Information
Definition
Surge protection reduces the risk of damage from transient overvoltages caused by lightning, switching events or network disturbances. It is normally assessed during product selection, circuit design, installation verification and maintenance of EV charging equipment.
Why it matters
It can protect EV charging equipment and connected systems, particularly where chargers are installed outdoors or in exposed electrical environments. For UK users, it supports safer specification decisions and reduces the risk of misunderstanding how a charger should be protected or installed.
References
Standards and regulations
BS 7671
BS 7671 is the UK national standard for electrical installations, covering the design, erection, inspection, testing and verification of low-voltage electrical systems. Section 722 contains specific requirements for supplies to electric vehicles.