Author name: Thor

To decide what size MCB for SPD protection to use, start with the SPD manufacturer’s coordination table: select the listed […]

EV charger surge protection: what IEC 60364 asks for, how exposure decides Type 1+2 or Type 2, and why the SPD needs its own bonding connection.

The types of earthing systems: IEC 60364’s three families and five arrangements, TN-S, TN-C, TN-C-S, TT and IT, and how each constrains SPD connection.

Compare the top 10 SPD manufacturers by product scope, standards and OEM options, and check any supplier’s IEC 61643 claims before you buy.

Is surge protection necessary? See how IEC 60364 and the applicable national standard determine when an SPD is required and when omission is permitted.

A TVS diode is the fast clamping stage of an SPD, not the whole device. See how a published signal SPD circuit stages its protection.

Surge protection for LED street lights, from an SPD maker: why drivers fail, how to read Uc, In, Imax and Up, and where the device goes on the pole.

Lightning protection system design to IEC 62305: risk assessment, protection level, rolling sphere radii, down conductors and where SPDs belong.