H1: XWP-210 Anti-Pollution Insulator (U210BP) Suspension — 210kN, 450mm Creepage, 130kV Puncture, 20/24 Dual Coupling, Brown/Gray Glaze, IEC 60383

The XWP-210 Anti-Pollution Insulator (U210BP) Suspension is the absolute ultimate-strength cap-and-pin disc insulator in our entire anti-pollution series, engineered for high‑voltage AC overhead transmission lines requiring the highest possible mechanical capacity, superior pollution performance, and maximum hardware flexibility. Its 210kN mechanical rating, ultra-long 450mm creepage distance, and dual 20/24 coupling options deliver unparalleled performance in the most extreme high-voltage applications.

 

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 210kN — the highest in the entire anti-pollution series — an ultra-long creepage distance of 450mm, and the unique flexibility of 20/24 dual coupling options, the XWP-210 delivers dependable performance on 110–220 kV lines in the most severe contamination zones. It provides a 140kN strength advantage over 70kN anti-pollution insulators, a 110kN advantage over 100kN models, a 90kN advantage over 120kN models, and a 50kN advantage over 160kN models — all with the added benefit of dual coupling compatibility for maximum hardware flexibility.

 

The advanced anti-pollution shed design incorporates an optimised multi-rib profile that maximises creepage length while maintaining superior self‑cleaning properties. The 300mm diameter and 170mm spacing provide substantial surface area for improved pollution performance and enhanced mechanical stability under the most extreme conditions.

 

Whether you are designing 110–220 kV transmission lines for the most demanding strain towers, ultra-long spans in severely contaminated areas, or EHV transmission corridors requiring absolute maximum mechanical strength and hardware flexibility, the XWP-210 Anti-Pollution Insulator Suspension  offers the ultimate high‑performance choice for your infrastructure, with the flexibility to select both your preferred glaze color and coupling size.

 

H2: XWP-210 Anti-Pollution Insulator Suspension — Technical Specifications (Brown & Gray Glaze)

The XWP-210 Anti-Pollution Insulator Suspension  is rated with a combined mechanical and electrical (M&E) failing load of 210kN — the absolute highest in the entire anti-pollution series — making it suitable for tangent suspension, light‑tension, strain, and dead‑end applications on 110–220 kV overhead lines in severely contaminated areas where absolute maximum 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 130kV (positive polarity), and the power frequency wet withstand voltage is 45kV.

 

The nominal diameter is 300mm, with a spacing (height) of 170mm. The larger dimensions provide substantial surface area for improved pollution performance, enhanced self‑cleaning, and superior mechanical stability under the highest mechanical loads.

 

The coupling hardware is available in both 20 and 24 ball‑and‑socket types — the only model in the anti-pollution series with dual coupling options — ensuring maximum flexibility for different hardware configurations and full interchangeability with existing heavy-duty 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 105kN and an impact strength test of 11.3Nm to verify mechanical integrity prior to dispatch. Power frequency puncture voltage reaches 130kV — the highest in the anti-pollution series — and radio interference voltage (RIV) is exceptionally low at just 50μV at 1000 kHz.

 

H2: XWP-210 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	XWP-210 (Brown Glaze)	XWP-210 (Gray Glaze)
Glaze Color	Brown	Gray
Type Designation	XWP-210 (U210BP)	XWP-210 (U210BP)
Figure / Profile	Anti-Pollution Type	Anti-Pollution Type
Diameter D (mm)	300	300
Spacing H (mm)	170	170
Creepage Distance (mm)	450	450
Coupling Size	20 / 24	20 / 24
Combined M&E Strength (kN)	210	210
Routine Proof Test Load (kN)	105	105
Impact Strength (Nm)	11.3	11.3
Power Frequency Dry Withstand Voltage (kV)	80	80
Power Frequency Wet Withstand Voltage (kV)	45	45
Dry Lightning Impulse Withstand Voltage (kV)	130	130
Power Frequency Puncture Voltage (kV)	130	130
Test Voltage RMS to Ground (kV)	10	10
Maximum RIV at 1000 kHz (μV)	50	50
Net Weight, Approximate (kg)	12.5	12.5
Applied Standard	IEC 60383	IEC 60383

 

Note: The advanced anti-pollution design of the XWP-210 suspension insulator combines the absolute highest 210kN mechanical rating in the series with an ultra-long 450mm creepage distance, 300mm diameter, 170mm spacing, and unique 20/24 dual coupling options — delivering ultimate mechanical strength, superior flashover performance, and maximum hardware flexibility for 110–220 kV applications in the most severe contamination environments. The 130kV puncture voltage is the highest in the anti-pollution series. Both brown and gray glazes offer the same outstanding performance.

