Lightning Protection System Design: IEC 62305 in 5 Steps
Lightning protection system design to IEC 62305: risk assessment, protection level, rolling sphere radii, down conductors and where SPDs belong.
SPD Thermal Stability: Safe Failure Explained
SPD thermal stability explained: what a thermal test checks, how thermal overload protection works, and why a disconnected SPD must be replaced.
Thor Electric at Expo Peru Industrial 2026: Show Recap
Expo Peru Industrial 2026 is over. Three days at booth E43 in Lima, the SPD questions Peruvian engineers actually asked, and the models they picked up.
How to Test a Surge Protection Device (and Why a Multimeter Isn’t Enough)
Learn how to test a surge protection device, what a multimeter actually confirms, the insulation-test mistake most guides get wrong, and when to replace.
IEC 61643 Explained: Which Part Applies to Your SPD
IEC 61643 is a family, not a single standard. Find out which part covers AC, DC, PV and signal SPDs, and what the 2025 edition of Part 11 changed.
SPD parameters explained: how to read a surge protection device datasheet
Most SPD datasheets lead with the biggest number on the page, and for a Type 2 device that number is
Verify a Surge Protection Device Certificate Before Buying
Verify a surge protection device certificate against its model, ratings, test report and issuing database before placing an order.
Lightning Protection System: From Air Terminals to SPDs
How a lightning protection system works end to end: IEC 62305 zones, air terminals, earthing, and the SPDs that limit surges reaching your equipment.