Post Insulators
Solid core post insulators supporting live parts in switchgear and on line supports, in GOST and threaded patterns.
5 products
Every Post Insulators We Make
C4-80 II 10kV Porcelain Post Insulator GOST
- Minimum Mechanical Breaking Force 4 kN
- Creepage Distance 300 mm
- Torsion Strength 100 N.m
IO-10/4 UKhL3 and IOR-10/3.75 II UKhL2 Post Insulator
- Body Diameter 54 mm
- Overall Height 272 mm
- Minimum Puncture Voltage 75 kV
IO-10/4 UKhL3 Ceramic Post Insulator For Line Supports
- Diameter Body 54 mm
- Height 272 mm
- Minimum Puncture Voltage 75 kV
IPU-10/630-7.5 I UKhL1 Wall Bushing With Oval Flange
- Rated Current 630 A
- Minimum Mechanical Bending Failure Load 7.5 kN
- Rated Voltage 10 kV
J8-125 Post Ceramic Insulator 8kN Bending Strength
- BIL 125 kV
- Bending Strength 8 kN
- Maximum Shed And Outer Diameter 110 mm
Problems this range solves
What Buyers Come To Us With
- Threaded seats that a flange-mount post insulator will not fit
- Posts that flex under busbar short-circuit forces
- GOST material clauses that suppliers will quote around rather than meet
- Cement joints that loosen after a few switching seasons
Core advantages
What The Range Gives You
- GOST material clauses met, including GOST 20419-83 ceramic and GOST 1583-93 fittings
- Threaded M16 and M20 mounting on the J8-125 pattern
- Cantilever ratings from 4kN with 100N.m torsion strength
- Silicone sealed cement joints on the GOST post insulators
Who it is for
Suited To
- Switchgear and panel manufacturers
- Substation maintenance teams
- Utilities working from GOST parts lists
Application scenarios
Where It Is Used
- Busbar supports inside switchgear cubicles
- Disconnector and circuit breaker mountings
- 10kV line supports carrying conductors and cables
- Switchgear refurbishment on existing seats
Questions
Post Insulators Questions
Do you meet the GOST material clauses or just the dimensions?
The material clauses. The ceramic is group 120 electrotechnical material to GOST 20419-83, the fittings are AK12 aluminium alloy to GOST 1583-93 and the bonding cement is PTs-500 DON to GOST 10178-85.
What mounting arrangements are available?
Threaded M16 top and M20 bottom on the J8-125, and GOST flange and stud arrangements on the C4-80 II and IO series.
What torsion strength do they hold?
100N.m on the C4-80 II, with a 4kN minimum breaking force.
Can nodular iron fittings be supplied instead of aluminium?
Yes, both are available. Tell us which the drawing specifies.
Are the cement joints sealed?
Yes, with silicone sealant on the GOST post insulators.
Knowledge
Guides For This Range
Buying Guide
Low Voltage Post Insulators Principles Applications And Selection
A low voltage post insulator has to do two things at once: stop the current and carry the load. Getting the selection right means
Process GuideHow Electrical Porcelain Bushings And Insulators Are Made
A walk through the production sequence at an 80000 square metre electrical porcelain plant, from body forming to the routine test
Talk To An Engineer About Post Insulators
Send the drawing, the pollution class at the site, or a photograph of the part you are replacing. A reply comes back within 24 hours.