Zs Calculator – BS 7671 Maximum Zs Checker
More Free Tools For Electricians
Also from iCertifi: work out PAT testing retest intervals using the IET Code of Practice 5th Edition risk-based approach.
The full range of BS 7671 electrical certificates. EIC, EICR and Minor Works, with the calculators built in – Zs verification, R1+R2, PFC and cable sizing.