Power-line Surge voltages and Surge Currents – Causes and Effects
I. Causes Surge voltages and surge currents occurring in low-voltage ac power circuits can be caused by: Lightning surges. Lightning surges are the result of a direct flash to the …
IEC 62305 – Protection against lightning
Lightning is a very high-energy phenomenon. Lightning protection is oftentimes taken for granted as the probability of a lightning strike to a structure is low, and damage to properties and …
Lightning Protection – Rolling Sphere Method Accordning to Philippine Electrical Code 2017 Edition
Rolling Sphere Method The Rolling Sphere Method is a popular and acceptable method of implementing lighting protection on structures. In the Philippine Electrical Code, the rolling sphere method is mentioned …
Lightning protection
Lightning is a high-voltage discharge (usually negative) within clouds (intra-), to each other (inter-), or to the earth. The cloud-to-ground (CG) flash is the one we are usually concerned with …
Lightning Damage to Services
In this article, I have listed the possible damage that lightning strike could impart into structures. In addition to this, lightning could likewise disrupt services. IEC 62305-1 provides a list …
Lightning Damage to Structures
IEC 62305 – Protection against lightning Lightning is a very high-energy phenomenon. Lightning protection is often times taken for granted as the probability of a lightning strike to a structure …