P-10T Pin Type Insulator — 10kV Porcelain Pin Insulator | GB Standard Compliant
The P-10T Pin Type Insulator is a 10kV-class porcelain pin insulator designed and manufactured in compliance with Chinese GB standards for overhead distribution line insulation. It is part of the P-series pin insulator family (P-6T, P-10T, P-15T, P-20T, P-35T) widely used across Asia, Africa, and South America.
The insulator is constructed with a high-strength ceramic body and a hot-dip galvanized steel pin, with the ceramic and steel components cemented together using silicate cement adhesive.
The product is available with either brown or gray glaze finish and is suitable for 10kV nominal voltage distribution systems, offering reliable electrical insulation and mechanical support for conductors on cross-arms.
Explore related products: P-6T Pin Type Insulator (6kV) | P-15T Pin Type Insulator (15kV) | PQ Series Heavy Pollution Pin Insulators
P-10T Pin Type Insulator Technical Specifications
Dimensions
| Parameter | Value |
| Diameter (D) | 145 mm |
| Height (H) | 105 mm |
| Creepage Distance | 195 mm |
| Connection Type | M16 thread |
Mechanical Performance
| Parameter | Value |
| Cantilever Strength | 11 kN |
Electrical Performance
| Parameter | Value |
| Typical Application Voltage | 10 kV |
| Power Frequency Dry Withstand Voltage | 55 kV |
| Power Frequency Wet Withstand Voltage | 30 kV |
| Dry Lightning Impulse Withstand Voltage | 90 kV |
| Power Frequency Puncture Voltage | 95 kV |
Radio Influence Voltage (RIV) Data
| Parameter | Value |
| Test Voltage RMS to Ground | 10 kV |
| Maximum RIV at 1000 kHz | 50 μV |
Packing & Shipping
| Parameter | Value |
| Net Weight, Approximate | 1.8 kg |
| Standard Packing | Wooden case / pallet (export packaging) |
P-10T Pin Type Insulator Standards Compliance
The P-10T pin insulator conforms to the Chinese national standard GB/T 1001.1-2021 (Insulators for overhead lines with a nominal voltage above 1,000V — Part 1: Ceramic or glass insulator units for a.c. systems — Definitions, test methods and acceptance criteria).
The current active version of this standard is GB/T 1001.1-2021, which specifies the test methods and acceptance criteria for porcelain insulator units used on AC overhead power lines and traction lines with nominal voltages above 1,000V and frequencies not exceeding 100Hz.
For pin insulators specifically, GB/T 1000-2016 covers the dimensions and characteristics of high-voltage line pin-type porcelain insulators for nominal voltages up to 10kV. The P-10T is within this standard’s applicable voltage class.
The RIV (radio influence voltage) testing requirements are also addressed in IEC 60383-1:2023, Clause 14. For post insulator testing methodology applicable to pin-type insulators, IEC 60168:1994 covers indoor and outdoor post insulators of ceramic material for systems with nominal voltages greater than 1,000V.
Standards and External References
| Resource / Standard | Anchor Text | Target Link | Link Type |
| GB/T 1001.1-2021 | GB/T 1001.1-2021 | https://openstd.samr.gov.cn/bzgk/gb/newGbInfo?hcno=798CB031D91FFDCDF5706E72A41FEB5F | Chinese National Standard official page |
| GB/T 1000-2016 | GB/T 1000-2016 | https://www.spc.org.cn/online/e12e6dc7ad71fbf65b4ff1ca1fef5440.html | Chinese National Standard online service |
| IEC 60383-1:2023 | IEC 60383-1:2023 | https://webstore.iec.ch/en/publication/60733 | IEC official standard store |
| IEC 60168:1994 | IEC 60168:1994 | https://webstore.iec.ch/en/publication/917 | IEC official standard store |
| LAPP Insulators | LAPP Insulators | https://www.lappinsulators.com/us/about-us/ | International insulator manufacturer website |
| CCCME | China Chamber of Commerce for Import and Export of Machinery and Electronic Products | https://www.cccme.cn/cp/about/profile.aspx?cn=undefined&language=en | Industry chamber of commerce website |
P-10T pin type insulator Applications
The P-10T pin insulator is primarily designed for 10kV overhead distribution lines, where it serves to both support conductors and provide electrical insulation between the conductor and the grounded crossarm. Typical applications include:
- Distribution networks — Medium-voltage overhead distribution lines in urban and rural areas
- Pole-mounted installations — Cross-arm mounting on wooden or concrete poles
- Substation connections — Insulation for incoming and outgoing distribution feeders
- Traction lines — Applicable for AC overhead traction line insulation within its voltage class
The pin-type design allows the conductor to be secured in the top groove or side groove of the insulator head, making it suitable for straight-line and small-angle pole configurations. The M16 threaded pin provides secure attachment to standard cross-arm hardware.
