Convert Old Zs Values to 18th Edition Zs Values
Convert Zs values from a previous version of BS 7671 to BS 7671 18th edition 230v Cmin values.
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Max Zs Values 18th Edition BS 7671 A4:2026
Maximum earth fault loop impedance (Zs) values to 18th edition amendment 4 2026 of the IET wiring regulations. 100% and 80% adjusted values of Zs.
