For electrical engineers, utilities, and professionals working with high-voltage power systems, the correct application of surge arresters is not just a matter of efficiency—it is a critical safety concern. Surge arresters protect expensive equipment, from transformers to transmission lines, from the destructive forces of lightning strikes and switching surges. The authoritative guide for this task is the international standard.
: For specifying and procuring protection equipment. iec 600995 pdf link
The most important updates included:
Covers gapless metal-oxide arresters, internally gapped designs (≤ 52 kV), and Externally Gapped Line Arresters (EGLA) . Selection Checklist For electrical engineers
: By guiding the proper selection and application of surge arresters, the standard contributes to the overall reliability and stability of power systems. from transformers to transmission lines