Master company for electrical installations, photovoltaics, lightning protection, transformer substations as well as railway construction and electrification.
ELEKTROANLAGEN Ralf Kaltschmidt
Calau · Gutsstraße (company premises), CalauNew on Amplifa
About us
ELEKTROANLAGEN Ralf Kaltschmidt is an electrical contracting company founded in 1999 in Calau and led by master electrician Ralf Kaltschmidt. The company offers consulting, planning and execution of electrical installations for single- and multi-family homes, commercial and industrial clients. Core service areas include photovoltaic systems on private homes, commercial buildings and solar parks including storage solutions, lightning protection and earthing systems as well as installation and maintenance of transformer substations and transfer stations in accordance with DGUV Regulation 3. In addition, the master company undertakes railway construction and electrification including power line construction, cable laying, medium voltage, surface-level distribution cabinets, track and platform lighting as well as transformer service, sealing and spare parts supply. The work also includes indoor and outdoor lighting, reactive current compensation, civil engineering with conduit routes and charging infrastructure. Customers include, among others, Spreewaldbank, the DB Cottbus plant, the town of Calau as well as solar and wind parks in the region.
- Site
- Calau
- Processes
- Electrical installations for single- and multi-family homes, commercial and industry, Photovoltaics on commercial buildings and residential homes, solar parks, storage solutions, External lightning protection systems, Foundation earth electrode construction with documentation in accordance with DIN 18014, Civil engineering, conduit routes, Reactive current compensation, Indoor and outdoor lighting, Transformer substations and transfer stations (installation, maintenance)
- Materials
- Photovoltaics & Storage Solutions, Lightning Protection & Earthing Systems, Transformer Substations & Transfer Stations, Transformer Service & Sealing, Protective Testing & Measurements, Railway Construction & Electrification, Civil Engineering & Electrical Installation
- Founded
- 1999
- Employees
- 16
- Industries
- Private customers / residential homes, Commercial, Industry, Railway infrastructure, Energy / renewable energy, Public buildings
- 01
Consulting and planning
- 02
Quotation preparation
- 03
Civil engineering and conduit routes
- 04
Installation and assembly
- 05
Testing and maintenance in accordance with DGUV Regulation 3
- 06
Service and spare parts supply
Services and Processes
Photovoltaics & Storage Solutions
Installation of PV systems on private homes, commercial buildings and solar parks including storage solutions and charging infrastructure.
Lightning Protection & Earthing Systems
Construction of external lightning protection systems and foundation earth electrodes with documentation in accordance with DIN 18014.
Transformer Substations & Transfer Stations
Delivery, positioning, installation and acceptance support for transformer substations and transfer stations, also in solar and wind parks.
Transformer Service & Sealing
Repair of transformers, refurbishment of oil sumps and concrete, oil-stop coatings and sealing of cables against pressing water.
Protective Testing & Measurements
Maintenance in accordance with BGV A3 / DGUV Regulation 3, protective tests and measurements as well as sheath and cable testing on medium-voltage stations.
Railway Construction & Electrification
Power line construction, cable laying and cable pulling, medium voltage, surface-level distribution cabinets, track and platform lighting as well as earthing systems.
Civil Engineering & Electrical Installation
Electrical installations for residential, commercial and industrial buildings, indoor and outdoor lighting, reactive current compensation as well as civil engineering and conduit routes.
Locations
Calau
DEHeadquarters and operating site with office, welfare, workshop and warehouse buildings
- Mini excavator 1.5 t
- Wheel loader Kramer 480 (40 km/h)
- Articulated telescopic trailer-mounted work platform 18 m
- Self-propelled scissor lift Haulotte Compact 12
- Self-propelled telescopic boom lift Haulotte Star 10
- Truck with loading crane
- Service vehicles
- Measuring and testing equipment
- Trailers
Services
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Electrical installations for single- and multi-family homes, commercial and industryAssembly | – | – | – | – | – |
| Photovoltaics on commercial buildings and residential homes, solar parks, storage solutionsAssembly | – | – | – | – | – |
| External lightning protection systemsAssembly | – | – | – | – | – |
| Foundation earth electrode construction with documentation in accordance with DIN 18014Assembly | – | – | – | – | – |
| Civil engineering, conduit routesAssembly | – | – | – | – | – |
| Reactive current compensationEngineering | – | – | – | – | – |
| Indoor and outdoor lightingAssembly | – | – | – | – | – |
| Transformer substations and transfer stations (installation, maintenance)Assembly | – | – | – | – | – |
| Maintenance in accordance with BGV A3 / DGUV Regulation 3, protective tests, measurements onTesting | – | – | – | – | – |
| Transformer service & sealing (repair, transformer oil sump, sealing of cables against pressingSurface | – | – | – | – | Concrete, Transformer oil |
| Railway construction & electrification (power line construction, cable laying, cable pulling,Assembly | – | – | – | – | – |
| Lighting systems on tracks and platformsAssembly | – | – | – | – | – |
| Distribution cabinets - surface-level distribution cabinetsAssembly | – | – | – | – | – |
| Earthing systemsAssembly | – | – | – | – | – |
| Charging infrastructure (newly developed business field)Assembly | – | – | – | – | – |
8 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Mini excavator | – | 1 | – | – | Calau |
| Wheel loader | Kramer 480 | 1 | 40 km/h | – | Calau |
| Articulated telescopic trailer-mounted work platform | – | 1 | 18 m | – | Calau |
| Self-propelled scissor lift | Haulotte Compact 12 | 1 | – | – | Calau |
| Self-propelled telescopic boom lift | Haulotte Star 10 | 1 | – | – | Calau |
| Truck with loading crane | – | 1 | – | – | Calau |
| Service vehicles | – | – | – | – | Calau |
| Measuring and testing equipment | – | – | – | – | Calau |
Additional services
Reference customers
History
- 1999
Founded on 01.04.1999 as a 3-man business in Calau by Ralf Kaltschmidt.
- 2014
15th anniversary; master company with 15 employees
- 2015
Maintenance in accordance with BGV A3 on a transfer station in the Pattensen wind park
- 2019
20th anniversary at the company premises on Gutsstraße in Calau; charity donation drive for social institutions
- 2024
25th anniversary ("25 Jahre unter Strom"); 16 employees