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Collapse <b>K series</b>: Protection against interferenceK series: Protection against interference
K.6: Precautions at crossings
K.7: Protection against acoustic shock
K.8: Separation in the soil between telecommunication cables and earthing system of power facilities
K.9: Protection of telecommunication staff and plant against a large earth potential due to a neighbouring electric traction line
K.10: Low frequency interference due to unbalance about earth of telecommunication equipment
K.11: Principles of protection against overvoltages and overcurrents
K.12: Characteristics of gas discharge tubes for the protection of telecommunications installations
K.13: Induced voltages in cables with plastic-insulated conductors
K.14: Provision of a metallic screen in plastic-sheathed cables
K.18: Calculation of voltage induced into telecommunication lines from radio station broadcasts and methods of reducing interference
K.19: Joint use of trenches and tunnels for telecommunication and power cables
K.20: Resistibility of telecommunication equipment installed in a telecommunication centre to overvoltages and overcurrents
K.21: Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents
K.23: Types of induced noise and description of noise voltage parameters for ISDN basic user networks
K.24: Method for measuring radio-frequency induced noise on telecommunications pairs
K.26: Protection of telecommunication lines against harmful effects from electric power and electrified railway lines
K.27: Bonding configurations and earthing inside a telecommunication building
K.28: Parameters of thyristor-based surge protective devices for the protection of telecommunication installations
K.29: Coordinated protection schemes for telecommunication cables below ground
K.34: Classification of electromagnetic environmental conditions for telecommunication equipment – Basic EMC Recommendation
K.35: Bonding configurations and earthing at remote electronic sites
K.36: Selection of protective devices
K.37: Low and high frequency electromagnetic compatibility (EMC) mitigation techniques for telecommunication installations and systems – Basic EMC Recommendation
K.38: Radiated emission test procedure for physically large systems
K.39: Risk assessment of damages to telecommunication sites due to lightning discharges
K.40: Protection against lightning electromagnetic impulses in telecommunication centres
K.42: Preparation of emission and immunity requirements for telecommunication equipment – General principles
Withdrawn: K.43: Immunity requirements for telecommunication network equipment
K.44: Resistibility tests for telecommunication equipment exposed to overvoltages and overcurrents – Basic Recommendation
K.45: Resistibility of telecommunication equipment installed in the access and trunk networks to overvoltages and overcurrents
K.46: Protection of telecommunication lines using metallic symmetric conductors against lightning-induced surges
K.47: Protection of telecommunication lines against direct lightning flashes
Withdrawn: K.48: EMC requirements for telecommunication equipment – Product family Recommendation
K.49: Test requirements and performance criteria for voice terminal telephones subject to disturbance from digital mobile telecommunications systems
K.50: Safe limits for operating voltages and currents of telecommunication systems powered over the network
K.51: Safety criteria for telecommunication equipment
K.52: Guidance on complying with limits for human exposure to electromagnetic fields
K.54: Conducted immunity test method and level at fundamental power frequencies
K.55: Overvoltage and overcurrent requirements for insulation displacement connectors (IDC) terminations
K.56: Protection of radio base stations against lightning discharges
K.57: Protection measures for radio base stations sited on power line towers
K.58: EMC, resistibility and safety requirements and guidance for determining responsibility under co-located information and communication technology installations
K.59: Electromagnetic compatibility, resistibility and safety requirements and procedures for connection to unbundled cables
K.60: Emission levels and test methods for wireline telecommunication networks to minimize electromagnetic disturbance of radio services
K.61: Guidance on measurement and numerical prediction of electromagnetic fields for compliance with human exposure limits for telecommunication installations
K.62: System level radiated emissions compliance using mathematical modelling
K.63: Maintaining the suitability of production telecommunications equipment to its intended electromagnetic environment
K.64: Safe working practices for outside equipment installed in particular environments
K.65: Overvoltage and overcurrent requirements for termination modules with contacts for test ports or surge protective devices
K.66: Protection of customer premises from overvoltages
K.67: Expected surges on telecommunications and signalling networks due to lightning
K.68: Operator responsibilities in the management of electromagnetic interference by power systems on telecommunication systems
K.69: Maintenance of protective measures
K.70: Mitigation techniques to limit human exposure to EMFs in the vicinity of radiocommunication stations
K.71: Protection of customer antenna installations
K.72: Protection of telecommunication lines using metallic conductors against lightning – Risk management
K.73: Shielding and bonding for cables between buildings
K.74: Electromagnetic compatibility, resistibility and safety requirements for home network devices
K.75: Classification of interface for application of standards on resistibility and safety of telecommunication equipment
K.76: Electromagnetic compatibility requirements for DC power ports of telecommunication network equipment in frequencies below 150 kHz
K.77: Characteristics of metal oxide varistors for the protection of telecommunication installations
K.78: High altitude electromagnetic pulse immunity guide for telecommunication centres
K.79: Electromagnetic characterization of the radiated environment in the 2.4 GHz ISM band
K.80: EMC requirements for telecommunication network equipment in the frequency range 1 GHz-40 GHz
K.81: High-power electromagnetic immunity guide for telecommunication systems
K.82: Characteristics and ratings of solid-state, self-restoring overcurrent protectors for the protection of telecommunications installations
K.83: Monitoring of electromagnetic field levels
K.84: Test methods and guide against information leaks through unintentional electromagnetic emissions
K.85: Requirements for the mitigation of lightning effects on home networks installed in customer premises
K.86: Method for measuring longitudinal conversion loss (9 kHz - 30 MHz)
K.87: Guide for the application of electromagnetic security requirements - Overview
Withdrawn: K.88: EMC requirements for next generation network equipment
