Summary

This Recommendation specifies resistibility requirements and test procedures for telecommunication equipment installed between a Telecommunication Centre and Customer premises building.

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.