JB/T 10181.12-2014Electric Cables - Calculation of the Current Rating - Part 12: Current Rating Equations (100% Load Factor) and Calculation of Losses-Sheath Eddy Current Loss Factor for Two Circuits in Flat Formation (English PDF)
电缆载流量计算 第12部分：载流量公式(100%负荷因数)和损耗计算 双回路平面排列电缆金属套涡流损耗因数
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
May 6, 2014
Implementation date
October 1, 2014
Scope
JB/T 10181.12-2014 is the English-translated version of 电缆载流量计算 第12部分：载流量公式(100%负荷因数)和损耗计算 双回路平面排列电缆金属套涡流损耗因数.
JB/T 10181.12-2014 is part 12 of the recommended Chinese machinery industry standard on the calculation of the current rating of electric cables, and it deals with the sheath eddy current loss factors for two circuits in flat formation.
The part gives the method for calculating eddy current loss in the metal sheath of single-core cables set in a flat three-phase two-circuit arrangement, within a series framework of current rating equations at a 100 percent load factor and the calculation of losses.
JB/T 10181.12-2014 is declared an identical adoption, marked IDT, of IEC 60287-1-2-1993. It quotes IEC 60287-1-1. Its Chinese classification is K13 and its international classification 29.060.20.
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Document preview — JB/T 10181.12-2014
National Standard of the People's Republic of China
- ICS
- 29.060.20
- Replacing
- JB/T 10181.2-2000
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Contents
- 1 Scope
- 2 Normative references
1 Foreword
JB/T 10181.12-2014 was issued by MIIT on 6 May 2014 and has been in force since 1 October 2014.
It is one of 11 parts of the JB/T 10181 series.
2 Scope
This standard is part 12 of the recommended Chinese machinery industry standard on the calculation of the current rating of electric cables, and it deals with the sheath eddy current loss factors for two circuits in flat formation. The part gives the method for calculating eddy current loss in the metal sheath of single-core cables set in a flat three-phase two-circuit arrangement, within a series framework of current rating equations at a 100 percent load factor and the calculation of losses. JB/T 10181.12-2014 is declared an identical adoption, marked IDT, of IEC 60287-1-2-1993. It quotes IEC 60287-1-1. Its Chinese classification is K13 and its international classification 29.060.20.
3 Normative references
JB/T 10181.12-2014 cites the following standards, which apply in full or in part through the references made to them in its clauses.
IEC 60287-1-1
4 About this standard
Issued by: MIIT
English translation: about 20 pages
5 Related standards
Other parts of this standard:
JB/T 10181.1-2000 — Calculation of the current rating of electric cables - Part 1: Current rating equations (100% load factor) and calculation of losses - Section 1: General
JB/T 10181.3-2000 — Calculation of the current rating of electric cables - Part 2: Thermal resistance Section 1: Calculation of thermal resistance
JB/T 10181.4-2000 — Calculation of the current rating of electric cables - Part 2: Thermal resistance - Section 2: A method for calculating reduction factors for groups of cables in free air protected from solar radiation
JB/T 10181.5-2000 — Calculation of the current rating of electric cables - Part 3: Sections on operating conditions Section 1: Reference operating conditions and selection of cable type
JB/T 10181.6-2000 — Calculation of the current rating of electric cables - Part 3: Sections on operating conditions Section 2: Economic optimization of power cable size
JB/T 10181.11-2014 — Part 11: Current Rating Equations (100% Load Factor) and Calculation of Losses - General
JB/T 10181.21-2014 — Part 21: Thermal Resistance - Calculation of Thermal Resistance
JB/T 10181.22-2014 — Part 22: Thermal Resistance - A Method for Calculating Reduction Factors for Groups of Cables in Free Air, Protected from Solar Radiation
JB/T 10181.31-2014 — Part 31: Sections on Operating Conditions - Reference Operating Conditions and Selection of Cable Type
JB/T 10181.32-2014 — Calculation of the current rating of electric cables - Part 32: Operating conditions - Economic optimization of power cable size
6 Classification and status
International classification (ICS): 29.060.20
Prefix JB/T: recommended standard.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 20 pages — is available in the English PDF.
Referenced standards
Normative references
IEC 60287-1-1
Similar standards
Editions of JB/T 10181.12
| Edition | Title | Revision | Status |
|---|---|---|---|
| JB/T 10181.12-2014 | Electric Cables - Calculation of the Current Rating - Part 12: Current Rating Equations (100% Load Factor) and Calculation of Losses-Sheath Eddy Current Loss Factor for Two Circuits in Flat Formation | current edition | Current |
| JB/T 10181.2-2000 | Electric Cables - Calculation of the Current Rating - Part 12: Current Rating Equations (100% Load Factor) and Calculation of Losses-Sheath Eddy Current Loss Factor for Two Circuits in Flat Formation | previous edition | Superseded |
This page sells the current edition, JB/T 10181.12-2014. Earlier editions are listed for reference only.
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Related Standards
JB/T 10181.21-2014 — Electric Cables - Calculation of the Current Rating - Part 21: Thermal Resistance - Calculation of Thermal Resistance
JB/T 10181.11-2014 — Electric Cables - Calculation of the Current Rating - Part 11: Current Rating Equations (100% Load Factor) and Calculation of Losses - General
JB/T 10181.22-2014 — Electric Cables - Calculation of the Current Rating - Part 22: Thermal Resistance - A Method for Calculating Reduction Factors for Groups of Cables in Free Air, Protected from Solar Radiation
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JB/T 10181.12-2014
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