ACC Insulations provides five validated engineering tools to help electrical engineers select the correct insulation grade, verify safety margins, and estimate material quantities for transformers, motors, switchgear, and industrial equipment. All tools are based on IEC and IS standard parameters.
Material Finder
Select the right insulation grade for your application — transformer, motor, switchgear, railway traction, and more.
Thickness Calculator
Compute the minimum insulation barrier thickness for any voltage level and material using the dielectric integrity formula.
Weight Estimator
Estimate the mass of composite insulation sheets and laminates based on custom dimensions and material density profiles.
Thermal Auditor
Cross-verify your operating temperature against IEC 60085 insulation class limits — Class Y (90°C) through Class R (220°C).
Unit Converter
Instant engineering unit conversions — kV/mm to V/mil, Celsius to Fahrenheit, mm to inches, and MPa to PSI.
Material Selection Analysis
Technical Reference
Material mapping is based on IEC 60641-3 for cellulosic pressboards and NEMA LI-1 for industrial thermoset laminates.
Dielectric Clearance Calculator
Core Formula: Dielectric Integrity
Tmin = (Vsyst / Edielectric) ×
SF
T = Minimum thickness (mm) •
V = System voltage (kV) •
E = Dielectric strength (kV/mm) •
SF = Safety factor
Mass & Volume Estimator
Core Formula: Volumetric Mass
M = (L × W × T × ρ) / 106
Computes theoretical weight based on specific gravity profiles of high-density
composites.
Thermal Safety Auditor
Core Reference: Thermal Ageing (IEC 60085)
Continuous operation above the insulation class limit results in logarithmic reduction of dielectric life per the Arrhenius Law. Upgrade to the next thermal class if the margin is negative.
