H1: XWP6-160 Anti-Pollution Insulator (U160BLP) Suspension — 160kN, 450mm Creepage, 330mm Diameter, 130kV Lightning Impulse, Size 20 Coupling, Brown/Gray Glaze, IEC 60383

The XWP6-160 Anti-Pollution Insulator (U160BLP) Suspension is the largest-diameter, highest-capacity cap-and-pin disc insulator in our anti-pollution series, engineered for high‑voltage AC overhead transmission lines requiring maximum mechanical strength, superior pollution performance, and the largest surface area for enhanced reliability. Its 330mm diameter, 160kN mechanical rating, and ultra-long 450mm creepage distance deliver unparalleled performance in the most demanding 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 160kN, an ultra-long creepage distance of 450mm, and a larger 330mm diameter with size 20 coupling, the XWP6-160 delivers dependable performance on 66–110 kV lines in the most severe contamination zones — providing a 90kN strength advantage over 70kN anti-pollution insulators and a 40kN advantage over 120kN models, all with the largest surface area in the series.

 

The advanced anti-pollution shed design incorporates an optimised multi-rib profile that maximises creepage length while maintaining superior self‑cleaning properties. The industry‑leading 330mm diameter and 170mm spacing provide the largest surface area in the anti-pollution series for improved pollution performance and enhanced mechanical stability under the most extreme conditions.

 

Whether you are designing 66–110 kV transmission lines for the most demanding strain towers, long spans in severely contaminated areas, or applications requiring maximum surface area for pollution performance, the XWP6-160 Anti-Pollution Insulator Suspension  offers the ultimate high‑performance choice for your infrastructure, with the flexibility to select your preferred glaze color.

 

H2: XWP6-160 Anti-Pollution Insulator Suspension — Technical Specifications (Brown & Gray Glaze)

The XWP6-160 Anti-Pollution Insulator Suspension  is rated with a combined mechanical and electrical (M&E) failing load of 160kN — the highest in the anti-pollution series — making it suitable for tangent suspension, light‑tension, strain, and dead‑end applications on 66–110 kV overhead lines in severely contaminated areas where 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) — 10kV higher than 70kN–120kN anti-pollution models — and the power frequency wet withstand voltage is 45kV.

 

The nominal diameter is 330mm — the largest in the anti-pollution series — with a spacing (height) of 170mm — also the tallest in the series. These largest-in-series dimensions provide the greatest surface area for improved pollution performance, enhanced self‑cleaning, and superior mechanical stability.

 

The coupling hardware is the larger 20 ball‑and‑socket type, ensuring full interchangeability with existing heavy-duty fittings per IEC dimensional requirements. The size 20 coupling accommodates the higher mechanical loads associated with the 160kN rating.

 

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 80kN and an impact strength test of 10Nm 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: XWP6-160 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	XWP6-160 (Brown Glaze)	XWP6-160 (Gray Glaze)
Glaze Color	Brown	Gray
Type Designation	XWP6-160 (U160BLP)	XWP6-160 (U160BLP)
Figure / Profile	Anti-Pollution Type	Anti-Pollution Type
Diameter D (mm)	330	330
Spacing H (mm)	170	170
Creepage Distance (mm)	450	450
Coupling Size	20	20
Combined M&E Strength (kN)	160	160
Routine Proof Test Load (kN)	80	80
Impact Strength (Nm)	10	10
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)	120	120
Test Voltage RMS to Ground (kV)	10	10
Maximum RIV at 1000 kHz (μV)	50	50
Net Weight, Approximate (kg)	9.1	9.1
Applied Standard	IEC 60383	IEC 60383

 

Note: The advanced anti-pollution design of the XWP6-160 suspension insulator combines the highest 160kN mechanical rating with the largest-in-series 330mm diameter and 170mm spacing — delivering maximum surface area, superior flashover performance, and exceptional mechanical stability for 66–110 kV applications in the most severe contamination environments.

