Electrical Cable Engineering Knowledge Base
Technical guidance, cable calculation notes, software documentation, standards references, and practical engineering articles grouped by topic.
Browse by Topic
Choose a topic area, then move into detailed articles and worked examples.
Cable Design
Construction, insulation, standards, dielectric losses and cable performance.
Cable Installation
Routing, ducts, supports, burial conditions and site practice.
Cable Sizing
Capacity, voltage drop, derating, methods, standards and worked examples.
Software Help
myCableEngineering software guidance for projects, cables, reports and common tasks.
Start Here
Useful starting points for software guidance, cable sizing standards, and a practical worked calculation.
Software guide
myCableEngineering Software Basics
Get oriented with the dashboard, projects, cables, reports and tutorial resources.
Standards reference
Cable Sizing Standards: BS 7671, ERA 69-30 and IEC 60502
Review the standards framework used for cable sizing and current-carrying capacity.
Worked example
BS 7671 Voltage Drop Worked Example
Follow a practical voltage-drop calculation with equations, substitutions and result.
Technical Articles
AC and DC Cable Performance Worked Examples
Textbook-style AC and DC cable performance worked examples with equations for temperature, resistance, voltage drop, power loss and indicative life.
Updated June 1, 2026
Cable Fault Calculation Worked Example
Cable fault calculation worked example using complex impedance for phase and earth fault currents.
Updated June 4, 2026
BS 7671 Voltage Drop Worked Example
BS 7671 voltage drop worked example with equations, substitutions and result for a 50 mm² copper cable.
Updated June 4, 2026
Standard Cable Sizes to IEC 60228
Reference table of standard metric conductor and cable sizes defined by IEC 60228, from 0.5 mm² to 1000 mm².
Updated May 27, 2026
Metric to AWG Cable Size Conversion Table
Metric to AWG and MCM conductor size conversion table with circular mils, stranding and approximate overall diameter.
Updated May 27, 2026
Photovoltaic (PV) Design: Array Voltage, Current and Grid Connection
PV array design overview covering array voltage and current, design correction factors, cable checks and UK G98/G99 grid connection requirements.
Updated June 5, 2026
Electrical Resistance: Formula, Temperature Effects and Cable Use
Electrical resistance explained, including resistance formula, temperature coefficient, worked example and use in cable impedance, voltage drop and power loss.
Updated May 27, 2026
Cable Reactance: Inductive and Capacitive Reactance
Cable reactance explained, including inductive and capacitive reactance formulae and their use in impedance, voltage drop and fault-current calculations.
Updated May 27, 2026
Electrical Resistivity: Definition, Formula and Cable Applications
Electrical resistivity explained, including the resistivity formula, factors affecting resistivity and its role in conductor resistance and cable calculations.
Updated May 27, 2026
Cable Inductance: Self, Mutual and BICC Handbook Formulae
Cable inductance explained, including self and mutual inductance, single-phase and three-phase formulae, and BICC Electrical Cables Handbook K values.
Updated May 27, 2026