About this app
CableCalc BS7671 is a cable evaluation program fully compliant with BS7671:2018(2024) Requirements for Electrical Installations IEE Wiring Regulations 18th Edition based on IEC/CENELEC Standards. Following the success of previous releases of CableCalc BS7671 over the past 20 years, CableCalc BS7671 has been re-designed for the iPad to provide a intuitive user interface with all the comprehensive features of the Windows software. CableCalc BS7671 will calculate and check for voltage drop, disconnection time, fault current, earth fault data, overload and short circuit data and will produce a detailed print-out for each calculation in PDF format which can be printed to an AirPort compatible printer or emailed. CableCalc BS7671 will perform both single and three-phase calculations for radial, ring and sub main circuits. CableCalc includes a full database of copper cables and generic protective devices and allows you to complete all information relevant to the calculation including any applicable correction factors for temperature, grouping etc. Energy let through values can be entered and calculations can be saved to load back in later. Cable types include: 70°C PVC Armoured & Non Armoured multicore & singles, Twin & earth, 6491x & 6181y Singles 90°C LSF Armoured singles & multicore, 6491b & 6181 Singles, Twin & earth, Flat 3 core & earth 90°C XLPE Armoured & Non Armoured singles & Multicore, 6491b & 6181xy singles FP100, FP200, FP200 Flex, FP400 and Fireforce PH30 Fire rated MICC PVC Sheath/Bare, Heavy & Light Duty CY, SY, YY 70°C PVC Flexible cable, 105°C Tri-Rated singles 60 & 90°C Rubber insulated flexible cable CableCalc is available in the english language only and all cable sizes are metric (mm). BS7671 is the standard for wiring regulations in the United Kingdom.
Latest release
What’s New
Maintenance update.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Sep 4, 2026 · 12:58 AM $149.99
Screenshots
