Blog

Discover the key differences between surge arresters and lightning arresters. Learn how each device protects power systems, where they’re used, and how to select the right devices for your setups.

Wondering if surge protection devices are really necessary? This in-depth guide explains why SPDs are essential, how they work, and what type you need—covering lightning rods, MOVs, grounding, bonding, and more. Protect your power, data, and equipment effectively.

Learn how built-in resistors improve signal surge protection device. We'll cover their function in safeguarding Ethernet and RS485 data lines from transients.

This article explains methods for testing surge protection devices, including multimeter procedures, SPD test equipment, applicable standards (IEC 61643, UL 1449), and maintenance guidelines.

This technical guide to SPD maintenance covers everything from lifespan and inspection frequency to performance testing and replacement criteria—ideal for engineers and facility managers.

Comprehensive guide to grounding systems and equipotential bonding, including TN-C, TT, and IT earthing types, bonding conductors, and electrical safety standards.

Explore how Uc (MCOV) values for surge protective devices vary across regions like Europe, North America, and China, and how local power systems and standards impact SPD selection.

Single-phase power requires careful surge protection; here’s everything you need to know to protect your system effectively.

Lightning protection zones (LPZs) are areas that within a building or structure facing varied risk levels of lightning strike and transient overvoltages.

Comprehensive guide to 3-phase surge protection: its function, critical role in electrical systems, and selecting appropriate SPDs for optimal system safety.

Replacing a fuse with higher amp rating creates fire hazards and equipment damage. Learn proper fuse selection to protect your electrical system and prevent failures.

Install Type 1, 2 & 3 SPDs with proper spacing for cascaded protection. Follow IEC 61643-11 standards to protect industrial systems from surge damage.