GB/T 16895.15-2002 Electrical installations of buildings--Part 5:Seletion and erection of electrical equipment--Section 523:Current-carrying capacities in wiring systems (English Version)
The requirements of this International Standard are intended to provide for a satisfactory life of conductors and insulation subjected to the thermal effects of carrying current for prolonged periods of time in normal service. Other considerations affect the choice of cross-sectional area of conductors, such as the requirements for protection against electric shock (see GB 14821.1), protection against thermal effects (see GB 16895.2), overcurrent protection (see GB 16895.5), voltage drop (see section 525 of GB 16895.6), and limiting temperatures for terminals of equipment to which the conductors are connected (see section 526 of GB 16895.6).
For the time being, this standard relates only to non-armoured cables and insulated conductors having a nominal voltage not exceeding 1 kV a.c. or 1,5 kV d.c. This standard does not apply to armoured single-core cables.
NOTE – If armoured single-core cables are used, an appreciable reduction of the current-carrying capacities given in this standard may be required. The cable manufacturer should be consulted. This is also applicable to non-armoured single-core cables in single way metallic ducts (see 521.5 of GB 16895.6).
Forward
IEC FOREWORD
523.1 General
523.2 Ambient temperature
523.3 Soil thermal resistivity
523.4 Groups containing more than one circuit
523.5 Number of loaded conductors
523.6 Conductors in parallel
Annex A
Annex B
Annex C
Bibliography
GB/T 16895.15-2002 Electrical installations of buildings--Part 5:Seletion and erection of electrical equipment--Section 523:Current-carrying capacities in wiring systems (English Version)
Standard No.
GB/T 16895.15-2002
Status
superseded
Language
English
File Format
PDF
Word Count
14000 words
Price(USD)
350.0
Implemented on
2003-3-1
Delivery
via email in 1 business day
Detail of GB/T 16895.15-2002
Standard No.
GB/T 16895.15-2002
English Name
Electrical installations of buildings--Part 5:Seletion and erection of electrical equipment--Section 523:Current-carrying capacities in wiring systems
The requirements of this International Standard are intended to provide for a satisfactory life of conductors and insulation subjected to the thermal effects of carrying current for prolonged periods of time in normal service. Other considerations affect the choice of cross-sectional area of conductors, such as the requirements for protection against electric shock (see GB 14821.1), protection against thermal effects (see GB 16895.2), overcurrent protection (see GB 16895.5), voltage drop (see section 525 of GB 16895.6), and limiting temperatures for terminals of equipment to which the conductors are connected (see section 526 of GB 16895.6).
For the time being, this standard relates only to non-armoured cables and insulated conductors having a nominal voltage not exceeding 1 kV a.c. or 1,5 kV d.c. This standard does not apply to armoured single-core cables.
NOTE – If armoured single-core cables are used, an appreciable reduction of the current-carrying capacities given in this standard may be required. The cable manufacturer should be consulted. This is also applicable to non-armoured single-core cables in single way metallic ducts (see 521.5 of GB 16895.6).
Contents of GB/T 16895.15-2002
Forward
IEC FOREWORD
523.1 General
523.2 Ambient temperature
523.3 Soil thermal resistivity
523.4 Groups containing more than one circuit
523.5 Number of loaded conductors
523.6 Conductors in parallel
Annex A
Annex B
Annex C
Bibliography
