Insulators are vital components of all electrical systems. NEETRAC has the equipment and expertise to evaluate the electrical and mechanical properties of insulators to ensure proper system performance. Insulators are evaluated with special tests designed to simulate or accelerate field conditions. NEETRAC can perform an array of electrical and mechanical tests on ceramic and polymer insulators.

Electrical Tests

• 60Hz wet/dry flashover
• 60Hz wet/dry withstand
• Impulse withstand/critical flashover
• Steep front impulse
• Radio influence voltage (RIV)
• Partial discharge (electrical and visual)
• Puncture
• 60Hz watts loss measurements on polymers/coating/contaminated surfaces/salt/fog/wetness

Mechanical Tests

• Tensile strength
• Impact strength
• Cantilever strength
• Torsional strength
• Compression strength
• Combined mechanical and electrical strength
• Porosity
• Thermal cycling
• Galvanizing thickness
• UV aging