H1: XWP3-100 Anti-Pollution Insulator (U100BELP) Suspension — 100kN, 450mm Creepage, 120kV Lightning Impulse, Lightweight Design, Brown/Gray Glaze, IEC 60383
The XWP3-100 Anti-Pollution Insulator (U100BELP) Suspension is a high-strength, light weight cap-and-pin disc insulator.
Engineered for medium‑voltage AC overhead transmission and distribution lines requiring elevated mechanical capacity, superior pollution performance, and minimal tower loading.
Its ultra-long creepage distance of 450mm and 100kN mechanical rating are combined in a compact, lightweight package weighing just 7.9kg.
Manufactured in compliance with IEC 60383 international standards, this anti-pollution insulator features a robust porcelain disc body with a standard cap-and-pin design.
The unit is available in either brown (standard) or gray (optional) glaze, both offering identical mechanical and electrical performance.
With a combined mechanical and electrical (M&E) failing load of 100kN and an ultra-long creepage distance of 450mm.
The XWP3-100 delivers dependable performance on 33–66 kV lines in the most severe contamination zones — providing a 30kN strength advantage over 70kN anti-pollution insulators while maintaining a compact 146mm spacing and weighing just 7.9kg.
The advanced anti-pollution shed design incorporates an optimised multi-rib profile that maximises creepage length while maintaining superior self‑cleaning properties.
The 280mm diameter and compact 146mm spacing ensure excellent pollution performance and mechanical stability while minimising overall string length.
Whether you are upgrading existing lines in severely contaminated areas or planning new transmission projects requiring both high mechanical strength and maximum pollution performance with minimal tower loading.
The XWP3-100 Anti-Pollution Insulator Suspension offers a durable, high‑performance, light weight choice for your infrastructure, with the flexibility to select your preferred glaze color.
H2: XWP3-100 Anti-Pollution Insulator Suspension — Technical Specifications (Brown & Gray Glaze)
The XWP3-100 Anti-Pollution Insulator Suspension is rated with a combined mechanical and electrical (M&E) failing load of 100kN, making it suitable for tangent suspension, light‑tension, and strain applications on 33–66 kV overhead lines in severely contaminated areas where higher mechanical strength is required.
Its ultra-long creepage distance of 450mm — 150mm longer than standard 300mm designs — provides superior pollution flashover performance in the most severe industrial, coastal, desert, and heavy-contamination environments.
The dry lightning impulse withstand voltage reaches 120kV (positive polarity), and the power frequency wet withstand voltage is 45kV — 3kV higher than 70kN anti-pollution models.
The nominal diameter is 280mm, with a compact spacing (height) of 146mm — 14mm shorter than the XWP2-100 — allowing for reduced string length and lower tower loading while maintaining the same 450mm creepage distance.
The coupling hardware is the standard 16 ball‑and‑socket type, ensuring full interchangeability with existing fittings per IEC dimensional requirements.
The glaze is available in both brown (standard) and gray (optional). All other technical parameters — mechanical, electrical, and dimensional — are identical between the two color options.
Every unit undergoes a routine proof test load of 50kN and an impact strength test of 7Nm to verify mechanical integrity prior to dispatch.
Power frequency puncture voltage reaches 120kV, and radio interference voltage (RIV) is exceptionally low at just 50μV at 1000 kHz.
H2: XWP3-100 Anti-Pollution Insulator Suspension — Complete Technical Data (Brown vs. Gray Glaze)
The following table lists all technical parameters for both glaze color options. All values are identical except for the glaze color.
| Parameter | XWP3-100 (Brown Glaze) | XWP3-100 (Gray Glaze) |
| Glaze Color | Brown | Gray |
| Type Designation | XWP3-100 (U100BELP) | XWP3-100 (U100BELP) |
| Figure / Profile | Anti-Pollution Type | Anti-Pollution Type |
| Diameter D (mm) | 280 | 280 |
| Spacing H (mm) | 146 | 146 |
| Creepage Distance (mm) | 450 | 450 |
| Coupling Size | 16 | 16 |
| Combined M&E Strength (kN) | 100 | 100 |
| Routine Proof Test Load (kN) | 50 | 50 |
| Impact Strength (Nm) | 7 | 7 |
| Power Frequency Dry Withstand Voltage (kV) | 80 | 80 |
| Power Frequency Wet Withstand Voltage (kV) | 45 | 45 |
| Dry Lightning Impulse Withstand Voltage (kV) | 120 | 120 |
| Power Frequency Puncture Voltage (kV) | 120 | 120 |
| Test Voltage RMS to Ground (kV) | 10 | 10 |
| Maximum RIV at 1000 kHz (μV) | 50 | 50 |
| Net Weight, Approximate (kg) | 7.9 | 7.9 |
| Applied Standard | IEC 60383 | IEC 60383 |
Note: The advanced anti-pollution design of the XWP3-100 suspension insulator combines a 100kN mechanical rating with an ultra-long 450mm creepage distance in a lightweight, compact 7.9kg package.