 

The 130kV lightning impulse withstand voltage exceeds lower-rated models by 10kV. Both brown and gray glazes offer the same outstanding performance.

 

H2: XWP6-160 Anti-Pollution Insulator Suspension — Material and Construction

Each XWP6-160 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 highest-in-series 160kN rating is achieved through enhanced mechanical design, premium material selection, and the larger size 20 coupling.

 

The advanced anti-pollution shed profile is carefully engineered to maximise creepage distance (450mm) while maintaining superior self‑cleaning properties. The industry‑leading 330mm diameter — the largest in the anti-pollution series — and 170mm spacing — the tallest in the series — provide the greatest surface area for improved pollution performance, enhanced self‑cleaning, and superior mechanical stability.

 

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: XWP6-160 Anti-Pollution Insulator Suspension — Applications and Installation

The XWP6-160 Anti-Pollution Insulator Suspension  is widely deployed on 66 kV to 110 kV AC overhead transmission lines, as well as substation entry towers, in areas where maximum mechanical strength, severe contamination conditions, and the largest surface area are required.

 

The 160kN mechanical rating — the highest in the anti-pollution series — combined with the ultra-long 450mm creepage distance, industry‑leading 330mm diameter, 170mm spacing, and size 20 coupling makes it particularly suitable for:

• 66–110 kV transmission lines with severe pollution – Where higher system voltages require the largest insulators with extended creepage distances, maximum mechanical strength, and maximum surface area for pollution performance.
• Heavy industrial zones with strain and dead‑end towers – Where airborne contaminants create severe pollution conditions, and maximum surface area is essential for pollution flashover prevention.
• Coastal and marine environments with extreme wind loads – Where heavy salt spray combines with extreme wind loads, requiring the highest mechanical capacity, maximum surface area, and maximum pollution performance.
• Long-span river crossings in contaminated areas – Where conductor weight and tension are maximised, combined with severe pollution challenges.
• Heavy icing zones with severe contamination – Where ice accretion adds significant weight and mechanical stress, requiring maximum mechanical rating and maximum surface area for pollution performance.
• Critical transmission corridors – Where system reliability is paramount, and maximum mechanical margins, pollution margins, and surface area are required.
• Dead‑end and heavy-angle towers – Where maximum mechanical capacity and heavy-duty hardware are required.

 

Its 160kN mechanical capacity makes it suitable for suspension, light‑tension, strain, and dead‑end applications, with maximum strength margin for long spans, angle towers, heavy icing, and extreme loading conditions. The largest-in-series 330mm diameter and 450mm creepage provide maximum pollution flashover performance.

 

Typical application scenarios include:

• 66 kV lines – Strain, dead‑end, and heavy-angle towers in severely polluted industrial and coastal areas requiring maximum mechanical strength and surface area.
• 110 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 infrastructure – Lines where system reliability is paramount and maximum performance margins are required.

 

The standard 20 ball‑and‑socket coupling ensures compatibility with existing heavy-duty 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 XWP6-160 Anti-Pollution Insulator Suspension  can be assembled in strings. Explore our full range of suspension insulators and transmission hardware for more options.

 

H2: XWP6-160 Anti-Pollution Insulator Suspension — Quality and Performance Advantages

The XWP6-160 Anti-Pollution Insulator Suspension  represents the ultimate combination of mechanical strength, pollution performance, and largest surface area in our anti-pollution series.

 

Key performance advantages include:

• 160kN mechanical rating – The highest in the anti-pollution series, providing 90kN (129%) more strength than 70kN anti-pollution insulators, 60kN (60%) more than 100kN models, and 40kN (33%) more than 120kN models.
• 330mm diameter – The largest diameter in the anti-pollution series, providing the greatest surface area for improved pollution performance and self‑cleaning.
• 170mm spacing – The tallest spacing in the anti-pollution series, providing enhanced mechanical stability and surface area.
• 450mm ultra-long creepage distance – 150mm (+50%) longer than standard 300mm designs, ensuring maximum pollution flashover performance.
• Size 20 coupling – Heavy-duty hardware accommodating the highest mechanical loads.
• 130kV lightning impulse withstand voltage – 10kV higher than 70kN–120kN anti-pollution models.
• 80kN routine proof test – The highest proof load in the series, demonstrating exceptional mechanical integrity.
• 10Nm impact strength – Maximum impact resistance, ensuring robustness under dynamic loading.
• 45kV wet withstand voltage – 3kV higher than 70kN anti-pollution models.

