Summary

This Recommendation specifies resistibility requirements and test procedures for telecommunication equipment which is installed in a Telecommunication Centre.

Overvoltages or overcurrents covered by this Recommendation include surges due to lightning on or near the line plant, short‑term induction of alternating voltages from adjacent power lines or railway systems, earth potential rise due to power faults, direct contacts between telecommunication lines and power lines and electrostatic discharges.