Silverstone porcelain insulators cover the full line-up for overhead networks — disc suspension strings, pin and line post units for distribution poles, station posts for switchyards, plus strain, spool and shackle types. Quality-assured supply from qualified manufacturers to ANSI and IEC classes, in normal, fog and anti-pollution profiles, delivered with routine test reports.
Key Specifications
Product class
Porcelain insulator — suspension disc · pin · line post · station post · strain · spool
ANSI C29 series · IEC 60383 (U-classes) · BS / AS types
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.
What information do you need to quote porcelain insulators?
Insulator type (suspension disc, pin, line post, station post, strain or spool), standard and class designation (e.g. ANSI 52-3 or IEC U70BL), mechanical rating, glaze colour, quantity and destination port. With these, we return a priced offer with lead time within 24 hours on working days.
Which standards do your porcelain insulators follow?
Disc suspension insulators are quoted to ANSI C29 classes 52-1 to 52-10 and IEC 60383 designations U40B to U160BP. Pin, line post and station post types follow ANSI C29.5 / C29.6 / C29.7, with BS and AS standard designs also available.
Do you support OEM or customized supply?
Yes. OEM branding is a core part of our supply service — private-label markings, glaze colours (brown, grey or white), packaging and documentation packages are available for bidding agents and EPC contractors.
Which test documents ship with the insulators?
Each lot ships with routine test reports — visual and dimensional inspection, routine tensile load and power-frequency flashover/puncture sampling per the applicable standard. Type test certificates for specific designs are available on request.
