ITU-T K.20-2008 PDF

Scope: This Recommendation specifies resistibility requirements and test procedures for equipment installed in a Telecommunication Centre where the earthing, bonding and cabling between equipment/racks is in accordance with ITU-T Recommendation K.27. This Recommendation applies to both external and internal ports. Basic ITU-T Recommendation K.44 (test methods and test circuits) is an integral part of this Recommendation. It should be read in conjunction with ITU-T Recommendations K.11, K.39 and K.46. This recommendation applies to all telecommunication equipment, whether network operator or customer owned, including telephony, routers and modems etc. It does not apply to PCs and printers etc.

ITU-T K.20-2008 Referenced Document

ITU-T K.27-1996 Bonding Configurations and Earthing Inside a Telecommunication Building - Protection Against Interference Study Group 5; 26 pp
ITU-T K.39-1996 Risk Assessment of Damages to Telecommunication Sites Due to Lighting Discharges - Series K: Protection Against Interference Study Group 5; 18 pp
ITU-T K.44-2003 Resistibility tests for telecommunication equipment exposed to overvoltages and overcurrents ?Basic Recommendation SERIES K: PROTECTION AGAINST INTERFERENCE Study Group 5
ITU-T K.46-2003 Protection of telecommunication lines using metallic symmetric conductors against lightning-induced surges SERIES K: PROTECTION AGAINST INTERFERENCE Study Group 5

2008 ITU-T K.20-2008 Resistibility of telecommunication equipment installed in a telecommunications centre to overvoltages and overcurrents Study Group 5