The 45kV wet withstand voltage exceeds that of 70kN anti-pollution models, and the compact 146mm spacing reduces string length and tower loading compared to alternative 100kN designs.
Both brown and gray glazes offer the same outstanding performance.
H2: XWP3-100 Anti-Pollution Insulator Suspension — Material and Construction
Each XWP3-100 Anti-Pollution Insulator Suspension unit is produced from high‑grade porcelain, fired at over 1,300 °C using the wet process, achieving maximum density and near‑zero porosity.
The cap-and-pin design features a porcelain disc body with a standard metal cap and pin. The metal components are manufactured from malleable cast iron and hot‑dip galvanised steel, providing excellent corrosion resistance in diverse atmospheric conditions.
The higher 100kN rating is achieved through enhanced mechanical design while maintaining a compact 146mm spacing.
The advanced anti-pollution shed profile is carefully engineered to maximise creepage distance (450mm) while maintaining superior self‑cleaning properties.
The 280mm diameter provides increased surface area for improved pollution performance, while the compact 146mm spacing minimises overall string length.
The cement bonding between the porcelain body and metal parts uses high‑quality Portland cement, guaranteeing mechanical stability across extreme thermal cycling.
The hard, glossy glaze — available in brown or gray — further enhances self‑cleaning and maintains surface integrity over decades of service.
Both glaze colors are applied using the same high‑quality process, ensuring identical durability, hardness, and electrical performance.
H2: XWP3-100 Anti-Pollution Insulator Suspension — Applications and Installation
The XWP3-100 Anti-Pollution Insulator Suspension is widely deployed on 33 kV to 66 kV AC overhead transmission and distribution lines, as well as substation entry towers, in areas where high mechanical strength, severe contamination conditions, and reduced tower loading are all priorities.
The 100kN mechanical rating combined with the ultra-long 450mm creepage distance and lightweight 7.9kg design makes it particularly suitable for:
- Heavy industrial zones with long spans and tower loading concerns – Where airborne contaminants create severe pollution conditions, and reduced insulator weight helps minimise tower loading.
- Coastal and marine environments with high wind loads – Where heavy salt spray combines with high wind loads, requiring maximum pollution performance and elevated mechanical capacity without adding unnecessary weight.
- Desert and arid regions with long spans – Where wind‑borne sand and dust create challenging contamination conditions, and lightweight design reduces structural requirements.
- Strain and angle towers in contaminated areas – Where mechanical capacity requirements exceed 70kN suspension applications, and compact string length is desired.
- Retrofit projects – Where upgrading from 70kN to 100kN capacity is required without significantly increasing string length or tower loading.
Its 100kN mechanical capacity makes it suitable for both suspension and light‑tension applications, with extra strength margin for long spans, angle towers, and moderate icing conditions.
The ultra-long 450mm creepage provides reliable performance even under the most severe pollution conditions.
Typical application scenarios include:
- 33 kV lines – Single or double suspension strings in severely polluted industrial and coastal areas requiring higher mechanical strength with minimal string length.
- 66 kV lines – Suspension, light‑tension, and strain applications where both pollution performance and mechanical strength are critical, and reduced tower loading is beneficial.
- Substation entries – Reliable insulation for strain and dead‑end towers in the most contaminated environments.
The standard 16 ball‑and‑socket coupling ensures compatibility with existing clevis pins, yokes, and socket hardware.
The anti-pollution disc design facilitates easy hot‑stick handling for live‑line maintenance, minimizing system downtime during replacements.
For higher voltage requirements, multiple units of the XWP3-100 Anti-Pollution Insulator Suspension can be assembled in strings.
Explore our full range of suspension insulators and transmission hardware for more options.
H2: XWP3-100 Anti-Pollution Insulator Suspension — Quality and Performance Advantages
The XWP3-100 Anti-Pollution Insulator Suspension uniquely combines three critical performance attributes: high mechanical strength (100kN) , ultra-long pollution performance (450mm creepage) , and lightweight construction (7.9kg) .
Key performance advantages include:
- 100kN mechanical rating – 30kN (43%) higher than standard 70kN anti-pollution insulators, providing extra strength margin for long spans, angle towers, and moderate icing conditions.
- 450mm ultra-long creepage distance – 150mm (+50%) longer than standard 300mm designs, ensuring maximum pollution flashover performance.
- Compact 146mm spacing – 14mm shorter than the XWP2-100, reducing string length and minimising tower loading.
- Lightweight 7.9kg design – 0.6kg lighter than the XWP2-100 while delivering identical 100kN mechanical rating and 450mm creepage distance.
