What is the current wiring regulations standard for electrical installation in the UK?

• A. BS 7671:2018+A2:2022
• B. IEC 60364
• C. NFPA 70
• D. BS 7671:1992

Answer: (A)

The question is asking which standard currently governs electrical installation wiring rules in the UK. In the UK, the official wiring regulations are set out in BS 7671, commonly known as the IET Wiring Regulations. The version in effect today is the 2018 edition with the 2022 amendment, referred to as BS 7671:2018 +A2:2022. This combination is the latest that contractors and inspectors follow for design, erection, testing, and verification of electrical installations.

Other standards listed aren’t the UK’s current wiring rules. IEC 60364 is an international standard that BS 7671 aligns with in many areas, but the UK uses its own national standard with the specific UK amendments. NFPA 70 is the US National Electrical Code, not used as the UK regulation. BS 7671:1992 is an older edition that has been superseded by the 2018 edition and its amendment.