HD620 10-E2 Cable Code DesignationDefinitions and Symbols:| Symbol | Description |
| R | XLPE |
| H5 | Metallic screen Al |
| Z1 | Polyolefin compound |
| OL | Longitudinal watertightness |
| (S) | Type 10E-7 |
| (AS) | Type 10E-8 |
Voltage Classification (Uo/U kV):1 [single core cable]
× (nominal cross-sectional area in mm²)
K [compact round shape]
Al [only when aluminium conductor is used]
Examples:Compact aluminium conductor:| RH5Z1-OL | 12/20 kV 1×95 K Al |
| RH5Z1-OL (AS) | 12/20 kV 1×150 K Al |
Compact copper conductor:| RH5Z1-OL (AS) | 12/20 kV 1×500 K |