15002 long-rod insulators Porcelain Suspension – 40kN, 863mm Creepage, IEC 60383
The 15002 long-rod insulators are premium suspension porcelain solution for medium-voltage to high-voltage AC overhead transmission lines. It is designed for exceptional pollution performance and long-term reliability.
Manufactured in full compliance with [IEC 60383](https://webstore.iec.ch/en/publication/60733), this 15002 long-rod insulator features a one‑piece porcelain body. It eliminates internal metal parts, reducing radio interference and ensuring uniform voltage distribution along the string.
With a mechanical failing load of 40kN and a creepage distance of 863mm, the 15002 long-rod insulator excels in coastal salt‑fog, industrial pollution, and desert environments.
Compared to traditional disc‑type insulators, the long‑rod design offers a smooth, self‑cleaning surface. It reduces maintenance and withstands extreme temperature cycling from ‑70°C to +105°C.
Whether for new line construction or retrofit projects, the 15002 long‑rod insulator delivers durable, cost‑effective insulation.
15002 long-rod insulators – Technical Specifications
The 15002 long‑rod insulator has a combined mechanical and electrical (M&E) failing load of 40kN, making it suitable for tangent suspension on 33–66 kV lines.
Its nominal creepage distance of 863mm provides superior flashover protection. The dry lightning impulse withstand voltage reaches 213kV (positive polarity). The nominal diameter is 135mm, and the overall height is 438mm.
The coupling is the standard 16L ball & socket type, fully interchangeable per IEC dimensional requirements. The 15002 long-rod insulator is available in both brown and gray glaze (brown standard, gray optional).
All units undergo a porosity test at 180MPa·h to guarantee zero porosity, in line with [IEC 60383](https://webstore.iec.ch/en/publication/60733).
15002 long-rod insulators – Complete Technical Data (per IEC 60383)
The table below lists all technical parameters for both glaze colors. **All values are identical** except for the glaze color.
| Parameter | 15002 (Brown Glaze) | 15002 (Gray Glaze) |
| Glaze Color | Brown | Gray |
| Figure No. | 1 | 1 |
| Height (mm) | 438 | 438 |
| Nominal Diameter D (mm) | 135 | 135 |
| Creepage Distance (mm) | 863 | 863 |
| Mechanical Failing Load (kN) | 40 | 40 |
| Routine Tensile Load (kN) | 32 | 32 |
| Coupling Size | 16L (Ball & Socket) | 16L (Ball & Socket) |
| Temperature Cycle Test | 70K / 3 times | 70K / 3 times |
| Porosity Test | 180 MPa·h | 180 MPa·h |
| Power‑freq. Wet Withstand Voltage (kV) | 65 | 65 |
| Dry Lightning Impulse Withstand Voltage (kV) | 213 | 213 |
| Net Weight (kg) | 7.6 | 7.6 |
| Applied Standard | IEC 60383 | |
Note: Long‑rod insulators offer superior self‑cleaning and lower weight compared to multi‑disc strings.
15002 long-rod insulators – Material & Construction
Every 15002 long-rod insulator unit is crafted from high‑grade alumina porcelain. It is fired at over 1,300 °C using the wet process, ensuring maximum density and near‑zero porosity – verified by the 180 MPa·h test.
The single‑piece porcelain rod provides excellent dielectric strength. The metal end‑fittings (cap and pin) are made of malleable cast iron and hot‑dip galvanised steel, offering outstanding corrosion resistance.
The porcelain‑to‑metal bond uses high‑quality Portland cement. This guarantees mechanical stability under thermal cycling from ‑70 °C to +105 °C.
The hard, glossy glaze (brown or gray) repels contaminants and facilitates rain‑washing, significantly reducing manual cleaning frequency.
15002 long-rod insulators – Applications & Installation
The 15002 long-rod insulator is widely deployed on 33 kV to 66 kV AC overhead lines, distribution networks, and substation entry towers. Its 863 mm creepage makes it especially attractive for heavily polluted areas, where equivalent disc strings would require extra units.
Typical applications:
– 33 kV lines – single suspension strings in coastal or industrial zones
– 66 kV lines – double or tandem strings for increased mechanical safety
– Substation entries – strain and dead‑end towers
The standard 16L ball‑and‑socket coupling ensures interchangeability with existing hardware. Live‑line maintenance is simplified by hot‑stick compatibility, reducing outage times.
Explore our complete range of long‑rod and cap‑and‑pin suspension insulators for additional application-specific solutions.
The 15002 long-rod insulator is typically used in multi‑unit strings to achieve required voltage ratings. See our full range of suspension insulators and transmission hardware for more options.
15002 long-rod insulators – Quality & Performance Advantages
Compared to multi‑disc strings, the 15002 long-rod insulators offer lower weight, fewer components, and better self‑cleaning. The solid porcelain core eliminates internal air gaps, preventing puncture failures and ensuring low radio interference.
With a service life exceeding 50 years, the 15002 long-rod insulators requires minimal routine maintenance. Every unit passes 100% routine testing before dispatch, including:
– Visual and dimensional inspection
– Routine tensile load (32 kN)
– Wet power‑frequency withstand (65 kV)
– Porosity and temperature‑cycle tests as prototype verification per IEC 60383
Packaging: each insulator is foam‑cushioned and packed in sturdy wooden crates or corrugated cartons. Flexible shipping (FOB, CIF, EXW) with lead times 15‑30 days depending on order size.
For datasheets, CAD drawings, or pricing on the 15002 long-rod insulators (brown or gray), please contact our sales team via the inquiry form. OEM services and free technical consultation for string design are also available. For installation guidance, refer to our insulator string assembly guide.
Why Choose Our 15002 long-rod insulators?
Choosing the right long‑rod insulator for your transmission project is critical. Our 15002 long-rod insulators are subject to rigorous quality control – from raw material inspection to final electrical testing – all aligned with IEC 60383.
We understand the cost of line outages, so every 15002 long-rod insulator is built for long‑term reliability. With over a decade of experience in porcelain manufacturing, we offer competitive pricing, fast delivery, and expert technical support.
Whether you need a sample batch or a full container, the 15002 long-rod insulators (brown or gray) is available with short lead times. Contact us today to enhance your grid reliability in polluted environments.