 

At 9.1kg, the XWP6-160 offers an excellent strength-to-surface-area ratio for a 160kN anti-pollution insulator — only 0.2kg heavier than the XWP2-160 (8.9kg) while delivering a 30mm larger diameter and 15mm larger spacing for significantly increased surface area and pollution 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 XWP6-160 requires minimal routine maintenance. Every unit undergoes 100% routine testing before dispatch, including:

• Visual and dimensional inspections.
• Routine proof test load verification (80 kN).
• Impact strength testing (10 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 XWP6-160 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: XWP6-160 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 66–110 kV applications with severe contamination and extreme mechanical demands where maximum surface area is essential. Our XWP6-160 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 transmission projects require the highest levels of mechanical strength, pollution performance, and surface area — where standard 70kN, 100kN, or even 120kN insulators may not provide adequate safety margins.

 

That is why the XWP6-160 Anti-Pollution Insulator Suspension  is specifically engineered with a 160kN mechanical rating — the highest in the anti-pollution series — combined with the largest-in-series 330mm diameter, the tallest 170mm spacing, an ultra-long 450mm creepage distance, and a heavy-duty size 20 coupling to deliver maximum surface area and performance in the most demanding 66–110 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 XWP6-160 Anti-Pollution Insulator Suspension  (brown or gray) is available with short lead times. Contact us today to discover how the XWP6-160 Anti-Pollution Insulator Suspension  can strengthen your grid reliability in the most demanding contaminated environments.

 

XWP2-160 vs XWP6-160 Comparison

Parameter	XWP2-160	XWP6-160	Advantage
M&E Strength	160 kN	160 kN	Identical
Diameter D	300 mm	330 mm	+30 mm (+10%)
Spacing H	155 mm	170 mm	+15 mm (+10%)
Creepage Distance	450 mm	450 mm	Identical
Coupling Size	20	20	Identical
Wet Withstand Voltage	45 kV	45 kV	Identical
Lightning Impulse	130 kV	130 kV	Identical
Impact Strength	10 Nm	10 Nm	Identical
Proof Test Load	80 kN	80 kN	Identical
Net Weight	8.9 kg	9.1 kg	+0.2 kg (minimal for +30mm diameter)
Key Advantage	High strength + compact	Maximum strength + largest surface area	Largest diameter & spacing for superior pollution performance

 

Anti-Pollution Series Comparison — Complete Overview

Parameter	XWP2-70	XWP3-70	XWP2-100	XWP3-100	XWP2-120	XWP3-120	XWP2-160	XWP6-160
M&E Strength	70	70	100	100	120	120	160	160
Diameter D	255	280	280	280	280	280	300	330
Spacing H	146	160	160	146	160	146	155	170
Creepage	400	450	450	450	450	450	450	450
Coupling	16	16	16	16	16	16	20	20
Lightning Impulse	120	120	120	120	120	120	130	130
Proof Test	35	35	50	50	60	60	80	80
Net Weight	5.9	6.7	8.5	7.9	8.5	8.3	8.9	9.1
Relative Strength	—	—	+43%	+43%	+71%	+71%	+129%	+129%
Key Advantage	Standard	Max creepage	High strength	High strength + light	Max strength	Max strength + compact	Ultimate strength	Ultimate strength + largest surface area
Best Application	Heavy industrial	Severe industrial	Severe + high load	High load + reduced loading	Max load + severe pollution	Max load + compact	66-110kV / max load	66-110kV / max load + max surface area