P-10T Pin Type Insulator Quality Assurance & Testing
Each P-10T insulator undergoes rigorous testing protocols in accordance with GB/T 1001.1-2021 requirements, including:
- Power frequency dry and wet withstand voltage tests — Verifying insulation integrity under dry and rainy conditions
- Lightning impulse withstand voltage test — Confirming surge protection capability
- Power frequency puncture voltage test — Ensuring the ceramic body will not puncture under sustained overvoltage
- Radio influence voltage (RIV) measurement — Controlling corona discharge to within acceptable limits for communication interference
- Cantilever strength test — Validating mechanical load-bearing capacity
The 11kN cantilever strength rating provides a safety margin for conductor tension, wind loading, and ice loading conditions typical of 10kV distribution line installations.
Related reading: High Voltage Insulator Testing Methods | Understanding RIV in Distribution Insulators
P-10T Pin Type Insulator Packing, Shipping & Export Information
| Parameter | Details |
| Net Weight (each) | ~1.8 kg |
| Standard Export Packing | Wooden case or palletized |
| HS Code | 8546.20 (Ceramic electrical insulators) |
| Port of Loading | Shanghai / Ningbo / Qingdao (China) |
| Export Markets | USA, Europe, Southeast Asia, Africa, South America, Middle East |
Chinese pin insulator manufacturers routinely export to over 50 countries, with established distribution channels in North America, Europe, and emerging markets. Products are typically shipped in wooden cases or on pallets with appropriate cushioning to prevent breakage during transit.
Why Choose the P-10T Pin Insulator?
- GB standard compliant — Manufactured and tested to Chinese national standards, with equivalent IEC test methodology
- Proven design — Part of the P-series family with decades of field deployment in distribution networks worldwide
- Reliable mechanical performance — 11kN cantilever strength suitable for standard 10kV distribution line tensions
- Excellent electrical characteristics — 55kV dry / 30kV wet power frequency withstand, 90kV BIL
- Low RIV — 50μV maximum at 1000 kHz, minimizing communication interference
- Export-ready — Standardized dimensions, ISO-certified production, and established international shipping logistics
FAQ
Q: What is the difference between P-6T and P-10T pin insulators?
A: The primary difference is the rated voltage — P-6T is rated for 6kV systems while P-10T is rated for 10kV systems. The P-10T typically has larger dimensions and higher electrical withstand values, such as 195mm creepage distance and 90kV dry lightning impulse withstand voltage.
Q: Is the P-10T pin insulator available in composite (polymer) material?
A: The P-10T is a traditional porcelain pin insulator. For composite polymer alternatives in the 6–10kV class, consider the FPQ series composite pin insulators, which offer lighter weight and enhanced pollution resistance.
Q: What pin thread size does the P-10T use?
A: The P-10T uses an M16 threaded steel pin, compatible with standard cross-arm mounting hardware for distribution poles.
Q: Can the P-10T be used in highly polluted environments?
A: For heavily polluted areas, a PQ series heavy-pollution type pin insulator is recommended, which features an extended creepage distance for improved contamination performance.
About This Product Page
This specification page provides technical data for the P-10T Pin Type Insulator manufactured to GB standard. All dimensions, mechanical values, and electrical ratings are typical values for standard production units. For custom requirements, OEM specifications, or bulk quotations, please contact the manufacturer or authorized distributor directly.
Last updated: September 2026
Related Standards & Resources
| Resource | Description | Link |
| GB/T 1001.1-2021 | Insulators for overhead lines above 1,000V (Chinese National Standard) — Official standard information from China’s State Administration for Market Regulation | https://openstd.samr.gov.cn/bzgk/gb/newGbInfo?hcno=798CB031D91FFDCDF5706E72A41FEB5F |
| GB/T 1000-2016 | Dimensions and characteristics of pin insulators of ceramic for high-voltage overhead lines — Chinese National Standard for pin-type porcelain insulators up to 10kV | https://www.spc.org.cn/online/e12e6dc7ad71fbf65b4ff1ca1fef5440.html |
| IEC 60383-1:2023 | Insulators for overhead lines with nominal voltage above 1,000V — International Electrotechnical Commission official standard | https://webstore.iec.ch/en/publication/60733 |
| IEC 60168:1994 | Tests on indoor and outdoor post insulators of ceramic material — IEC standard for ceramic insulator testing | https://webstore.iec.ch/en/publication/917 |
| LAPP Insulators | Global Porcelain Insulator Manufacturer — International insulator manufacturer with production facilities in USA and Europe | https://www.lappinsulators.com/us/about-us/ |
| CCCME | China Chamber of Commerce for Import and Export of Machinery and Electronic Products — Verified Chinese insulator manufacturers and exporters directory | https://www.cccme.cn/cp/about/profile.aspx?cn=undefined&language=en |
Internal Link Reference
| Anchor Text | Target Link | Purpose |
| P-10T Pin Type Insulator | https://www.tcinsulators.com/ | Main product page |
| P-series pin insulator family | https://www.tcinsulators.com/ | P-series category page |
| P-6T Pin Type Insulator (6kV) | https://www.tcinsulators.com/ | Related product |
| P-15T Pin Type Insulator (15kV) | https://www.tcinsulators.com/ | Related product |
| PQ Series Heavy Pollution Pin Insulators | https://www.tcinsulators.com/ | Heavy pollution series |
| FPQ series composite pin insulators | https://www.tcinsulators.com/ | Composite insulator series |
