What is Surge Protection?

Recently introduced standards put equal importance on protecting the electrical installation and electrical equipment as to the building itself.

Surge protective devices (SPD) assist in the protection of valuable electrical and electronic equipment against transients, originating from lightning and also from switching sources. These transients can cause damage ranging from the premature ageing of equipment, logic failures and down time, to the complete destruction of equipment within the entire electrical installation. Products such as LCD screens, data servers and industrial equipment such PLC’s are critical to business activity.

The consequential losses suffered during such events i.e. downtime and lost production, can be very high.

We offer a wealth of experience in helping to decide which product best suits your needs.


BSEN62305-4 1st Sept 2008 & 17th Edition Wiring Regs Amendments 1st Jan 2012.

This new standard replaced BS6651 on the above date, it is now mandatory to fit a lightning current arrester on main incoming panels which are situated in buildings with external lightning conductors or fed by an overhead line.


Commercial & Domestic to Protect Main Panels or Sub-Distribution Boards feeding external circuits such as car park lighting, CCTV etc, and Solar PV on both the AC & DC side of the inverters are some applications.