CENELEC EN 60794-5 Optical fibre cables - Part 5: Sectional specification - Microduct cabling for installation by blowing
Список продуктов
Данный раздел/документ содержится в продуктах:
Данный раздел/документ содержится в продуктах:
- Техэксперт: Машиностроительный комплекс
- Картотека зарубежных и международных стандартов
- JSA JIS C 8105-1 Luminaires - Part 1: General requirements for safety
- JSA JIS C 8122 Bayonet lampholders
- JSA JIS C 7551-1 Incandescent lamps - Safety specifications - Part 1: Tungsten filament lamps for domestic and similar general lighting purposes
- JSA JIS C 7550 AMD 1 Photobiological safety of lamps and lamp systems (Amendment 1)
- JSA JIS C 6802 Safety of laser products
- JSA JIS C 1010-2-33 Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-33: Particular requirements for hand-held multi meters and other meters, for domestic and professional use, capable of measuring mains voltage
- JSA JIS C 9335-2-89 Household and similar electrical appliances - Safety - Part 2-89: Particular requirements for commercial refrigerating appliances with an incorporated or remote refrigerant condensing unit or compressor
- IEC 60068-2-75 Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests - Edition 2.0
- BSI BS EN 62271-202 High-voltage switchgear and controlgear Part 202: High voltage/low-voltage prefabricated substation - CORR: October 31, 2014
- IEC TR 62271-208 High-voltage switchgear and controlgear – Part 208: Methods to quantify the steady state, power-frequency electromagnetic fields generated by HV switchgear assemblies and HV/LV prefabricated substations - Edition 1.0
- IEC 62271-200 CORR 1 High-voltage switchgear and controlgear – Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV - Edition 2.0
- IEC TR 62271-208 High-voltage switchgear and controlgear – Part 208: Methods to quantify the steady state, power-frequency electromagnetic fields generated by HV switchgear assemblies and HV/LV prefabricated substations - Edition 1.0
- BSI BS EN 62271-202 High-voltage switchgear and controlgear Part 202: High voltage/low-voltage prefabricated substation - CORR: October 31, 2014
- IEC 60068-2-75 Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests - Edition 2.0
- JSA JIS C 9335-2-89 Household and similar electrical appliances - Safety - Part 2-89: Particular requirements for commercial refrigerating appliances with an incorporated or remote refrigerant condensing unit or compressor
- JSA JIS C 1010-2-33 Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-33: Particular requirements for hand-held multi meters and other meters, for domestic and professional use, capable of measuring mains voltage
- JSA JIS C 6802 Safety of laser products
- JSA JIS C 7550 AMD 1 Photobiological safety of lamps and lamp systems (Amendment 1)
- JSA JIS C 7551-1 Incandescent lamps - Safety specifications - Part 1: Tungsten filament lamps for domestic and similar general lighting purposes
- JSA JIS C 8122 Bayonet lampholders
- 13
- JSA JIS C 8105-1 Luminaires - Part 1: General requirements for safety
- JSA JIS C 8122 Bayonet lampholders
- JSA JIS C 7551-1 Incandescent lamps - Safety specifications - Part 1: Tungsten filament lamps for domestic and similar general lighting purposes
- JSA JIS C 7550 AMD 1 Photobiological safety of lamps and lamp systems (Amendment 1)
- JSA JIS C 6802 Safety of laser products
- JSA JIS C 1010-2-33 Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-33: Particular requirements for hand-held multi meters and other meters, for domestic and professional use, capable of measuring mains voltage
- JSA JIS C 9335-2-89 Household and similar electrical appliances - Safety - Part 2-89: Particular requirements for commercial refrigerating appliances with an incorporated or remote refrigerant condensing unit or compressor
- IEC 60068-2-75 Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests - Edition 2.0
- BSI BS EN 62271-202 High-voltage switchgear and controlgear Part 202: High voltage/low-voltage prefabricated substation - CORR: October 31, 2014
- IEC TR 62271-208 High-voltage switchgear and controlgear – Part 208: Methods to quantify the steady state, power-frequency electromagnetic fields generated by HV switchgear assemblies and HV/LV prefabricated substations - Edition 1.0
- IEC 62271-200 CORR 1 High-voltage switchgear and controlgear – Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV - Edition 2.0
- IEC TR 62271-208 High-voltage switchgear and controlgear – Part 208: Methods to quantify the steady state, power-frequency electromagnetic fields generated by HV switchgear assemblies and HV/LV prefabricated substations - Edition 1.0
- BSI BS EN 62271-202 High-voltage switchgear and controlgear Part 202: High voltage/low-voltage prefabricated substation - CORR: October 31, 2014
