BS 7671 Amendment 4
BS 7671 Amendment 4 draft is open for public comment, if you would like to have your say then now is your chance. Deadline: 3rd November 2024.
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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.
