Starting point
A tenement house from 1920, 48 units. Installation like in many buildings of that era: aluminium wires, no protective conductor, "borrowed neutrals", floor boards remembering the times of meters on the staircase and internal power lines that could no longer accommodate today's loads - induction hobs, washing machines, air conditioners.
How we phase such a modernisation
- Inventory and design - we walk around the building, measure, document the existing state; we agree on the design with the manager (and in buildings under conservation protection - with the conservator);
- Main power lines and risers - new internal power lines and risers staircase by staircase, so that power outages are short and announced;
- Units - dates arranged individually with residents, a new board and circuits with earthing in the unit;
- Common areas - lighting of staircases, cellars and administrative circuits with separate metering;
- Measurements and documentation - at the end, acceptance measurements of each circuit, reports and as-built documentation for the manager.
Working in an occupied building
The biggest challenge is not the wires, but the people - 48 families who live normally throughout the renovation. That is why the schedule hangs on the staircase in advance, power outages are short and announced, and after each day of work, the corridors remain passable and cleaned. In the historic interior, we run the routes so as not to destroy details - stucco, woodwork, original balustrades.
Effect
Three months from the first riser to the last report. The installation meets today's standards, each unit has a new board with a residual current device, and the manager has a complete set of digital documentation. We closed the project without a single complaint.
Planning a modernisation? Check our offer for switchgear modernisation or request a quote - you will get the cost estimate before making a decision.