- IEC 60068-2-75 Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests - Edition 2.0
- JSA JIS C 9335-2-89 Household and similar electrical appliances - Safety - Part 2-89: Particular requirements for commercial refrigerating appliances with an incorporated or remote refrigerant condensing unit or compressor
- JSA JIS C 1010-2-33 Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-33: Particular requirements for hand-held multi meters and other meters, for domestic and professional use, capable of measuring mains voltage
- JSA JIS C 6802 Safety of laser products
- JSA JIS C 7550 AMD 1 Photobiological safety of lamps and lamp systems (Amendment 1)
- JSA JIS C 7551-1 Incandescent lamps - Safety specifications - Part 1: Tungsten filament lamps for domestic and similar general lighting purposes
- JSA JIS C 8122 Bayonet lampholders
- 13.300
- JSA JIS C 8105-1 Luminaires - Part 1: General requirements for safety
- JSA JIS C 8122 Bayonet lampholders
- JSA JIS C 7551-1 Incandescent lamps - Safety specifications - Part 1: Tungsten filament lamps for domestic and similar general lighting purposes
- JSA JIS C 7550 AMD 1 Photobiological safety of lamps and lamp systems (Amendment 1)
- JSA JIS C 6802 Safety of laser products
- JSA JIS C 1010-2-33 Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-33: Particular requirements for hand-held multi meters and other meters, for domestic and professional use, capable of measuring mains voltage
- JSA JIS C 9335-2-89 Household and similar electrical appliances - Safety - Part 2-89: Particular requirements for commercial refrigerating appliances with an incorporated or remote refrigerant condensing unit or compressor
- IEC 60068-2-75 Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests - Edition 2.0
- BSI BS EN 62271-202 High-voltage switchgear and controlgear Part 202: High voltage/low-voltage prefabricated substation - CORR: October 31, 2014
- IEC TR 62271-208 High-voltage switchgear and controlgear – Part 208: Methods to quantify the steady state, power-frequency electromagnetic fields generated by HV switchgear assemblies and HV/LV prefabricated substations - Edition 1.0
- IEC 62271-200 CORR 1 High-voltage switchgear and controlgear – Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV - Edition 2.0
- IEC TR 62271-208 High-voltage switchgear and controlgear – Part 208: Methods to quantify the steady state, power-frequency electromagnetic fields generated by HV switchgear assemblies and HV/LV prefabricated substations - Edition 1.0
- BSI BS EN 62271-202 High-voltage switchgear and controlgear Part 202: High voltage/low-voltage prefabricated substation - CORR: October 31, 2014
- IEC 60068-2-75 Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests - Edition 2.0
- JSA JIS C 9335-2-89 Household and similar electrical appliances - Safety - Part 2-89: Particular requirements for commercial refrigerating appliances with an incorporated or remote refrigerant condensing unit or compressor
- JSA JIS C 1010-2-33 Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-33: Particular requirements for hand-held multi meters and other meters, for domestic and professional use, capable of measuring mains voltage
- JSA JIS C 6802 Safety of laser products
- JSA JIS C 7550 AMD 1 Photobiological safety of lamps and lamp systems (Amendment 1)
- JSA JIS C 7551-1 Incandescent lamps - Safety specifications - Part 1: Tungsten filament lamps for domestic and similar general lighting purposes
- JSA JIS C 8122 Bayonet lampholders
- JSA JIS C 8105-1 Luminaires - Part 1: General requirements for safety
- JSA JIS C 8105-1 Luminaires - Part 1: General requirements for safety
- JSA JIS C 8122 Bayonet lampholders
- JSA JIS C 7551-1 Incandescent lamps - Safety specifications - Part 1: Tungsten filament lamps for domestic and similar general lighting purposes
- JSA JIS C 7550 AMD 1 Photobiological safety of lamps and lamp systems (Amendment 1)
- JSA JIS C 6802 Safety of laser products
- JSA JIS C 1010-2-33 Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-33: Particular requirements for hand-held multi meters and other meters, for domestic and professional use, capable of measuring mains voltage
- JSA JIS C 9335-2-89 Household and similar electrical appliances - Safety - Part 2-89: Particular requirements for commercial refrigerating appliances with an incorporated or remote refrigerant condensing unit or compressor
- IEC 60068-2-75 Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests - Edition 2.0
- BSI BS EN 62271-202 High-voltage switchgear and controlgear Part 202: High voltage/low-voltage prefabricated substation - CORR: October 31, 2014
