Electric Powertek supplies premium SHF20 UO porcelain pin insulators for 10kV and 20kV overhead distribution lines, pole line systems, and electrical network projects. Also widely known as the SHF20 GS porcelain insulator, ShF-20UO pin insulator, or pin ceramic insulator, this Porcelain Insulator is engineered to provide reliable conductor support and robust electrical insulation in medium-voltage power distribution applications. This pin type porcelain insulator is ideally suited for utility contractors, electrical distributors, EPC projects, power line maintenance teams, and bulk replacement orders.
Featuring a 13kN minimum mechanical failure load, a 325mm leakage path, and stable 50Hz withstand voltage performance, the SHF20 UO insulator stands as a highly practical choice for overhead line construction and network maintenance projects. Electric Powertek supports large-quantity supply for global distributors and project buyers. If you are sourcing the SHF20 UO, SHF20 GS, ShF-20UO, or equivalent porcelain pin insulators, our dedicated team can help confirm precise technical specifications, heavy-duty packing, and delivery requirements for your bulk orders.

| Item | Specification |
| Product Name | SHF20 UO Porcelain Pin Insulator |
| Alternative Names | SHF20 GS Porcelain Insulator / ShF-20UO Pin Insulator |
| Product Type | Pin Type Porcelain Insulator |
| Applicable Voltage | 10kV / 20kV |
| Permissible Pollution Level (PUE) | 10kV / 20kV - 2 / 1 |
| Minimum Mechanical Failure Load | 13kN |
| Leakage Path Length | 325mm |
| Withstand Voltage (50Hz, Dry) | 85kV |
| Withstand Voltage (50Hz, In Rain) | 45kV |
| Breakdown Voltage in Insulating Medium | 160kV |
| Weight | 3400g |
| Material | High-Strength Electrical Porcelain |
| Application | Overhead power lines, distribution networks, pole line systems |
• Reliable high-strength electrical porcelain body optimized for harsh outdoor power line use
• 13kN minimum mechanical failure load ensures dependable overhead conductor support
• Outstanding 85kV dry power frequency withstand voltage capability
• 45kV wet rain withstand voltage for rigorous outdoor service conditions
• Perfectly suited for direct SHF20 UO / SHF20 GS replacement and bulk procurement
• Full support for large-volume wholesale supply and export-ready protective packaging
The SHF20 UO porcelain pin insulator is primarily used to insulate and securely fasten conductors on overhead power lines.
For power line construction, the insulator must withstand electrical stress, heavy conductor loads, continuous rain exposure, and ambient surface contamination.

• 10kV overhead distribution lines
• 20kV overhead distribution lines
• Medium-voltage utility pole line systems
• Power distribution network construction and grid extensions
• Utility maintenance, emergency repairs, and line replacement projects
• Substation and switchgear-related insulation layouts
• Rural electrification and regional infrastructure projects
• Electrical contractor stock programs and material supply chains
• Electrical wholesaler and distributor bulk supply inventories
For replacement projects: Buyers can provide old model numbers, technical drawings, site photos, or current line specifications. Electric Powertek will check whether the SHF20 UO or SHF20 GS is fully suitable for your specific application.
Porcelain pin insulators are widely utilized in overhead distribution networks because they provide timeless electrical insulation and mechanical support stability.
For medium-voltage power lines, pin type porcelain insulators are securely installed on pole crossarms using matching pins and steel spindles.
Compared with lower-grade or alternative insulation materials, electrical porcelain provides vastly superior long-term aging stability in outdoor power systems, especially where rain, dust, industrial pollution, and temperature changes occur constantly.
Electric Powertek focuses on supplying premium SHF20 UO porcelain pin insulators for bulk purchasing, large-scale project supply, and distributor stock replenishment. We understand that international buyers require consistent specifications, heavy-duty packaging, competitive bulk pricing, and reliable delivery schedules.
This product is highly optimized for:
• Power line hardware distributors and wholesalers
• Electrical material importers and trading houses
• Utility contractors and regional power companies
• EPC project suppliers and procurement managers
• Overhead line construction companies
• Grid maintenance and repair teams
• Regional replacement stock and backup programs
For large-volume orders, we seamlessly support full quotation planning, packaging configurations, and mixed shipments combined with other porcelain insulators or power line accessories.
Packing&Delivery



Because porcelain insulators are ceramic electrical products, strict quality control and specialized packing are paramount for safe international bulk shipment.
Our export packing configurations include:
• Heavy-duty reinforced carton packing
• Solid wooden case packing for maritime freight
• Secure pallet packing with shrink-wrapping
• Protective shock-absorbing separation layers between ceramic products
• Clear, customized outer shipping marks according to customer requests
• Export packing tailored for sea freight, rail freight, and inland transport handling
For distributors and project buyers, stable packing drastically reduces breakage risks and vastly improves warehouse handling efficiency upon arrival.




Partner customers

Cooperative Client
Our cooperative client are all over the world and our products are very popular all over the world. Many products are exported to Russia, USA, Australia, Canada, South Africa, Kenya, Tanzania, Zambia, Brazil and Argentina. Chile, Southeast Asian countries and other international markets. With first-class technical ability and perfect pre-sale and after-sales service guarantee system, we have established a good reputation between enterprises and users.
Looking for a reliable bulk supplier of SHF20 UO porcelain pin insulators for 10kV or 20kV overhead line projects? Send us your required quantity, target model, technical specifications, packing preferences, and destination port. Electric Powertek will help confirm the suitable pin type porcelain insulator and provide a competitive quotation for your order.
The recommended product name is SHF20 UO Porcelain Pin Insulator. It can also be accurately described as the SHF20 GS porcelain insulator, ShF-20UO pin insulator, or pin ceramic insulator.
This model is specifically designed for 10kV and 20kV medium-voltage overhead power line applications.
The minimum mechanical failure load for the SHF20 UO model is 13kN.
This insulator features a leakage path length (also known as leakage or creepage distance) of 325mm.
The 50Hz power frequency withstand voltage is 85kV in dry conditions and 45kV in wet rain conditions.
Yes. Electric Powertek supports bulk supply for global distributors, electrical contractors, utility projects, and replacement stock programs.
Yes. Simply send us your old model number, field photos, technical drawings, or datasheet specifications. We will confirm whether the SHF20 UO, SHF20 GS, or another porcelain pin insulator is the ideal drop-in replacement.
Yes. It is explicitly engineered for overhead distribution line and outdoor power deployment where maximum porcelain insulation, UV stability, and wet rain withstand performance are required.