Voltage Levels to IEC 60038
The standard aims to consolidate AC and traction voltages within the industry and defines the following bands:
- band 1 - A.C. systems 100 V to 1000 V
- band 2 - A.C and D.C traction systems
- band 3 - A.C. systems above 1 kV to 35 kV
- band 4 - A.C. systems above 35 kV to 230 kV
- band 5 - A.C. systems above 245 kV
A.C. systems 100 V to 1000 V
Nominal Voltage, V |
Three-phase four-wire or three-wire systems |
Single-phase three-wire systems |
50 Hz |
60 Hz |
60 Hz |
- |
208/120 |
240/120 |
- |
240 |
- |
400/230 |
4808/277 |
- |
690/400 |
480 |
- |
- |
600/347 |
- |
1000 |
600 |
- |
Supply voltage range ±10 % at the supply terminals
Supply terminal to final equipment maximum 4% voltage drop
A.C and D.C traction systems
Voltage, V |
Lowest |
Nominal |
Highest |
Frequency |
D.C. Systems |
(400) |
(600) |
(720) |
|
500 |
750 |
900 |
|
1000 |
1500 |
1600 |
|
2000 |
3000 |
3600 |
|
A.C. Single Phase Systems |
(4750) |
(6250) |
(6900) |
50 or 60 |
12000 |
15000 |
17250 |
16 2/3 |
19000 |
25000 |
27500 |
50 or 60 |
Bracketed are non preferred and should not be used if possible
A.C. systems above 1 kV to 35 kV
Voltage, kV |
Series I |
Series 2 |
Highest |
Nominal |
Highest |
Nominal |
3.6 |
3.3 |
3 |
4.40 |
4.16 |
7.2 |
6.6 |
6 |
|
|
12 |
11 |
10 |
|
|
|
|
|
13.2 |
12.47 |
|
|
|
13.97 |
13.2 |
|
|
|
14.52 |
13.8 |
(17.5) |
|
(15) |
|
|
24 |
22 |
20 |
|
|
|
|
|
26.47 |
24.94 |
36 |
33 |
|
|
|
|
|
|
36.5 |
34.5 |
40.5 |
|
35 |
|
|
It is recommended that only one series be used.
A.C. systems above 35 kV to 230 kV
Voltage, kV |
Highest |
Nominal Voltage, V |
(52) |
(45) |
|
7.25 |
66 |
69 |
123 |
110 |
115 |
145 |
132 |
138 |
(170) |
(150) |
|
245 |
220 |
230 |
Only one series should be used in each country
A.C. systems above 245 kV
Recommended in each geographical group only one of the following be used:
- 245 kV - 300 kV - 262 kV
- 362 kV - 420 kV
- 420 kV 550 kV
Highest Voltage, kV |
(300) |
362 |
420 |
550 |
800 |
1050 |
1200 |