- IEC TR 62271-208 High-voltage switchgear and controlgear – Part 208: Methods to quantify the steady state, power-frequency electromagnetic fields generated by HV switchgear assemblies and HV/LV prefabricated substations - Edition 1.0
- IEC 62271-200 CORR 1 High-voltage switchgear and controlgear – Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV - Edition 2.0
- IEC TR 62271-208 High-voltage switchgear and controlgear – Part 208: Methods to quantify the steady state, power-frequency electromagnetic fields generated by HV switchgear assemblies and HV/LV prefabricated substations - Edition 1.0
- BSI BS EN 62271-202 High-voltage switchgear and controlgear Part 202: High voltage/low-voltage prefabricated substation - CORR: October 31, 2014
- IEC 60068-2-75 Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests - Edition 2.0
- JSA JIS C 9335-2-89 Household and similar electrical appliances - Safety - Part 2-89: Particular requirements for commercial refrigerating appliances with an incorporated or remote refrigerant condensing unit or compressor
- JSA JIS C 1010-2-33 Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-33: Particular requirements for hand-held multi meters and other meters, for domestic and professional use, capable of measuring mains voltage
- JSA JIS C 6802 Safety of laser products
- JSA JIS C 7550 AMD 1 Photobiological safety of lamps and lamp systems (Amendment 1)
- JSA JIS C 7551-1 Incandescent lamps - Safety specifications - Part 1: Tungsten filament lamps for domestic and similar general lighting purposes
- JSA JIS C 7551-1 Incandescent lamps - Safety specifications - Part 1: Tungsten filament lamps for domestic and similar general lighting purposes
- JSA JIS C 7550 AMD 1 Photobiological safety of lamps and lamp systems (Amendment 1)
- JSA JIS C 6802 Safety of laser products
- JSA JIS C 1010-2-33 Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-33: Particular requirements for hand-held multi meters and other meters, for domestic and professional use, capable of measuring mains voltage
- JSA JIS C 9335-2-89 Household and similar electrical appliances - Safety - Part 2-89: Particular requirements for commercial refrigerating appliances with an incorporated or remote refrigerant condensing unit or compressor
- IEC 60068-2-75 Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests - Edition 2.0
- BSI BS EN 62271-202 High-voltage switchgear and controlgear Part 202: High voltage/low-voltage prefabricated substation - CORR: October 31, 2014
- IEC TR 62271-208 High-voltage switchgear and controlgear – Part 208: Methods to quantify the steady state, power-frequency electromagnetic fields generated by HV switchgear assemblies and HV/LV prefabricated substations - Edition 1.0
- IEC 62271-200 CORR 1 High-voltage switchgear and controlgear – Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV - Edition 2.0
- IEC TR 62271-208 High-voltage switchgear and controlgear – Part 208: Methods to quantify the steady state, power-frequency electromagnetic fields generated by HV switchgear assemblies and HV/LV prefabricated substations - Edition 1.0
- BSI BS EN 62271-202 High-voltage switchgear and controlgear Part 202: High voltage/low-voltage prefabricated substation - CORR: October 31, 2014
- IEC 60068-2-75 Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests - Edition 2.0
- JSA JIS C 9335-2-89 Household and similar electrical appliances - Safety - Part 2-89: Particular requirements for commercial refrigerating appliances with an incorporated or remote refrigerant condensing unit or compressor
- JSA JIS C 1010-2-33 Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-33: Particular requirements for hand-held multi meters and other meters, for domestic and professional use, capable of measuring mains voltage
- JSA JIS C 6802 Safety of laser products
- JSA JIS C 7550 AMD 1 Photobiological safety of lamps and lamp systems (Amendment 1)
- JSA JIS C 7550 AMD 1 Photobiological safety of lamps and lamp systems (Amendment 1)
- JSA JIS C 6802 Safety of laser products
- JSA JIS C 1010-2-33 Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-33: Particular requirements for hand-held multi meters and other meters, for domestic and professional use, capable of measuring mains voltage
- JSA JIS C 9335-2-89 Household and similar electrical appliances - Safety - Part 2-89: Particular requirements for commercial refrigerating appliances with an incorporated or remote refrigerant condensing unit or compressor
- IEC 60068-2-75 Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests - Edition 2.0
- BSI BS EN 62271-202 High-voltage switchgear and controlgear Part 202: High voltage/low-voltage prefabricated substation - CORR: October 31, 2014
