Engineering Resources
Cable Selection Tools
Professional engineering calculators and reference charts for cable sizing, voltage drop analysis, ampacity verification, and international standard cross-referencing. Built for engineers, procurement managers, and EPC contractors.
Cable Sizing Calculator
Determine the correct cable cross-section based on load current, installation method, ambient temperature, and derating factors per IEC 60364 and GB 50217.
Wire Gauge (AWG/mm²) Chart
Complete cross-reference table converting AWG, kcmil, mm², and metric sizes with corresponding resistance, ampacity, and diameter values for Cu and Al conductors.
Voltage Drop Calculator
Calculate voltage drop percentage for single-phase and three-phase circuits. Verify compliance with IEC and NEC limits for LV distribution and motor feeder circuits.
Ampacity Tables
Current-carrying capacity tables for XLPE, PVC, and rubber-insulated cables across all installation methods -- direct burial, conduit, tray, and free air per IEC 60364-5-52.
Color Code Charts
Conductor color coding reference for IEC 60446, NEC, AS/NZS, and Chinese GB standards. Covers phase, neutral, and protective earth identification across regions.
Cross-Reference Tool
Look up equivalent cable designations across IEC, GB, BS, VDE, NFC, and UL standards. Find the Chinese GB equivalent for any international cable type code.
Weight Calculator
Estimate cable reel weight and total shipping weight based on cable type, cross-section, number of cores, and drum length. Useful for logistics and crane load planning.
Conduit Fill Calculator
Calculate the fill percentage for cables inside conduit or trunking. Verify compliance with NEC Chapter 9 and IEC installation rules for maximum conduit utilization.
Need Custom Support?
Can't find the calculation you need?
Our technical engineers can assist with custom cable sizing, project-specific derating, and full cable schedule preparation for EPC and utility projects.
Always Up to Date
All calculators reference current IEC, GB, NEC, and BS standard editions. Updated when standards revise.
Engineering Verified
Calculation methods reviewed by Jinda's R&D and technical engineering team with 38+ years of industry experience.
Export Results
Save and export calculation results as PDF for inclusion in project documentation, BOQ submissions, and technical proposals.
