Surge Protection Devices and Arc Fault Detection Devices: What UK Electricians Need to Know Under BS 7671:2022
Amendment 2 to the 18th Edition Wiring Regulations (BS 7671:2022) made surge protection devices (SPDs) and arc fault detection devices (AFDDs) expected — and in some cases mandatory — on new installations. This trade guide covers what each device does, when it is required, and what to specify for consumer unit work in domestic properties.