- IEC TR 62271-208 High-voltage switchgear and controlgear – Part 208: Methods to quantify the steady state, power-frequency electromagnetic fields generated by HV switchgear assemblies and HV/LV prefabricated substations - Edition 1.0
- IEC 62271-200 CORR 1 High-voltage switchgear and controlgear – Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV - Edition 2.0
- IEC TR 62271-208 High-voltage switchgear and controlgear – Part 208: Methods to quantify the steady state, power-frequency electromagnetic fields generated by HV switchgear assemblies and HV/LV prefabricated substations - Edition 1.0
- BSI BS EN 62271-202 High-voltage switchgear and controlgear Part 202: High voltage/low-voltage prefabricated substation - CORR: October 31, 2014
- IEC 60068-2-75 Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests - Edition 2.0
- JSA JIS C 9335-2-89 Household and similar electrical appliances - Safety - Part 2-89: Particular requirements for commercial refrigerating appliances with an incorporated or remote refrigerant condensing unit or compressor
- JSA JIS C 1010-2-33 Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-33: Particular requirements for hand-held multi meters and other meters, for domestic and professional use, capable of measuring mains voltage
- JSA JIS C 6802 Safety of laser products
- JSA JIS C 6802 Safety of laser products
- JSA JIS C 1010-2-33 Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-33: Particular requirements for hand-held multi meters and other meters, for domestic and professional use, capable of measuring mains voltage
- JSA JIS C 9335-2-89 Household and similar electrical appliances - Safety - Part 2-89: Particular requirements for commercial refrigerating appliances with an incorporated or remote refrigerant condensing unit or compressor
- IEC 60068-2-75 Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests - Edition 2.0
- BSI BS EN 62271-202 High-voltage switchgear and controlgear Part 202: High voltage/low-voltage prefabricated substation - CORR: October 31, 2014
- IEC TR 62271-208 High-voltage switchgear and controlgear – Part 208: Methods to quantify the steady state, power-frequency electromagnetic fields generated by HV switchgear assemblies and HV/LV prefabricated substations - Edition 1.0
- IEC 62271-200 CORR 1 High-voltage switchgear and controlgear – Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV - Edition 2.0
- IEC TR 62271-208 High-voltage switchgear and controlgear – Part 208: Methods to quantify the steady state, power-frequency electromagnetic fields generated by HV switchgear assemblies and HV/LV prefabricated substations - Edition 1.0
- BSI BS EN 62271-202 High-voltage switchgear and controlgear Part 202: High voltage/low-voltage prefabricated substation - CORR: October 31, 2014
- IEC 60068-2-75 Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests - Edition 2.0
- JSA JIS C 9335-2-89 Household and similar electrical appliances - Safety - Part 2-89: Particular requirements for commercial refrigerating appliances with an incorporated or remote refrigerant condensing unit or compressor
- JSA JIS C 1010-2-33 Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-33: Particular requirements for hand-held multi meters and other meters, for domestic and professional use, capable of measuring mains voltage
- JSA JIS C 1010-2-33 Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-33: Particular requirements for hand-held multi meters and other meters, for domestic and professional use, capable of measuring mains voltage
- JSA JIS C 9335-2-89 Household and similar electrical appliances - Safety - Part 2-89: Particular requirements for commercial refrigerating appliances with an incorporated or remote refrigerant condensing unit or compressor
- IEC 60068-2-75 Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests - Edition 2.0
- BSI BS EN 62271-202 High-voltage switchgear and controlgear Part 202: High voltage/low-voltage prefabricated substation - CORR: October 31, 2014
- IEC TR 62271-208 High-voltage switchgear and controlgear – Part 208: Methods to quantify the steady state, power-frequency electromagnetic fields generated by HV switchgear assemblies and HV/LV prefabricated substations - Edition 1.0
- IEC 62271-200 CORR 1 High-voltage switchgear and controlgear – Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV - Edition 2.0
- IEC TR 62271-208 High-voltage switchgear and controlgear – Part 208: Methods to quantify the steady state, power-frequency electromagnetic fields generated by HV switchgear assemblies and HV/LV prefabricated substations - Edition 1.0
- BSI BS EN 62271-202 High-voltage switchgear and controlgear Part 202: High voltage/low-voltage prefabricated substation - CORR: October 31, 2014
- IEC 60068-2-75 Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests - Edition 2.0
