tension and creepage requirement and our engineers will size the right model with margin.
Which AC disc type suspension porcelain insulator models can I order?
Catalogue models include U70B-146, U70BP-146D, U120B-146, U160B-170, U210B-170, U300BP-195T, U420B-205, U530B-240. Custom dimensions, shed profiles, creepage extension and connection markings are available on request.
Can AC disc type suspension porcelain insulator be supplied for coastal or heavy-pollution lines?
Yes. We raise creepage distance and offer fog / anti-pollution profiles or hydrophobic silicone housings, sized to your site pollution class — typically class III to IV near the coast.
How do I request a quotation and what is the lead time for AC disc type suspension porcelain insulator?
Email your specifications — voltage, mechanical load, creepage, environment, quantity and INCOTERM — to support@insulatorx.com. We reply within one business day; lead time is 4 to 6 weeks for standard models and 8 to 14 weeks for custom designs, shipped EXW / FOB / CIF / DDP.

