C4-80 Porcelain Support Insulator II-M УХЛ1 – High-Voltage 10kV Switchgear & Disconnector Insulation Solution for Russian & CIS Markets
The C4-80 Porcelain Support Rod Insulator II-M УХЛ1b is a robust and dependable solution for mechanical support and electrical insulation of live conductors, busbars, disconnect switches, and switchgear equipment in AC power systems up to 10kV. Manufactured from high-strength electrical porcelain, the C4-80 II insulator is designed to meet GOST 9984-85 Ceramic support insulators for voltages above 1000 V. General specifications, with insulating parts manufactured in compliance with GOST 20419-83 Electrical ceramic materials. General specifications. This ensures seamless integration into power networks and electrical apparatus requiring 10kV insulation solutions.
The C4-80 II-M УХЛ1 features a ceramic electrical insulating body of subgroup 130 (or group 120), providing excellent mechanical strength, weather resistance, and long-term durability in outdoor environments. The УХЛ1 climatic modification indicates suitability for operation outdoors in temperate and cold climates.
C4-80 Porcelain Support Insulator II-M УХЛ1b Technical Specifications
| Parameter | Value |
| Rated Voltage | 10 kV |
| Minimum Bending Failing Load | 4 kN |
| Lightning Impulse Withstand Voltage | 80 kV |
| Creepage Distance, not less than | 300 mm |
| Construction Height (H) | 215 mm |
| Outer Diameter of Insulating Part (ØD) | 125 mm |
| Top Mounting Dimension | 36 mm |
| Bottom Mounting Dimension | 70 mm |
| Weight | 2.7 kg (±10%) |
| Climatic Modification | УХЛ1 (temperate and cold climate, outdoor installation) |
| Frequency | Up to 100 Hz |
| Applicable Standards | GOST 9984-85, GOST 20419-83 |
C4-80 Porcelain Support Insulator II-M УХЛ1b Key Features
Superior Electrical Performance – The C4-80 II insulator delivers a lightning impulse withstand voltage of 80 kV and a creepage distance of 300 mm, guaranteeing safe and reliable operation of 10kV equipment even under polluted and wet conditions.
High Mechanical Strength – With a minimum bending failing load of 4 kN, the insulator reliably withstands mechanical stresses in switchgear, disconnectors, and busbar support applications.
Excellent Anti-Pollution Flashover Performance – The creepage distance of 300 mm effectively increases leakage distance, reduces the risk of pollution flashover, and is suitable for various contamination levels.
Durable Ceramic Construction – Manufactured from high-strength electrical ceramic material of subgroup 130 (or group 120) in compliance with GOST 20419-83, providing excellent mechanical strength, weather resistance, and long-term durability.
Climatic Modification УХЛ1 – Designed for operation outdoors in temperate and cold climates (УХЛ) with category 1 placement, allowing exposure to all atmospheric factors.
Simple Structure, Easy Installation – The support rod insulator features a streamlined design for convenient installation in switchgear, disconnectors, and busbar systems, reducing installation time and maintenance costs.
Long Service Life – Engineered for long-term reliable operation with minimal maintenance requirements.
C4-80 Porcelain Support Insulator II-M УХЛ1b Application Scenarios
The C4-80 II-M УХЛ1 high-voltage support rod insulator is ideal for:
- Mechanical support and electrical insulation of live conductors, busbars, disconnect switches, and switchgear equipment in AC power systems up to 10kV
- High-voltage disconnectors RLND and circuit breakers in distribution equipment
- Switchgear (RU) and busbar systems of power stations and substations
- Indoor and outdoor installations with exposure to all atmospheric factors
- Power distribution networks in temperate and cold climate regions
C4-80 Porcelain Support Rod Insulator II-M УХЛ1b Standards Compliance
| Standard | Description |
| GOST 9984-85 | Ceramic support insulators for voltages above 1000 V. General specifications |
| GOST 20419-83 | Electrical ceramic materials. General specifications (insulating part – electrical ceramic material of subgroup 130/group 120) |
| GOST 15150-69 | Climatic modifications and placement categories (УХЛ1 – temperate and cold climate, outdoor installation) |
| GOST 9920-89 | Pollution degree classification (II – contamination degree) |
Model Designation Code Interpretation (С4-80 II-М УХЛ1)
| Symbol | Meaning |
| С | Support rod insulator (стержневой) |
| 4 | Minimum mechanical bending failing load, kN |
| 80 | Lightning impulse test voltage (full impulse), kV |
| II | Pollution degree class per GOST 9920-89 |
| М | Modernized design (модернизированное конструктивное исполнение) |
| УХЛ1 | Climatic modification: УХЛ – temperate and cold climate; 1 – outdoor installation |
Why Choose C4-80 Porcelain Support Insulator II-M УХЛ1b for Your Power Grid?
- Full GOST compliance – meets GOST 9984-85, GOST 20419-83, and GOST 15150-69, ensuring smooth acceptance by grid operators and regulatory bodies in Russian and CIS markets
- Enhanced impulse performance – with 80kV lightning impulse withstand voltage, providing superior protection against surge events
- Proven reliability – engineered with high mechanical strength (4kN bending failing load) and robust electrical performance
- Pollution-resistant design – 300mm creepage distance ensures reliable operation in contaminated environments
- Weather-resistant – УХЛ1 climatic modification allows operation outdoors in temperate and cold climates with exposure to all atmospheric factors
- Cost-effective – high performance at competitive pricing, reducing total project costs
- Robust design – engineered to withstand harsh climatic conditions, from extreme cold to high humidity
About the C4-80 Porcelain Support Insulator II-M УХЛ1b Manufacturer
Bonle (Fujian) Insulator Co., Ltd., established in 2006, is located in Baizhong Industrial Zone, Minqing County, Fujian Province, China. The company specializes in the production of high and low voltage electrical porcelain products, including disc suspension insulators, anti-pollution disc suspension insulators, pin insulators, post insulators, porcelain cross-arm insulators, and over a hundred other products across dozens of series. All products undergo rigorous electrical and mechanical testing before shipment, ensuring the highest quality standards.
Model: C4-80 II-M УХЛ1 | Standards: GOST 9984-85, GOST 20419-83 | Rated Voltage: 10 kV | Manufacturer: Bonle (Fujian) Insulator Co., Ltd.
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For technical inquiries, bulk orders, or customized solutions, please contact our sales team via the links above.
C4-80 Porcelain Support Insulator II-M УХЛ1b References & Authoritative Resources
For certification, standard compliance, and procurement specifications, refer to:
- GOST 9984-85 – Ceramic support insulators for voltages above 1000 V. General specifications
- GOST 20419-83 – Electrical ceramic materials. General specifications
- GOST 15150-69 – Climatic modifications and placement categories
- Full Range of Insulators – explore our complete product portfolio for transmission and distribution lines
- Insulator Assembly Guide – installation best practices, string design, and torque specifications
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