- JSA JIS C 9335-2-89 Household and similar electrical appliances - Safety - Part 2-89: Particular requirements for commercial refrigerating appliances with an incorporated or remote refrigerant condensing unit or compressor
- JSA JIS C 9335-2-89 Household and similar electrical appliances - Safety - Part 2-89: Particular requirements for commercial refrigerating appliances with an incorporated or remote refrigerant condensing unit or compressor
- IEC 60068-2-75 Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests - Edition 2.0
- BSI BS EN 62271-202 High-voltage switchgear and controlgear Part 202: High voltage/low-voltage prefabricated substation - CORR: October 31, 2014
- IEC TR 62271-208 High-voltage switchgear and controlgear – Part 208: Methods to quantify the steady state, power-frequency electromagnetic fields generated by HV switchgear assemblies and HV/LV prefabricated substations - Edition 1.0
- IEC 62271-200 CORR 1 High-voltage switchgear and controlgear – Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV - Edition 2.0
- IEC TR 62271-208 High-voltage switchgear and controlgear – Part 208: Methods to quantify the steady state, power-frequency electromagnetic fields generated by HV switchgear assemblies and HV/LV prefabricated substations - Edition 1.0
- BSI BS EN 62271-202 High-voltage switchgear and controlgear Part 202: High voltage/low-voltage prefabricated substation - CORR: October 31, 2014
- IEC 60068-2-75 Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests - Edition 2.0
- BSI BS EN 62271-202 High-voltage switchgear and controlgear Part 202: High voltage/low-voltage prefabricated substation - CORR: October 31, 2014
- IEC TR 62271-208 High-voltage switchgear and controlgear – Part 208: Methods to quantify the steady state, power-frequency electromagnetic fields generated by HV switchgear assemblies and HV/LV prefabricated substations - Edition 1.0
- IEC 62271-200 CORR 1 High-voltage switchgear and controlgear – Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV - Edition 2.0
- IEC TR 62271-208 High-voltage switchgear and controlgear – Part 208: Methods to quantify the steady state, power-frequency electromagnetic fields generated by HV switchgear assemblies and HV/LV prefabricated substations - Edition 1.0
- IEC TR 62271-208 High-voltage switchgear and controlgear – Part 208: Methods to quantify the steady state, power-frequency electromagnetic fields generated by HV switchgear assemblies and HV/LV prefabricated substations - Edition 1.0
- IEC 62271-200 CORR 1 High-voltage switchgear and controlgear – Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV - Edition 2.0
- IEC 62271-200 CORR 1 High-voltage switchgear and controlgear – Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV - Edition 2.0
- IEC 62271-103 CORR 1 High-voltage switchgear and controlgear – Part 103: Switches for rated voltages above 1 kV up to and including 52 kV - Edition 1.0
- IEC 62271-3 High-voltage switchgear and controlgear - Part 3: Digital interfaces based on IEC 61850 - Edition 2.0
- IEC 60794-1-1 Optical fibre cables – Part 1-1: Generic specification – General - Edition 4.0
- JSA JIS C 8105-1 Luminaires - Part 1: General requirements for safety
- Картотека зарубежных и международных стандартов
European Committee for Electrotechnical Standardization
Optical fibre cables - Part 5: Sectional specification - Microduct cabling for installation by blowing
N EN 60794-5
Annotation
This part of IEC 60794, which is a sectional specification, specifies the requirements of microduct optical fibre cables, microduct fibre units, microducts and protected microducts for installation by blowing for outdoor and/or indoor use.
The microduct optical fibre cables and microduct fibre units utilize the structure of the microduct or protected microducts to support installation and to provide protection over the design lifetime.
These products may be used for applications such as communication and transmission networks, transmission, telephone and data processing equipment, control and monitoring applications.
The cabling structures described in this sectional specification are uniquely designed to facilitate and take advantage of installation by blowing into microducts.
IEC TR 62839-1 gives rules to build an environmental declaration, if needed.
Автоматический перевод:
Волоконно-оптические кабели - Часть 5: Частная спецификация - Микроканал, телеграфирующий для установки путем выдувания
Эта часть IEC 60794, который является частной спецификацией, указывает требования волоконно-оптических кабелей микроканала, оптических модулей микроканала, микроканалов и защищенных микроканалов для установки путем выдувания для наружного и/или внутреннего использования.
