Cable Sizing Software for Electrical Engineers
Size LV to 33 kV power cables with auditable current capacity, voltage drop and fault calculations based on recognised engineering standards.
BS 7671
Cable-sizing calculations for installations within the supported BS 7671 scope.
ERA 69-30
Current capacity methods for applicable UK distribution cable arrangements.
IEC 60502
Generic power-cable data and current capacity methods for HV cables.
LV to 33 kV
Project-based cable selection and calculation across the supported voltage range.
Size and manage power cables in one workflow
myCableEngineering brings project data, cable selection, calculations and reports together in a web-based application.
Engineers can test installation arrangements, review the supporting calculation results and retain the design within the project for later updates.
Cable-sizing capabilities
Use the application for repeatable engineering work rather than an isolated calculation.
Current capacity
Determine current capacity using the supported BS 7671, ERA 69-30 or IEC 60502 methods, or adopt a pre-calculated capacity.
Voltage drop
Calculate voltage drop using cable data and conductor operating temperature within the supported application workflow.
Fault rating
Review short-circuit and earth-fault ratings and cable withstand using the supported IEC 60909 calculation approach.
Cable types
Choose from generic IEC 60502 cable data or supported manufacturer-specific cable types from low voltage to 33 kV.
Project management
Organise cables by project, retain design inputs and results, and return to review or update the work later.
Engineering reports
Produce calculation reports, cable schedules, material take-offs and project delivery information for review.
From project data to professional reports
Projects
Create the project and retain the design context.
Cables
Enter installation data and select cable types.
Calculations
Review capacity, voltage drop and fault results.
Reports
Prepare auditable information for clients and project teams.
Supported standards and calculation scope
Support for BS 7671, ERA 69-30 and IEC 60502 cable-sizing calculations, with fault calculations based on IEC 60909.
For technical background, see the cable-sizing standards guide, the BS 7671 voltage-drop worked example and the wider cable-sizing knowledge base.
Detailed engineering calculations
Proprietary interpolation of intermediate derating factors, avoiding unnecessary rounding to the next tabulated value.
Impedance calculated using cable construction, conductor temperature, electrical properties and installation arrangement.
Calculations performed at the selected system frequency, including 50, 60, 120 and 400 Hz.
Temperature-dependent impedance used within voltage-drop calculations.
Keep the calculation trail with the project
Store cable information and supporting calculations together, then produce clear outputs for design review and project delivery.
Available outputs include calculation reports, cable schedules, material take-offs, and final project delivery reports.
From a one-off calculation to a complete project workflow
Unlike a typical standalone cable calculator, myCableEngineering keeps the calculation within the wider engineering project.
TYPICAL STANDALONE TOOLS
One-off cable calculator
- Useful for a quick isolated check
- Limited project context
- Results may need to be transferred elsewhere
- Usually focused on one calculation at a time
WITH MYCABLEENGINEERING
Complete cable-design workflow
- Project-based cable management
- Capacity, voltage-drop and fault checks
- Inputs and supporting results retained
- Reports and schedules for engineering delivery
Start free, then choose the plan that fits
Evaluate the application with Free or use Pro for regular project work and controlled pay-as-you-go usage.
Free
£0 / month
- 30 credits included each month
- No credit card required
- No pay-as-you-go charges
- For evaluation and light cable-sizing work
Pro
£10 / month
- 60 credits included each month
- Then £0.15 per additional credit
- Maximum budget control
- For regular project work
Cable sizing software questions
Is myCableEngineering free to try?
Yes. The Free plan includes 30 credits each month, requires no credit card and has no pay-as-you-go charges. In-app restrictions apply.
Which cable-sizing standards are supported?
myCableEngineering supports BS 7671, ERA 69-30 and IEC 60502 calculation methods, with fault calculations besed on IEC 60909.
What voltage range does the software cover?
myCableEngineering supports cable design from low voltage up to 33 kV.
Can I produce engineering reports?
The application supports calculation reports, cable schedules, material take-offs and project delivery reports.
Does it work on different devices?
The web-based application is designed for use on computers, tablets and smartphones.
How is this different from a simple calculator?
It keeps cable data, calculation results and reports together within projects so the design can be reviewed and updated later.
Start sizing cables in your first project
Create a free account and evaluate the cable-sizing workflow without entering card details.
Start Free