CableCalc BS7671 is a cable evaluation program fully compliant with BS7671:2008 Requirements for Electrical Installations IEE Wiring Regulations 17th 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 to provide a intuitive user interface with a host of new features.
CableCalc BS7671 will calculate and check for voltage drop, disconnection time, fault current, earth fault data, overload and short circuit data in five easy steps producing detailed print-outs for each calculation.
All Levels of CableCalc BS7671 will perform both single and three-phase calculations. The phase colours default as Brown Black and Grey with Blue Neutral but may be customised to any set of colours

CableCalc BS7671 is available in four versions ranging from a simple calculation tool:
CableCalc BS7671 - Level 1 - For the electrician/engineer who requires quick calculation results with detailed print-outs
CableCalc BS7671 - Level 2 - For the contractor/engineer. Produces detailed calculation results and schedules which can be printed or exported as Adobe PDF files for electronic distribution. This version supports up to five distribution boards and includes all the features found in Level 1.
CableCalc BS7671 - Level 3 - For the professional designer/consultant who requires high quality designs and schedules. This version includes all of the features of levels 1 & 2, and in addition will produce up to 20 distribution boards and includes manufacturer-specific protective device data.
CableCalc BS7671 - Level 4 - The top Level of CableCalc BS7671, for the professional designer/consultant who requires high quality designs and schedules. This version includes all of the features of levels 1, 2 & 3, and in addition will produce an unlimited number of distribution boards and includes manufacturer-specific protective device data.
CableCalc BS7671 can produce many different reports ranging from cable calculation details to detailed distribution board charts.