- 45kV wet withstand voltage – 3kV higher than 70kN anti-pollution models, providing enhanced wet performance.
- 280mm diameter – Large surface area for improved pollution performance and self‑cleaning.
At just 7.9kg, the XWP3-100 offers the best strength-to-weight ratio in the anti-pollution series — a full 1.2kg lighter than the XWP2-100 (8.5kg) while delivering identical 100kN strength and 450mm creepage performance.
The solid porcelain body ensures excellent dielectric strength, with a power frequency puncture voltage of 120kV.
Radio interference voltage (RIV) is exceptionally low at just 50μV at 1000 kHz, ensuring minimal electromagnetic interference with nearby communication systems.
With an expected service life exceeding 50 years under normal operating conditions, the XWP3-100 requires minimal routine maintenance. Every unit undergoes 100% routine testing before dispatch, including:
- Visual and dimensional inspections.
- Routine proof test load verification (50 kN).
- Impact strength testing (7 Nm).
- Power‑frequency wet and dry withstand voltage tests.
- Porosity and temperature‑cycle prototype testing per IEC 60383.
Each insulator is individually foam‑cushioned and securely packed in durable wooden crates or corrugated cartons.
This prevents damage during transit. We offer flexible shipping arrangements (FOB, CIF, EXW) with lead times of 15–30 days, depending on order quantity.
For detailed product datasheets, CAD drawings, or competitive pricing on the XWP3-100 Anti-Pollution Insulator Suspension (brown or gray), please contact our sales team via the inquiry form below.
We also provide OEM services and complimentary technical consultation for string assembly design. For installation guidance, refer to our insulator string assembly guide.
H2: XWP3-100 Anti-Pollution Insulator Suspension — Why Choose Our Product?
Selecting the right suspension insulator for your transmission infrastructure is critical to long‑term grid reliability — especially in severely contaminated environments where both pollution performance and mechanical strength are essential, and tower loading must be minimised.
Our XWP3-100 Anti-Pollution Insulator Suspension is manufactured under stringent quality control protocols at every production stage.
From raw material sourcing (high‑grade porcelain clay) to final high‑voltage electrical testing, every step aligns with IEC 60383.
We understand that many transmission projects face multiple challenges: severe pollution flashover risk, high mechanical demands from long spans or angle towers, and the need to minimise tower loading for cost-effective structural design.
That is why the XWP3-100 Anti-Pollution Insulator Suspension is specifically engineered with a 100kN mechanical rating combined with an ultra-long 450mm creepage distance and a light weight 7.9kg compact design — the optimal combination of high strength, maximum pollution performance, and minimal tower loading.
Additionally, we offer both brown and gray glaze options to match regional preferences or project specifications.
With over a decade of experience in porcelain insulator production, we offer competitive factory pricing, prompt delivery, and dedicated after‑sales technical support.
Whether you require a small sample batch for project validation or a full container shipment, the XWP3-100 Anti-Pollution Insulator Suspension (brown or gray) is available with short lead times.
Contact us today to discover how the XWP3-100 Anti-Pollution Insulator Suspension can strengthen your grid reliability in the most demanding contaminated environments while minimising tower loading.
Anti-Pollution Series Comparison — Complete Overview
| Parameter | XWP2-70 | XWP3-70 | XWP2-100 | XWP3-100 |
| M&E Strength | 70 kN | 70 kN | 100 kN | 100 kN |
| Diameter D | 255 mm | 280 mm | 280 mm | 280 mm |
| Spacing H | 146 mm | 160 mm | 160 mm | 146 mm |
| Creepage Distance | 400 mm | 450 mm | 450 mm | 450 mm |
| Wet Withstand Voltage | 42 kV | 42 kV | 45 kV | 45 kV |
| Net Weight | 5.9 kg | 6.7 kg | 8.5 kg | 7.9 kg |
| Relative Strength | Baseline | Identical | +30 kN | +30 kN |
| Key Advantage | Standard anti-pollution | Max creepage (450mm) | High strength | High strength + light weight |
| Best Application | Heavy industrial | Severe industrial | Severe industrial + high load | Severe industrial + high load + reduced tower loading |
XWP2-100 vs XWP3-100 Comparison
| Parameter | XWP2-100 | XWP3-100 | Advantage |
| M&E Strength | 100 kN | 100 kN | Identical |
| Diameter D | 280 mm | 280 mm | Identical |
| Spacing H | 160 mm | 146 mm | -14 mm (shorter string) |
| Creepage Distance | 450 mm | 450 mm | Identical |
| Wet Withstand Voltage | 45 kV | 45 kV | Identical |
| Net Weight | 8.5 kg | 7.9 kg | -0.6 kg (lighter) |
| Key Advantage | — | Compact + lightweight | Reduced tower loading |
