Current rating medium voltage cables with impregnated paper insulation – single core

acc. to HD 621 S1, part 3C

This section applies to single-core cables with impregnated paper insulation – also for pre-stranded cables.

Current carrying capacity of medium voltage cables (6/10 kV)

Laying in earth (20°C)
Recommended values ​​according to HD 621 S1, part 3C, table 6
Laying in air (30°C)
Recommended values ​​according to HD 621 S1, part 3C, table 7

Current carrying capacity of medium voltage cables (12/20 kV)

Laying in earth (20°C)
Recommended values ​​according to HD 621 S1, part 3C, table 8
Laying in air (30°C)
Recommended values ​​according to HD 621 S1, part 3C, table 9

Current carrying capacity of medium voltage cables (18/30 kV)

Laying in earth (20°C)
Recommended values ​​according to HD 621 S1, part 3C, table 10
Laying in air (30°C)
Recommended values ​​according to HD 621 S1, part 3C, table 11

Current carrying capacity of medium voltage cables

Permissible short-circuit temperatures and rated short-time current densities
Recommended values ​​according to HD 621 S1, part 3C, table 13