H1: 22PC Line Post Pin Insulator — 12.5kN Porcelain Insulator for Mexican Distribution Lines
The 22PC Line Post Pin Insulator / 22 PC Porcelain Insulator is a solid-core porcelain line post pin insulator designed for mechanical support and electrical insulation of conductors in overhead power distribution lines.
Manufactured in compliance with CFE 52000-91 — the Mexican Federal Electricity Commission specification for porcelain post insulators — this insulator provides reliable performance for distribution applications with a 23 kV system rated voltage. The G1 design features a grey glaze finish and is intended exclusively for the Mexican market.
Whether used in crossarm-mounted distribution lines, pole-top structures, or line post applications, the 22PC Line Post Pin Insulator offers a cost-effective and durable solution for modern distribution infrastructure.
H2: 22PC Line Post Pin Insulator Technical Specifications
The 22PC Line Post Pin Insulator features a cantilever strength of 12.5 kN, making it ideal for line post applications in distribution networks. Key electrical and dimensional ratings are detailed below.
22PC Line Post Pin Insulator Electrical and Mechanical Specifications
| Characteristic | Value |
| System Rated Voltage | 23 kV |
| Creepage Distance | 516 mm |
| Cantilever Strength | 12.5 kN |
| Low Frequency Flashover Voltage, Dry | 95 kV |
| Low Frequency Flashover Voltage, Wet | 65 kV |
| Positive Critical Impulse Flashover Voltage | 160 kV |
| Radio Influence Voltage Test Voltage to Ground | 22 kV |
| Max. RIV | 100 μV |
| Color | Grey |
22PC Line Post Pin Insulator Dimensions (mm)
| Item | Value |
| Top Diameter | Ø175 ±6 |
| Top Inner / Upper Bore | Ø73 ±3 |
| Radius | R25 ±2 |
| Middle / Lower Shed Diameter | Ø150 ±6 |
| Overall Height | 336 ±13 |
| Bottom Thread | M20 x 2.5 |
| Bottom Bore / Related Diameter | Ø44 ±2 |
| Bottom Base Diameter | Ø120 ±3 |
| Bottom Base Height | 57 ±3 |
| Additional Heights | 10 ±2; 22 ±2 |
H2: 22PC Line Post Pin Insulator Material & Construction
Every unit of the 22PC Line Post Pin Insulator is made from high-grade porcelain with a grey glaze, fired at high temperature to achieve maximum density and near-zero porosity. The solid-core line post design ensures easy handling and reliable performance under extreme thermal cycling.
The hard, glossy glaze coating offers good self-cleaning properties, reducing maintenance frequency. The line post pin design features an internal thread M20 x 2.5, a bottom bore of Ø44 ±2 mm, and an overall height of 336 ±13 mm.
Material: Porcelain, grey glaze
Product Type: Line post pin insulator design
Standard Reference: CFE 52000-91 – Aisladores de porcelana tipo poste para lineas de distribucion
(Porcelain post insulators for distribution lines)
CFE Standard Overview: 52000-91 – Technical requirements for acquisition and electromechanical characteristics
Source File: 22PC G1 drg.pdf
Manufacturer: BONLE (MINQING) LOW VOLTAGE ELECTRIC CO., LTD.
Note: The supplied drawing does not explicitly state a CFE standard number. The CFE reference above is provided as the applicable standard for porcelain line post insulators for distribution lines.
For CFE standard context, refer to the official CFE website. For related porcelain insulator options, see our porcelain insulators and suspension insulators. For general porcelain manufacturing standards, visit the International Electrotechnical Commission (IEC) and ASTM International.
H2: 22PC Line Post Pin Insulator Applications & Installation
The 22PC Line Post Pin Insulator is widely used in overhead power distribution lines, typically installed on crossarms and pole-mounted structures. It is ideal for:
- Overhead distribution line conductor support
- Crossarm-mounted applications
- Pole-top structures
- Line post and pin insulator applications in distribution networks
- CFE-standard distribution structures in Mexico
The line post pin design allows easy mounting using conductor tie wires or standard hardware, with internal thread M20 x 2.5 and bottom bore Ø44 ±2 mm. Explore our full range of suspension insulators and transmission hardware for more options.
H2: 22PC Line Post Pin Insulator Quality & Performance Advantages
Compared to polymer alternatives, porcelain offers unmatched resistance to UV radiation, bird pecking, and scratch damage. Its glaze reduces continuous water film formation, significantly raising pollution flashover voltage.
Moreover, the 22PC Line Post Pin Insulator requires minimal routine maintenance and delivers a long service life under normal operating conditions. Full testing procedures are detailed in CFE 52000-91 and related standards published by NEMA.
Every unit undergoes routine electrical and mechanical testing before dispatch, including visual inspection, dimensional checks, mechanical load tests, and high-voltage withstand tests.
Design tests — such as dry flashover, wet flashover, critical impulse flashover, radio influence voltage, and thermal shock — are performed per CFE 52000-91 standards on new designs.
Quality conformance tests including porosity, galvanizing, and cantilever-strength tests are conducted on each lot. Full test reports and traceability records are provided for each batch.
For installation guidance, refer to our insulator string assembly guide.
Each insulator is individually packed with foam cushioning and secured in sturdy cartons to prevent transit damage. We offer flexible shipping options (FOB, CIF, EXW) with lead times of 15–30 days depending on order quantity.
For detailed datasheets, CAD drawings, or competitive pricing on the 22PC Line Post Pin Insulator, please contact our sales team via the inquiry form below. We also offer OEM services and free technical consultation for distribution line design.
H2: Why Choose Our 22PC Line Post Pin Insulator
When selecting a CFE-referenced porcelain insulator for your distribution project, quality and reliability are paramount. Our 22PC Line Post Pin Insulator is subject to strict quality control at every production stage — from raw material inspection to final electrical testing.
We understand that distribution line outages are costly, which is why each 22PC Line Post Pin Insulator is designed for long-term durability. With years of experience in porcelain insulator manufacturing, we provide competitive pricing, fast delivery, and dedicated technical support.
Whether you need a small sample batch or a full container order, our 22PC Line Post Pin Insulator is available with short lead times. Contact us today to learn how the 22PC Line Post Pin Insulator can enhance your distribution grid reliability.
Missing Information
The following items still require confirmation from a readable original PDF, drawing, or official datasheet:
- Figure No. (per drawing)
- Negative critical impulse flashover
- Dry arcing distance
- Net weight
- IRSACLAVE / IRSACOTAS
- Complete Sheet 2 of 2 data
- Additional marking / identification details
- Full packaging dimensions and gross weight
- IRSA Drawing Number (if applicable)
- Emission / Revision details
- Drawing approval details
Note: If the original 22PC G1 PDF contains graphical drawings or tables, please provide a text-readable version or clear images.
The current supplied content confirms the main electrical, mechanical, dimensional, and standard data.