 

H2: XWP-210 Anti-Pollution Insulator Suspension — Material and Construction

Each XWP-210 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 absolute highest-in-series 210kN rating is achieved through advanced mechanical design, premium material selection, and the unique 20/24 dual coupling options.

 

The advanced anti-pollution shed profile is carefully engineered to maximise creepage distance (450mm) while maintaining superior self‑cleaning properties. The 300mm diameter and 170mm spacing provide substantial surface area for improved pollution performance, enhanced self‑cleaning, and superior mechanical stability under the highest mechanical loads in the series.

 

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: XWP-210 Anti-Pollution Insulator Suspension — Applications and Installation

The XWP-210 Anti-Pollution Insulator Suspension  is widely deployed on 110 kV to 220 kV AC overhead transmission lines, as well as substation entry towers and EHV transmission corridors, in areas where absolute maximum mechanical strength, severe contamination conditions, and hardware flexibility are required.

 

The 210kN mechanical rating — the absolute highest in the entire anti-pollution series — combined with the ultra-long 450mm creepage distance, 300mm diameter, 170mm spacing, and unique 20/24 dual coupling options makes it particularly suitable for:

• 110–220 kV transmission lines with severe pollution – Where higher system voltages require the highest-capacity insulators with extended creepage distances and absolute maximum mechanical strength.
• Ultra-long-span river crossings in contaminated areas – Where conductor weight and tension are maximised, combined with severe pollution challenges.
• Extreme heavy icing zones – Where ice accretion adds significant weight and mechanical stress, often exceeding the capacity of 160kN insulators.
• Heavy industrial zones with strain and dead‑end towers – Where airborne contaminants create severe pollution conditions, and absolute maximum mechanical strength is required.
• Coastal and marine environments with extreme wind loads – Where heavy salt spray combines with extreme wind loads, requiring the highest mechanical capacity and maximum pollution performance.
• Critical transmission corridors – Where system reliability is paramount, and maximum mechanical margins, pollution margins, and hardware flexibility are required.
• EHV dead‑end and heavy-angle towers – Where absolute maximum mechanical capacity and heavy-duty hardware are required.
• International projects with varying hardware standards – Where the ability to accommodate both 20 and 24 coupling sizes provides maximum flexibility.

 

Its 210kN mechanical capacity makes it suitable for suspension, light‑tension, strain, and dead‑end applications, with absolute maximum strength margin for ultra-long spans, extreme angle towers, heavy icing, and the most extreme loading conditions. The 450mm creepage provides maximum pollution flashover performance.

 

Typical application scenarios include:

• 110 kV lines – Strain, dead‑end, and heavy-angle towers in severely polluted areas requiring absolute maximum mechanical strength.
• 220 kV lines – Strain, dead‑end, and heavy-angle towers where both pollution performance and maximum mechanical strength are critical.
• Substation entries – Heavy-duty insulation for strain and dead‑end towers in the most contaminated environments.
• Critical EHV infrastructure – Lines where system reliability is paramount and maximum performance margins are required.

 

The unique 20/24 dual coupling options ensure compatibility with both existing 20 and 24 hardware systems, providing maximum flexibility for different project requirements, regional standards, and global applications. 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 XWP-210 Anti-Pollution Insulator Suspension  can be assembled in strings. Explore our full range of suspension insulators and transmission hardware for more options.

 

H2: XWP-210 Anti-Pollution Insulator Suspension — Quality and Performance Advantages

The XWP-210 Anti-Pollution Insulator Suspension  represents the absolute ultimate in mechanical strength, pollution performance, and hardware flexibility in our anti-pollution series — the pinnacle of engineering excellence for the most demanding high-voltage applications.

