ШФ-35Г Pin-Type Porcelain Insulator – High-Voltage 35kV Overhead Line Insulation Solution for Russian & CIS Markets
The ШФ-35Г pin-type porcelain insulator is a robust and dependable solution for insulation and conductor support in 35kV overhead transmission and distribution lines. Manufactured from high-strength electrical porcelain, the ШФ-35Г insulator is designed to meet GOST 1232-93 Porcelain and Glass Pin-Type Insulators for Voltage from 1 to 35 kV. General Specifications, with insulating parts manufactured in compliance with GOST 20419-83 Electrical Ceramic Materials. General Specifications (material subgroup 110). It also complies with TU 3493-133-00111120-96 technical specifications. This ensures seamless integration into Russian power networks and other CIS countries.
The ШФ-35Г features a brown glaze finish, providing excellent weather resistance and long-term durability in outdoor environments. The insulator is designed for operation in temperate and cold climates (У and ХЛ categories per GOST 15150-69) with ambient temperatures ranging from -60°C to +50°C.
ШФ-35Г Pin-Type Porcelain Insulator Technical Specifications
| Parameter | Value |
| Rated System Voltage | 35 kV |
| Creepage Distance, not less than | 700 mm |
| Power Frequency Withstand Voltage (Dry) | 100 kV |
| Power Frequency Withstand Voltage (Wet) | 85 kV |
| Lightning Impulse Withstand Voltage | 195 kV |
| Breakdown Voltage in Insulating Medium | 200 kV |
| Mechanical Bending Failing Load, not less than | 15.6 kN |
| Main Dimensions (Diameter × Height) | Ø263 mm × 285 mm |
| Mounting Pin (Hook) Diameter | Ø22 mm |
| Weight | 12.7 kg |
| Ambient Temperature Range | -60°C to +50°C |
| Frequency | Up to 100 Hz |
| Glaze Color | Brown |
| Applicable Standards | GOST 1232-93, GOST 20419-83, TU 3493-133-00111120-96 |
ШФ-35Г Pin-Type Porcelain Insulator Key Features
Superior Electrical Performance – The ШФ-35Г insulator delivers a dry power frequency withstand voltage of 100 kV, wet power frequency withstand voltage of 85 kV, lightning impulse withstand voltage of 195 kV, and breakdown voltage of 200 kV, guaranteeing safe and reliable operation of 35kV lines even under rain, fog, and lightning conditions.
High Mechanical Strength – With a minimum bending failing load of 15.6kN, the insulator reliably withstands conductor tension, wind loads, and ice accretion, ensuring long‑term stability in overhead line installations.
Excellent Anti‑Pollution Flashover Performance – The creepage distance of 700 mm effectively increases leakage distance, reduces the risk of pollution flashover, and is suitable for atmospheric pollution types I and II per GOST 9920-89. Applicable in areas with I, II, III degrees of atmospheric pollution with thunderstorm duration less than 40 hours.
Low Radio Interference – With a maximum RIV of 200 μV at 1000 kHz (test voltage 44 kV RMS to ground), the ШФ-35Г ensures minimal electromagnetic interference, making it ideal for installations near communication lines and sensitive electronic equipment.
Simple Structure, Easy Installation – The pin‑type insulator features a one-piece porcelain body. It is mounted on standard pins or hooks KV-22 using sealing polyethylene caps of types K, KP. The conductor is secured in the groove or on the neck of the insulator using wire binding VSh-1 or spiral binding of the PVS series.
Brown Glaze Finish – The insulator features a durable brown glaze that provides excellent weather resistance, UV protection, and self-cleaning properties, ensuring long-term performance in harsh outdoor environments.
Modernized Design – The letter “Г” in the designation indicates the modernization index. Earlier modifications are now obsolete and no longer produced. The ШФ-35Г represents the current standard with improved technical characteristics.
Fail-Safe Design – In the event of a breakdown, the insulator does not shatter and the conductor does not break.
ШФ-35Г Pin-Type Porcelain Insulator Application Scenarios
The ШФ-35Г high‑voltage pin‑type insulator is ideal for:
- Insulation and conductor support in 35kV overhead distribution and transmission lines
- Outdoor installations with ambient temperatures ranging from -60°C to +50°C
- AC overhead power lines with frequencies not exceeding 100 Hz
- Switchgear (RU) of power plants and substations
- Railway transport lines
- Areas with I, II, III degrees of atmospheric pollution (per standard project 3.407-143)
- Installation on wooden, reinforced concrete, and metal poles
- Power transmission and distribution networks in normal, polluted, and high‑altitude areas
ШФ-35Г Pin-Type Porcelain Insulator Standards Compliance
| Standard | Description |
| GOST 1232-93 | Porcelain and glass pin‑type insulators for voltage from 1 to 35 kV. General specifications |
| GOST 20419-83 | Electrical ceramic materials. General specifications (insulating part – electrical ceramic material subgroup 110) |
| GOST 15150-69 | Climatic modifications and placement categories (У and ХЛ – temperate and cold climate, outdoor installation) |
| GOST 9920-89 | Pollution degree classification (types I and II) |
| GOST 6490-93 | Porcelain line pin insulators for rated voltage 6-35 kV. General specifications |
| TU 3493-133-00111120-96 | Technical specifications for ШФ-35Г insulators |
Model Designation Code Interpretation (ШФ-35Г)
| Symbol | Meaning |
| Ш | Pin-type insulator (штыревой) |
| Ф | Material: electrical porcelain (фарфор) |
| 35 | Voltage class (rated voltage, kV) |
| Г | Design modification, modernization index |
Why Choose ШФ-35Г Pin-Type Porcelain Insulator for Your Power Grid?
- Full GOST and TU compliance – meets GOST 1232-93, GOST 20419-83, and TU 3493-133-00111120-96, ensuring smooth acceptance by grid operators and regulatory bodies in Russian and CIS markets
- Enhanced impulse performance – with 195kV lightning impulse withstand voltage, providing superior protection against surge events
- Low radio interference – maximum RIV of 200 μV ensures minimal electromagnetic disturbance
- Proven reliability – engineered with high mechanical strength (15.6kN bending failing load) and robust electrical performance
- Pollution-resistant design – 700mm creepage distance ensures reliable operation in contaminated environments
- Weather-resistant – operates in temperatures from -60°C to +50°C 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
- Fail-safe – does not shatter upon breakdown; conductor does not break
About the ШФ-35Г Pin-Type Porcelain Insulator 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: ШФ-35Г | Standards: GOST 1232-93, GOST 20419-83, TU 3493-133-00111120-96 | Rated Voltage: 35 kV | Manufacturer: Bonle (Fujian) Insulator Co., Ltd.
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- Product Catalog – browse our full range of insulators
- Technical Datasheet – download detailed specifications and drawings
- Request a Quote – get pricing and availability for your project
- Certifications & Compliance – view our quality and testing certificates
For technical inquiries, bulk orders, or customized solutions, please contact our sales team via the links above.
ШФ-35Г Pin-Type Porcelain Insulator References & Authoritative Resources
For certification, standard compliance, and procurement specifications, refer to:
- GOST 1232-93 – Porcelain and glass pin-type insulators for voltage from 1 to 35 kV. General specifications
- GOST 20419-83 – Electrical ceramic materials. General specifications
- GOST 15150-69 – Climatic modifications and placement categories
- GOST 9920-89 – Pollution degree classification
- GOST 6490-93 – Porcelain line pin insulators for rated voltage 6-35 kV. General specifications
- TU 3493-133-00111120-96 – Technical specifications for ШФ-35Г insulators
- 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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