Aerodynamic Toughened Glass Suspension Insulator XYAY Series

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Product Overview

An aerodynamic profile toughened glass disc for transmission line suspension strings, tested to IEC 60383. The shed is shaped so wind carries dust off the surface instead of letting it settle, which is why this profile is specified in desert and heavily polluted corridors. Rated mechanical failing load is 120 kN, creepage is 365 mm, and a disc weighs about 6 kg.

• IEC 60383

Why Buyers Choose This Part

• Aerodynamic shed lets wind self-clean the surface between washes
• 120 kN rated mechanical failing load for long-span suspension strings
• Toughened glass shatters visibly when punctured so faulty discs are found from the ground
• 365 mm creepage with 130 kV power frequency puncture voltage

Where It Is Used

• Desert and semi-arid transmission corridors with wind-blown dust
• Coastal lines where salt deposits build between rain events
• Suspension strings on lines where helicopter inspection is the main survey method
• Retrofit of porcelain strings that need fewer wash cycles

Who It Suits

• Transmission line contractors building in polluted or arid regions
• Utility line engineering teams specifying string hardware
• Distributors supplying overhead line construction projects

What Goes Wrong Without The Right Part

• Pollution flashover on strings that cannot be washed often enough
• Defective discs that cannot be spotted during a ground or aerial patrol
• Strings that need too many units because the disc rating is too low
• Uncertainty about test evidence when a project specifies IEC 60383

How It Is Built

• Specification and tests in accordance with IEC 60383
• 120 kN rated mechanical failing load
• 365 mm nominal creepage distance
• 50 kV dry and 40 kV wet power frequency withstand voltage
• 130 kV power frequency puncture voltage
• 6 kg net weight per disc

Published Figures For This Product

Every value below comes from the manufacturer data for this item. Figures not listed are confirmed against the drawing before an order is placed.

Rated Mechanical Failing Load	120 kN
Nominal Creepage Distance	365 mm
Power Frequency Puncture Voltage	130 kV
Net Weight Per Disc	6 kg
Power Frequency Withstand Voltage Wet	40 kV
Power Frequency Withstand Voltage Dry	50 kV
Puncture Voltage	130 kV
Standard	IEC60383

Materials

• Toughened glass dielectric
• Galvanised cap and pin fittings
• Portland cement bonding

Process

• Glass pressing
• Thermal toughening
• Cementing of cap and pin
• Galvanising
• Routine electrical and mechanical test

Testing

• Routine mechanical proof loading of every disc
• Power frequency puncture test to the 130 kV figure
• Visual check of the glass for inclusions before cementing

Certification

• Tested in accordance with IEC 60383
• ISO 9001 quality management system

Customisation Options

• Ball and socket coupling sizes to suit your string hardware
• Alternative failing load ratings in the XYAY series
• Project marking on the cap under OEM arrangements

How It Compares

Standard profile glass disc	The aerodynamic shed sheds wind-blown dust instead of collecting it, so wash intervals stretch on dusty lines.
Porcelain disc insulator	A punctured glass disc shatters and is visible from the ground, while a punctured porcelain disc often looks intact and has to be found by instrument.

Before You Order And After It Arrives

• Check the ball and socket size against your existing string hardware before ordering
• Fit split pins fully home on every coupling
• Do not lift a string by a single disc during stringing
• Record the disc rating used on each span for future maintenance

Aerodynamic Toughened Glass Suspension Insulator XYAY Series Questions

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Related Cases Guides And Applications

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Quote For Aerodynamic Toughened Glass Suspension Insulator XYAY Series

Send the quantity and any drawing you have. Enquiries are answered within 24 hours, and we produce to customer drawings and samples.