For most UK electricians and contractors, a —especially one with a bend factor slider—is sufficient for 90% of jobs.
1. Capture Cable Data. List each cable diameter and the quantity per size. The calculator sums every entry so you can mix feeders, Cable Duct Size Calculator - myElectrical.com cable duct size calculator uk
Let’s look at a practical UK example.
: No single perfect free tool exists for UK electricians. The IET’s On-Site Guide (Appendix E) remains the most trusted manual method. For most UK electricians and contractors, a —especially
Advanced calculators incorporate a pulling tension check based on cable mass, coefficient of friction (0.3 – 0.5 typical for PVC duct), and bend radius. For most UK electricians and contractors