K.89: Protection of persons inside a structure using telecommunication services provided by metallic conductors against lightning - Risk management
K.90: Evaluation techniques and working procedures for compliance with exposure limits of network operator personnel to power-frequency electromagnetic fields
K.91: Guidance for assessment, evaluation and monitoring of human exposure to radio frequency electromagnetic fields
K.92: Conducted and radiated electromagnetic environment in home networking
K.93: Immunity of home network devices to electromagnetic disturbances
K.94: Mutual disturbance test method for evaluating performance degradation of converged terminal devices
K.95: Surge parameters of isolating transformers used in telecommunication devices and equipment
K.96: Surge protective components: Overview of surge mitigation functions and technologies
K.97: Lightning protection of distributed base stations
K.98: Overvoltage protection guide for telecommunication equipment installed in customer premises
K.99: Surge protective component application guide - Gas discharge tubes
K.100: Measurement of radio frequency electromagnetic fields to determine compliance with human exposure limits when a base station is put into service
K.101: Shielding factors for lightning protection
K.102: Parameters of fixed-voltage thyristor overvoltage protector components used for the protection of telecommunication installations
K.103: Surge protective component application guide - Silicon PN junction components
K.104: Method for identifying the transfer potential of the earth potential rise from high or medium voltage networks to the earthing system or neutral of low voltage networks
K.105: Lightning protection of photovoltaic power supply systems feeding radio base stations
K.106: Techniques to mitigate interference between radio devices and cable or equipment connected to wired broadband networks and cable television networks
K.107: Method for determining the impedance to earth of earthing systems
K.108: Joint use of poles by telecommunication and solidly earthed power lines
K.109: Installation of telecommunication equipment on utility poles
K.110: Lightning protection of the dedicated transformer for radio base stations
K.111: Protection of surrounding structures of telecommunication towers against lightning
K.112: Lightning protection, earthing and bonding: Practical procedures for radio base stations
K.113: Generation of radiofrequency electromagnetic field level maps
K.114: Electromagnetic compatibility requirements and measurement methods for digital cellular mobile communication base station equipment
K.115: Mitigation methods against electromagnetic security threats
K.116: Electromagnetic compatibility requirements and test methods for radio telecommunication terminal equipment
K.117: Primary protector parameters for the surge protection of equipment Ethernet ports
K.118: Requirements for lightning protection of fibre to the distribution point equipment
K.119: Conformance assessment of radio base stations regarding lightning protection and earthing
K.120: Lightning protection and earthing of a miniature base station
K.121: Guidance on the environmental management for compliance with radio frequency EMF limits for radiocommunication base stations
K.122: Exposure levels in close proximity of radiocommunication antennas
K.123: Electromagnetic compatibility requirements for electrical equipment in telecommunication facilities
K.124: Overview of particle radiation effects on telecommunication systems
K.125: Dangerous effects and protective measures against electromagnetic disturbances when an Internet data centre is co-sited with a high-voltage substation
K.126: Surge protective component application guide - High frequency signal isolation transformers
K.127: Immunity requirements for telecommunication equipment in close proximity use of wireless devices
K.128: Surge protective component application guide - metal oxide varistor (MOV) components
K.129: Characteristics and ratings of silicon PN junction voltage clamping components used for the protection of telecommunication installations
K.130: Neutron irradiation test methods for telecommunication equipment
K.131: Design methodologies for telecommunication systems applying soft error measures
K.132: Electromagnetic compatibility requirements of electromagnetic disturbances from lighting equipment located in telecommunication facilities
K.133: Electromagnetic environment of body-worn equipment in the 2.4 GHz and 13.56 MHz industrial, scientific and medical band
K.134: Protection of small-size telecommunication installations with poor earthing conditions
K.135: Technical parameters for residual current operated protective devices with automatic reclosing feature for telecom applications
K.136: Electromagnetic compatibility requirements for radio telecommunication equipment
K.137: Electromagnetic compatibility requirements and measurement methods for wireline telecommunication network equipment
K.138: Quality estimation methods and application guidelines for mitigation measures based on particle radiation tests
K.139: Reliability requirements for telecommunication systems affected by particle radiation
K.140: Surge protective component application guide - Fuses
K.141: Electromagnetic compatibility requirements for information perception equipment
K.142: Lightning protection and earthing of video surveillance systems
K.143: Guidance on safety relating to the use of surge protective devices and surge protective components in telecommunication terminal equipment
K.144: Surge protective component application guide - Self-restoring thermally activated overcurrent protectors
K.145: Assessment and management of compliance with radio frequency electromagnetic field exposure limits for workers at radiocommunication sites and facilities
K.146: Interference management for telecommunication transmissions over copper lines for signals other than speech
K.147: Protection of digital ports connected to balanced pairs of conductors
K.148: Multiservice surge protective device application guide
K.149: Passive intermodulation test methods of array antenna systems in mobile communication systems
K.150: Information of semiconductor devices required for the design of telecommunication equipment applying soft error mitigation measures
K.151: Electrical safety and lightning protection of medium voltage input and up to ±400 VDC output power system in ICT data centres and telecommunication centres
K.152: Electromagnetic compatibility requirements for power equipment in telecommunication facilities
K.153: Guidance on determining the compliance boundaries (exclusion zones) of radio transmitter installations
K.154: Operating telecommunication facilities using lightning strikes data obtained from lightning location systems
Expand <b>K supplements</b>: Supplements to ITU-T K-series RecommendationsK supplements: Supplements to ITU-T K-series Recommendations