 

Key performance advantages include:

• 210kN mechanical rating – The absolute highest in the entire anti-pollution series, providing 140kN (200%) more strength than 70kN anti-pollution insulators, 110kN (110%) more than 100kN models, 90kN (75%) more than 120kN models, and 50kN (31%) more than 160kN models.
• 450mm ultra-long creepage distance – 150mm (+50%) longer than standard 300mm designs, ensuring maximum pollution flashover performance.
• 300mm diameter – Substantial surface area for excellent pollution performance and self‑cleaning.
• 170mm spacing – Enhanced mechanical stability and surface area for the highest mechanical loads.
• 20/24 dual coupling options – The only anti-pollution model offering both coupling sizes, providing maximum hardware flexibility for different project requirements and global applications.
• 130kV lightning impulse withstand voltage – The highest in the anti-pollution series.
• 130kV power frequency puncture voltage – The highest in the anti-pollution series, demonstrating exceptional dielectric robustness.
• 105kN routine proof test – The highest proof load in the entire anti-pollution series.
• 11.3Nm impact strength – The highest impact resistance in the entire anti-pollution series.
• 45kV wet withstand voltage – 3kV higher than 70kN anti-pollution models.

 

At 12.5kg, the XWP-210 offers an exceptional strength-to-weight ratio for a 210kN anti-pollution insulator — only 3.4kg heavier than the XWP6-160 (9.1kg) while delivering a 50kN (31%) higher mechanical rating and the unique flexibility of dual coupling options.

 

The solid porcelain body ensures excellent dielectric strength. 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 XWP-210 requires minimal routine maintenance. Every unit undergoes 100% routine testing before dispatch, including:

• Visual and dimensional inspections.
• Routine proof test load verification (105 kN).
• Impact strength testing (11.3 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 XWP-210 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: XWP-210 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 110–220 kV applications with severe contamination, extreme mechanical demands, and the need for hardware flexibility. Our XWP-210 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 the most demanding EHV transmission projects require the absolute highest levels of mechanical strength, pollution performance, and hardware flexibility — where standard 70kN, 100kN, 120kN, or even 160kN insulators may not provide adequate safety margins.

 

That is why the XWP-210 Anti-Pollution Insulator Suspension  is specifically engineered with a 210kN mechanical rating — the absolute highest in the entire anti-pollution series — combined with an ultra-long 450mm creepage distance, substantial 300mm diameter, robust 170mm spacing, unique 20/24 dual coupling options, and the highest 130kV puncture voltage in the series to deliver absolute maximum performance in the most demanding 110–220 kV applications. 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 XWP-210 Anti-Pollution Insulator Suspension  (brown or gray) is available with short lead times. Contact us today to discover how the XWP-210 Anti-Pollution Insulator Suspension  can strengthen your grid reliability in the most extreme environments with the ultimate combination of mechanical strength, pollution performance, and hardware flexibility.

 

Ultimate-Strength Anti-Pollution Comparison — XWP6-160 vs XWP-210

Parameter	XWP6-160	XWP-210	Advantage
M&E Strength	160 kN	210 kN	+50 kN (+31%)
Routine Proof Test	80 kN	105 kN	+25 kN
Impact Strength	10 Nm	11.3 Nm	+1.3 Nm
Diameter D	330 mm	300 mm	-30 mm
Spacing H	170 mm	170 mm	Identical
Creepage Distance	450 mm	450 mm	Identical
Coupling Size	20	20 / 24	Dual coupling flexibility
Puncture Voltage	120 kV	130 kV	+10 kV
Net Weight	9.1 kg	12.5 kg	+3.4 kg (for +50kN)
Key Advantage	Largest diameter	Ultimate strength + dual coupling	31% higher M&E + hardware flexibility

 

Anti-Pollution Series — Complete Overview (Highest Strength Models)

Parameter	XWP2-120	XWP3-120	XWP2-160	XWP6-160	XWP-210
M&E Strength	120 kN	120 kN	160 kN	160 kN	210 kN
Diameter D	280 mm	280 mm	300 mm	330 mm	300 mm
Spacing H	160 mm	146 mm	155 mm	170 mm	170 mm
Creepage	450 mm	450 mm	450 mm	450 mm	450 mm
Coupling	16	16	20	20	20/24
Puncture Voltage	120 kV	120 kV	120 kV	120 kV	130 kV
Proof Test	60 kN	60 kN	80 kN	80 kN	105 kN
Net Weight	8.5 kg	8.3 kg	8.9 kg	9.1 kg	12.5 kg
Key Advantage	High strength	Compact strength	Ultimate strength	Max surface area	Absolute ultimate strength + dual coupling
Best Application	Max load + pollution	Max load + compact string	66-110kV / max load	Max load + max surface area	110-220kV / absolute max load + hardware flexibility