Silverstone supplies toughened glass suspension insulators for overhead transmission and distribution lines — standard, anti-pollution (fog-type) and open-profile designs across the full IEC U-class range from U70B to U550B. Toughened glass sheds fail visibly, making string inspection fast from the ground; every batch is sourced from qualified manufacturers and delivered with routine test reports.
IEC designation system; export units to IEC standards or project specification
Sourcing base
Suzhou Industrial Park, Jiangsu, China
Typical configurations shown. Final ratings, dimensions and test reports are confirmed per project datasheet — include your specification with the inquiry. Download brochure (PDF) →
What information do you need to quote glass insulators?
IEC designation (e.g. U120B/146) or required mechanical failing load, creepage distance, socket coupling size, quantity and destination port. With these, we return a priced offer with lead time within 24 hours on working days.
Which standards do your glass insulators comply with?
The range follows IEC U-class designations (U70B to U550B, including anti-pollution BP and open-profile C types). Units for export are supplied to IEC standards or to the customer's project specification.
Do you support OEM branding on insulators?
Yes. OEM marking, custom packaging and documentation packages are available for bidding agents and EPC contractors as part of our supply service.
Are test reports available with each shipment?
Each batch ships with routine mechanical and electrical test reports. Type test certificates for specific designations are available on request.
