Cableizer ®

Rated line-to-line voltage

The rated voltage of a cable is limited to the choices below. However, when laid in a project, the operating voltage of every cable system can be chosen arbitrary but no higher than $U_m$

For DC cables, e.g. in PV installations, the highest voltage of equipment is 1.5 · $U_m$ according to DIN VDE 0298-3.
$U_m$ will increase as follows: 440→660 V, 500→825 V, 825→1238 V, 1 kV→1.8 KV, 3 kV→5.4 kV.

Symbol
$U_n$
Unit
kV
Related
$U_0$
Base voltage for tests [kV]
$U_m$
Highest voltage for equipment [kV]
Used in
$SIL$
Surge impedance loading [MW]
Choices
$U_n$$U_m$$U_{mDC}$$U_0$Standard
208 V240 V120 VUSA, Canada
400 V440 V660 V230 VDIN VDE 0298-3
480 V600 V277 VUSA, Canada
500 V550 V825 V300 VDIN VDE 0298-3
750 V825 V1238 V450 VDIN VDE 0298-3
1 kV1.2 kV1.8 kV0.6 kVIEC 60502-1 Ed.2.1
3 kV3.6 kV5.4 kV1.8 kVIEC 60502-1 Ed.2.1
6 kV7.2 kV3.6 kVIEC 60502-2 Ed.3.0
6.6 kV7.2 kV3.8 kVHD 620 S2:2010 Part 1
10 kV12 kV6 kVIEC 60502-2 Ed.3.0
11 kV12 kV6.35 kVUK & Commonwealth
15 kV17.5 kV8.7 kVIEC 60502-2 Ed.3.0
20 kV24 kV12 kVIEC 60502-2 Ed.3.0
22 kV24 kV12.7 kVHD 620 S2:2010 Part 1
25 kV30 kV15 kVHD 620 S2:2010 Part 1
30 kV36 kV18 kVIEC 60502-2 Ed.3.0
33 kV36 kV19 kVUK & Commonwealth
36 kV42 kV20.8 kVHD 620 S2:2010 Part 1
45 kV52 kV26 kVIEC 60840 Ed.5.0
60 kV72.5 kV36 kVIEC 60840 Ed.4.0
66 kV72.5 kV38 kVUK & Commonwealth
110 kV123 kV64 kVIEC 60840 Ed.5.0
132 kV145 kV76 kVIEC 60840 Ed.5.0
150 kV170 kV87 kVIEC 60840 Ed.5.0
220 kV245 kV127 kVIEC 62067 Ed.3.0
275 kV300 kV160 kVUK & Commonwealth
280 kV300 kV160 kVIEC 62067 Ed.3.0
330 kV362 kV190 kVIEC 62067 Ed.3.0
380 kV420 kV220 kVIEC 62067 Ed.3.0
400 kV420 kV230 kVUK & Commonwealth
500 kV550 kV290 kVIEC 62067 Ed.3.0