Hamburg-Bergedorf, Germany Phone 040 66969 120Mobile 040 66969 121info@kalwer-netzbau.example

Trade 04 · Charging infrastructure

E-mobility

Rapid charging parks from the cable route to commissioning – trained by the manufacturer for rapid charging stations.

Heavy underground cables in the open trench beside the paving, installers pulling cable
Cable pulling to the charging point · E-mobility
Installer on a ladder at the open power unit of a rapid charging station
Installing the power unit · E-mobility
Finished rapid chargers in a car park
Rapid chargers in operation · E-mobility

1Service items

ItemServiceDescriptionUnit
04.10Cable route and cable pullingFrom the grid connection or substation to the charging point: trench, conduits, underground cable.m
04.20Foundations and conduitsFoundations for chargers and power units, conduits with spare capacity.pc
04.30Installing rapid chargersSetting up and connecting rapid charging stations with 150 and 300 kW.pc
04.40CommissioningCommissioning the station and connecting it via the charger's web interface.pc
04.50Maintenance and upgradeAnnual preventive maintenance and power stack upgrades to manufacturer specification.pc

2Power path

  1. Grid connection

    Substation, low-voltage distribution, house connection or sub-distribution – this is where the route begins.

  2. Cable route

    Trench, conduits in the sand bed, warning tape, pulling the underground cables and compacted backfill.

  3. Foundation and installation

    Foundation with cable entry matched to the charger, installation of power unit and chargers.

  4. Commissioning

    Testing, commissioning and connecting via the charger's web interface.

3Civil works for charging points

  • Cable routes

    From the connection point to the charging point – in asphalt, paving or green areas.

  • Spare conduits

    Additional conduits for future charging points, laid in the open trench at little extra effort.

  • Foundations

    Foundations and plinths for chargers and wallbox pillars.

  • Surface and marking

    Paving, asphalt and collision protection, joined to the existing surface.

For charging points where we only build the civil works, the electrical connection of the charger is carried out by a licensed electrical contractor.

4Certificate

Certificate of 14 November 2023

Manufacturer training in rapid charging technology

Jens Kalwer

Jens Kalwer has completed the manufacturer's training for rapid charging stations: installation, commissioning and annual preventive maintenance of 150 and 300 kW stations as well as power unit upgrades.

5Photos

Two electricians at an open distribution cabinet, cables and material in frontEnlarge photo
Low-voltage distribution for the charging parkE-mobility
Installers at a rapid charger in a cordoned-off car parkEnlarge photo
Building a rapid charging parkE-mobility · 5 March 2024 · Neu Wulmstorf
Heavy underground cables in the open trench beside the paving, installers pulling cableEnlarge photo
Cable pulling to the charging pointE-mobility
Installer on a ladder at the open power unit of a rapid charging stationEnlarge photo
Installing the power unitE-mobility
Crimped cable lugs on the busbars of a charging stationEnlarge photo
Cable connection with lugsE-mobility
Test instrument in front of an open distribution cabinet, test leads connectedEnlarge photo
Testing at the distribution cabinetE-mobility · 14 March 2024 · Neu Wulmstorf
Covered rapid charging stations at a motorway service areaEnlarge photo
Charging station on the motorwayE-mobility
Finished rapid chargers in a car parkEnlarge photo
Rapid chargers in operationE-mobility

6Locations

  • Service areas and truck stops

    Rapid charging on the motorway.

  • Car parks and retail charging parks

    Retail, hotels and restaurants.

  • Company premises

    Charging points for company cars, fleet and staff.

  • Municipalities

    Public charging points on streets and squares.

  • Residential complexes

    Underground car parks and parking spaces of property managers.

7Enquiry

Enquire: E-mobility

This trade's items can be carried straight into the enquiry form.

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Contact

Request a project

Send us your bill of quantities, route plan or simply location and scope. We will get back to you personally.

Enquire now040 66969 121

Contractor
Kalwer Netzbau, Bergedorf
Contact person
Jens Kalwer · j.kalwer@kalwer-netzbau.example
Working hours
Monday to Friday, 8 am – 5 pm