Amendment 4 Comes Into Force on 15 October 2026: What Changes for Electricians
On 15 October 2026 the previous BS 7671 is withdrawn and Amendment 4 is the only current version. What changes on the EICR, EIC and Minor Works, quoted from the book.
BS 7671 & Regulations
Wiring standards, amendments, compliance and regulatory updates
Can you record 16 kA for prospective fault current without measuring it?
Can you record 16 kA for prospective fault current without measuring it? Sometimes. Appendix 14 of BS 7671 says that
How do you work out maximum demand for a domestic installation?
How do you work out maximum demand for a domestic installation? You determine it, and you are permitted to reduce
Can an oven be run from a fused spur on a ring final circuit?
Can an oven be run from a fused spur on a ring final circuit? Usually not. BS 7671 Appendix 15
BS 7671 Amendment 4 in iCertifi 12.12.50 | EICR App
12.12.50·Now availableon the App Store The wiring regs changed. iCertifi is ready. Full support for BS 7671:2018+A4:2026 — Amendment 4
R1+R2 Testing on Ring Final Circuits | BS 7671 Method
R1+R2 Testing on Ring Final Circuits: The BS 7671 Method Explained BS 7671 Amendment 4 update. The Orange Book (BS
Insulation Resistance Testing: BS 7671 Reg 643.3 Guide
Insulation Resistance Testing Under BS 7671: The Complete Guide BS 7671 Amendment 4 update. The Orange Book (BS 7671:2018+A4:2026) was
EICR Coding Explained: C1, C2, C3 and FI (BS 7671)
What C1, C2, C3 and FI actually mean on an EICR, when each code applies under BS 7671, and how to record observations so the report stands up to scrutiny.
Zs Testing Explained: Max Zs Values BS 7671 Table 41.3 | iCertifi
Zs Testing Explained - Maximum Zs Values for MCBs, RCDs and RCBOs (BS 7671) BS 7671 Amendment 4 update. The
BS 7671 Amendment 4 (2026) – What Electrical Contractors Need to Know | iCertifi
BS 7671 Amendment 4 (2026) - What Electrical Contractors Need to Know Another amendment, another book to buy. The Orange