The ITU-T held a technical session on home networks in 2011. The sessions on Damage to equipment in Japan and the US, Model testing and simulations and Need for special requirements documented field results, gave system analysis and test level proposals.
In 2016, in terms of single port 1.2/50 withstand voltages, levels of 2.5 kV (basic) and 6 kV (enhanced) are what many manufactures are using. How these levels are applied and their current capability is something that needs to be harmonised and standardised.
This document analyses the most likely surge events that impose the highest levels of Ethernet port stress and from that analysis defines recommended surge test circuits for a single twisted pair and the power feeding pairs.