IEC 60909-3:2009/COR1:2013
(Corrigendum)Corrigendum 1 - Short-circuit currents in three-phase AC systems - Part 3: Currents during two separate simultaneous line-to-earth short circuits and partial short-circuit currents flowing through earth
Corrigendum 1 - Short-circuit currents in three-phase AC systems - Part 3: Currents during two separate simultaneous line-to-earth short circuits and partial short-circuit currents flowing through earth
Corrigendum 1 - Courants de court-circuit dans les réseaux triphasés à courant alternatif - Partie 3: Courants durant deux courts-circuits monophasés simultanés séparés à la terre et courants de court-circuit partiels s'écoulant à travers la terre
General Information
- Status
- Published
- Publication Date
- 10-Sep-2013
- Technical Committee
- TC 73 - Short-circuit currents
- Current Stage
- PPUB - Publication issued
- Start Date
- 11-Sep-2013
- Completion Date
- 30-Aug-2013
Relations
- Effective Date
- 05-Sep-2023
IEC 60909-3:2009/COR1:2013 - Corrigendum 1 - Short-circuit currents in three-phase AC systems - Part 3: Currents during two separate simultaneous line-to-earth short circuits and partial short-circuit currents flowing through earth Released:9/11/2013
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Frequently Asked Questions
IEC 60909-3:2009/COR1:2013 is a standard published by the International Electrotechnical Commission (IEC). Its full title is "Corrigendum 1 - Short-circuit currents in three-phase AC systems - Part 3: Currents during two separate simultaneous line-to-earth short circuits and partial short-circuit currents flowing through earth". This standard covers: Corrigendum 1 - Short-circuit currents in three-phase AC systems - Part 3: Currents during two separate simultaneous line-to-earth short circuits and partial short-circuit currents flowing through earth
Corrigendum 1 - Short-circuit currents in three-phase AC systems - Part 3: Currents during two separate simultaneous line-to-earth short circuits and partial short-circuit currents flowing through earth
IEC 60909-3:2009/COR1:2013 is classified under the following ICS (International Classification for Standards) categories: 17.220.01 - Electricity. Magnetism. General aspects; 29.240.20 - Power transmission and distribution lines. The ICS classification helps identify the subject area and facilitates finding related standards.
IEC 60909-3:2009/COR1:2013 has the following relationships with other standards: It is inter standard links to IEC 60909-3:2009. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
IEC 60909-3:2009/COR1:2013 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
IEC 60909-3 CEI 60909-3
(Edition 3 – 2009) (Édition 3 – 2009)
Short-circuit currents in three-phase a.c. Courants de court-circuit dans
systems – les réseaux triphasés à courant alternatif –
Part 3: Currents during two separate Partie 3: Courants durant deux courts-circuits
simultaneous monophasés simultanés
line-to-earth short circuits and partial short- séparés à la terre et courants de court-circuit
circuit partiels
currents flowing through earth s'écoulant à travers la terre
CO RRI G E NDUM 1
Corrections in the French version are given after the English.
Table 2. – Resistivity of the soil and equivalent earth penetration depth
Replace for rocks 5150 by 5100 and for farmland 1320 by 931 as follows:
Equivalent earth penetration depth δ
Soil resistivity ρ
Soil types m
Ωm
for 50 Hz for 60 Hz
Granite
>10 000 >9 300 >8 500
Rocks 3 000 . 10 000 5 100 . 9 330 4 670 . 8 520
Stony soil 1 000 . 3 000 2 950 . 5110 2 690 . 4 670
Pebbles, dry sand 200 . 1 200 1 320 . 3 230 1 200 . 2 950
Calcareous soil, wet sand
70 . 200 780 . 1 320 710 . 1 200
Farmland
50 . 100 660 . 931 600 . 850
Clay, loam
10 . 50 295 . 660 270 . 600
Marshy soil
<20 <420 <380
8.3.2.1 Case 1: R → ∞
EF
Replace Equations 51b and 52b as follows:
= 0 I ≈3I +(2+r )I (51b)
A
S1Amax (0)A 3 (0)B
= I ≈3I +(2+r )I (52b)
A
S1Bmax (0)B 3 (0)A
Replace Equations 54b and 55b as follows:
= 0 I =−r 3I (54b)
A
EδAmax 3 (0)B
= 0 I =−r 3I (55b)
B
EδBmax 3 (0)A
September 2013 Septembre 2013
D.2.2 Cable impedances per unit length
Replace the last equation as follows:
µ µ δ
0 0
3ω + j3ω
...
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