CENELEC CLC/TR 50480 Determination of cross-sectional area of conductors and selection of protective devices
Данный раздел/документ содержится в продуктах:
- Техэксперт: Машиностроительный комплекс
- Картотека зарубежных и международных стандартов
- BSI BS 7629-1 Electric cables - Specification for 300/500 V fire resistant screened cables having low emission of smoke and corrosive gases when affected by fire - Part 1: Multicore and multipair cables
- BSI BS EN 50267-2-2 Common Test Methods for Cables Under Fire Conditions - Tests on Gases Evolved During Combustion of Materials From Cables - Part 2-2: Procedures - Determination of Degree of Acidity of Gases for Materials by Measuring pH and Conductivity
- BSI BS EN 50264-1 Railway applications - Railway rolling stock power and control cables having special fire performance - Part 1: General requirements
- BSI BS EN 50267-2-2 Common Test Methods for Cables Under Fire Conditions - Tests on Gases Evolved During Combustion of Materials From Cables - Part 2-2: Procedures - Determination of Degree of Acidity of Gases for Materials by Measuring pH and Conductivity
- 13
- BSI BS 7629-1 Electric cables - Specification for 300/500 V fire resistant screened cables having low emission of smoke and corrosive gases when affected by fire - Part 1: Multicore and multipair cables
- BSI BS EN 50267-2-2 Common Test Methods for Cables Under Fire Conditions - Tests on Gases Evolved During Combustion of Materials From Cables - Part 2-2: Procedures - Determination of Degree of Acidity of Gases for Materials by Measuring pH and Conductivity
- BSI BS EN 50264-1 Railway applications - Railway rolling stock power and control cables having special fire performance - Part 1: General requirements
- BSI BS EN 50267-2-2 Common Test Methods for Cables Under Fire Conditions - Tests on Gases Evolved During Combustion of Materials From Cables - Part 2-2: Procedures - Determination of Degree of Acidity of Gases for Materials by Measuring pH and Conductivity
- 13.220
- BSI BS 7629-1 Electric cables - Specification for 300/500 V fire resistant screened cables having low emission of smoke and corrosive gases when affected by fire - Part 1: Multicore and multipair cables
- BSI BS EN 50267-2-2 Common Test Methods for Cables Under Fire Conditions - Tests on Gases Evolved During Combustion of Materials From Cables - Part 2-2: Procedures - Determination of Degree of Acidity of Gases for Materials by Measuring pH and Conductivity
- BSI BS EN 50264-1 Railway applications - Railway rolling stock power and control cables having special fire performance - Part 1: General requirements
- BSI BS EN 50267-2-2 Common Test Methods for Cables Under Fire Conditions - Tests on Gases Evolved During Combustion of Materials From Cables - Part 2-2: Procedures - Determination of Degree of Acidity of Gases for Materials by Measuring pH and Conductivity
- 13.220.99
- BSI BS 7629-1 Electric cables - Specification for 300/500 V fire resistant screened cables having low emission of smoke and corrosive gases when affected by fire - Part 1: Multicore and multipair cables
- BSI BS EN 50267-2-2 Common Test Methods for Cables Under Fire Conditions - Tests on Gases Evolved During Combustion of Materials From Cables - Part 2-2: Procedures - Determination of Degree of Acidity of Gases for Materials by Measuring pH and Conductivity
- BSI BS EN 50264-1 Railway applications - Railway rolling stock power and control cables having special fire performance - Part 1: General requirements
- BSI BS EN 50267-2-2 Common Test Methods for Cables Under Fire Conditions - Tests on Gases Evolved During Combustion of Materials From Cables - Part 2-2: Procedures - Determination of Degree of Acidity of Gases for Materials by Measuring pH and Conductivity
- BSI BS 7629-1 Electric cables - Specification for 300/500 V fire resistant screened cables having low emission of smoke and corrosive gases when affected by fire - Part 1: Multicore and multipair cables
- BSI BS 7629-1 Electric cables - Specification for 300/500 V fire resistant screened cables having low emission of smoke and corrosive gases when affected by fire - Part 1: Multicore and multipair cables
- BSI BS 7629-1 Electric cables - Specification for 300/500 V fire resistant screened cables having low emission of smoke and corrosive gases when affected by fire - Part 1: Multicore and multipair cables
- 29
- BSI BS 7629-1 Electric cables - Specification for 300/500 V fire resistant screened cables having low emission of smoke and corrosive gases when affected by fire - Part 1: Multicore and multipair cables
- BSI BS EN 50267-2-2 Common Test Methods for Cables Under Fire Conditions - Tests on Gases Evolved During Combustion of Materials From Cables - Part 2-2: Procedures - Determination of Degree of Acidity of Gases for Materials by Measuring pH and Conductivity
- BSI BS EN 50264-1 Railway applications - Railway rolling stock power and control cables having special fire performance - Part 1: General requirements
- BSI BS EN 50267-2-2 Common Test Methods for Cables Under Fire Conditions - Tests on Gases Evolved During Combustion of Materials From Cables - Part 2-2: Procedures - Determination of Degree of Acidity of Gases for Materials by Measuring pH and Conductivity
- BSI BS 7629-1 Electric cables - Specification for 300/500 V fire resistant screened cables having low emission of smoke and corrosive gases when affected by fire - Part 1: Multicore and multipair cables
- BSI BS EN 50267-2-2 Common Test Methods for Cables Under Fire Conditions - Tests on Gases Evolved During Combustion of Materials From Cables - Part 2-2: Procedures - Determination of Degree of Acidity of Gases for Materials by Measuring pH and Conductivity
- BSI BS EN 50264-1 Railway applications - Railway rolling stock power and control cables having special fire performance - Part 1: General requirements
- BSI BS EN 50264-1 Railway applications - Railway rolling stock power and control cables having special fire performance - Part 1: General requirements
- BSI BS EN 60332-1-2 Tests on electric and optical fibre cables under fire conditions Part 1-2: Test for vertical flame propagation for a single insulated wire or cable Procedure for 1 kW pre-mixed flame
- CENELEC EN 61439-1 Low-voltage switchgear and controlgear assemblies - Part 1: General rules
- BSI BS 7629-1 Electric cables - Specification for 300/500 V fire resistant screened cables having low emission of smoke and corrosive gases when affected by fire - Part 1: Multicore and multipair cables
- Картотека зарубежных и международных стандартов
European Committee for Electrotechnical Standardization
Determination of cross-sectional area of conductors and selection of protective devices
N CLC/TR 50480
Annotation
This Technical Report applies to low-voltage installations with a nominal system frequency of 50 Hz in which the circuits consist of insulated conductors, cables or busbar trunking systems.
It defines the different parameters used for the calculation of the characteristics of electrical wiring systems in order to comply with rules of HD 384/HD 60364.
These rules are mainly the following:
- current-carrying capacities of the conductors;
- characteristics of protective devices in regard to protection against overcurrent;
- verification of thermal stress in conductors due to short-circuit current or earth fault current;
- fault protection (protection against indirect contact) in TN systems and IT systems;
- limitation of voltage drop;
- verification of mechanical stresses during short-circuit in busbar trunking systems (BTS) according to EN 60439-2 or powertrack systems according to EN 61534 series.
The calculations provided in this Technical Report are only applicable where the characteristics of the circuits are known.
For the purpose of this document, when referring to Busbar Trunking Systems, Powertrack Systems are also considered.
NOTE 1 Mechanical stress during short-circuit is covered by IEC 60865.
