C4-80 II 10kV Porcelain Post Insulator GOST
C4-80 II GOST post insulator for 10 kV switchgear. 80 kV test voltage, 4 kN breaking force, 300 mm creepage, 100 N.m torsion, 2.75 kg, UKhL1 climatic execution.
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Product Overview
A GOST ceramic post insulator used to fix conductors and cables to line supports at 10 kV. The body is 54 mm in diameter and 272 mm tall with a minimum puncture voltage of 75 kV, strength class II and UKhL2 climatic class. It is supplied under both the IO-10/4 UKhL3 and IOR-10/3.75 II UKhL2 designations, which appear on different CIS drawing sets for the same mounting envelope.
Why Buyers Choose This Part
- Covers two GOST designations with one mounting envelope
- 75 kV minimum puncture voltage on a 10 kV rated body
- Slim 54 mm body fits crowded support brackets
- Quality ceramic that holds its insulation through freeze and thaw cycles
Where It Is Used
- 10 kV overhead line supports carrying conductors and cables
- Distribution networks built to CIS drawing standards
- Replacement on lines where the original designation is no longer stocked
- Line construction projects that mix IO and IOR part callouts
Who It Suits
- Overhead line contractors working to GOST drawings
- Utilities in Russia, Belarus, Kazakhstan and neighbouring markets
- Distributors consolidating CIS post insulator part numbers
What Goes Wrong Without The Right Part
- Two drawing designations that buyers otherwise have to source separately
- Post insulators that crack at the fixing after winter cycling
- Conductors that work loose on the support because the insulator seat is wrong
- Slow supply of GOST-pattern parts from local stock
How It Is Built
- 54 mm body diameter
- 272 mm overall height
- 75 kV minimum puncture voltage
- Strength class II
- UKhL2 climatic execution
- Quality electrotechnical ceramic body
Published Figures For This Product
Every value below comes from the manufacturer data for this item. Figures not listed are confirmed against the drawing before an order is placed.
| Body Diameter | 54 mm |
|---|---|
| Overall Height | 272 mm |
| Minimum Puncture Voltage | 75 kV |
| Diameter | 54 mm |
Materials
- Electrotechnical ceramic body
- Metal fixing hardware
Process
- Body forming
- Glazing
- Firing
- Hardware fitting
- Puncture voltage test
Testing
- Puncture voltage tested against the 75 kV minimum
- Dimensional check on the 54 mm by 272 mm envelope
- Glaze inspection before despatch
Certification
- ISO 9001 quality management system
Customisation Options
- Produced to customer drawings and samples
- Marking to the designation your drawing uses
- Packing arranged for your shipping route
How It Compares
| Pin type insulator | A post insulator is fixed rigidly to the support and carries cantilever load, while a pin type insulator seats on a spindle and is normally used where the conductor is tied on. |
|---|---|
| Composite post insulator | Ceramic keeps a stable surface over decades of weather exposure and does not depend on a polymer housing staying hydrophobic. |
Before You Order And After It Arrives
- Check which designation your drawing calls out before ordering
- Mount square to the support so the body is not loaded on one edge
- Tie the conductor into the seat, do not rely on friction
- Inspect the glaze after winter for frost damage at the fixing
IO-10/4 UKhL3 and IOR-10/3.75 II UKhL2 Post Insulator Questions
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- Creepage Distance 300 mm
- Torsion Strength 100 N.m
Related Cases Guides And Applications
Low Voltage Post Insulators Principles Applications And Selection
Overhead Line Contractors
Switchgear Manufacturers
Manufacturing To Your Drawing Or Sample
Selecting Creepage For The Pollution At Your Site
Quote For IO-10/4 UKhL3 and IOR-10/3.75 II UKhL2 Post Insulator
Send the quantity and any drawing you have. Enquiries are answered within 24 hours, and we produce to customer drawings and samples.
Product Photographs
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