Electricity underground
Underground cable laying - safe and efficient
Laying underground cables means future security: whether for power supply, fiber optic networks, or industrial plants, our certified civil engineering specialists implement professional cable routes in accordance with the highest safety standards. Using state-of-the-art trenchless technology and precise depth control, we minimize interference with existing infrastructure. From planning in accordance with TAB to restoring the surface, we guarantee on-time implementation in accordance with VDE 0210 and DIN 18300. Planning reliability thanks to a 10-year warranty on earthworks.
Range of services in detail
energy supply
Installation in accordance with VDE 0210-1:
Medium-voltage cables (10-30 kV): For industrial and commercial parks
Low voltage (400 V): House connections, PV parks
Direct current lines (HVDC): For wind farms and storage facilities
Materials: N2XSY, NA2XS2Y, XLPE-insulated cables
data infrastructure
Broadband expansion with:
Fiber optic cable laying (FTTH): Microtrenching, pipe jacking
Copper cables: For existing networks and emergency power systems
Empty conduit systems: HDD method for crossings
Standards: DIN EN 50174, VDE 0800
Special installations
Solutions for complex environments:
Underpasses: roads, railway lines, waterways
Industrial plants: Explosion protection according to ATEX
Protective measures: Cable warning tapes, concrete protection plates
Method: Horizontal directional drilling, shaft construction
Economic efficiency & ecology
Cost factors:
Material: 35-45% (cables, pipes, protection systems)
Civil engineering: 50-60% (use of equipment, excavation)
Planning: 10% (route alignment, permits)
Environmental benefits:
Up to 70% less land use compared to overhead lines
Recultivation with vegetation appropriate to the location
Groundwater-conserving methods (e.g., flush drilling)
Noise reduction through electric drives (≤ 65 dB according to TA Lärm)
- Reliable protection against failures
Economic efficiency
Cost reduction over the life cycleEnvironmental compatibility
Minimal impact on nature and the cityscape
Questions and answers
Do underground cables have to be reported during construction work?
Yes! By:
Request cable diagrams (www.kabelauskunft.de)
Location prior to excavation work (DIN 4871)
Safety distance >30 cm on both sides
Liability: Up to €10 million in the event of damage (§ 909 BGB)
Which cable for underground installation?
Suitable types:
Strom: NAYY-J, N2XSY (VDE 0276)
Data: G.657.A2 (glass), CAT 7 SF/UTP (copper)
Protection: Sheathed cable with copper shielding
Service life: XLPE cable >40 years
