The standards relating to the requirements for surge protection include the following:-
BS 7671 Requirements for Electrical Installations
BS EN 62305 Protection against lightning
Control of Major Accident Hazards (COMAH) Competent Authority – Inspection of Electrical, Control and Instrumentation Systems at COMAH Establishments (Operational Delivery Guide)
HSE Operational Guidance (OG) Layout – Appendix 1: Process for the management of ignition by lightning
IEC/BS EN 61643 series (conformity requirements for surge protection devices)
JSP 482 MOD Explosives Regulations – Chapter 8
NFPA 780 Standard for the Installation of Lightning Protection Systems