Glossary
Building supply installations (instalaciones de enlace)
The part of a building electrical installation that links the distributor network to each home or business unit: main fuse box (CGP), general supply line, meter room and individual riser cables (ITC-BT-12).
What building supply installations are
Instalaciones de enlace are the stretch that carries electricity from the street network to the board of each home or business unit in a building. They are covered by ITC-BT-12 to ITC-BT-16 of the Low Voltage Regulations (REBT). Just before them is the service connection (acometida), the cable from the network, which belongs to the distributor.
The parts
- Main fuse box (CGP): a box with fuses, on the façade or in the entrance, protecting the building supply line.
- General supply line (LGA): the cables from the CGP to the meter room.
- Meter room: the room or cabinet with the meters of every home and the communal services meter.
- Individual riser cables (derivaciones individuales): the line from each meter to the board of each home or unit.
In detached houses it is simpler: a protection and metering box on the façade and a riser to the board.
Who pays for an upgrade
The CGP, the LGA and the meter room are common elements, so the community pays according to each owner’s share. Each riser serves one home; when all are renewed at once, the owners’ meeting usually agrees how to split the cost.
When they must be upgraded
- Old buildings with scattered meters, ageing cables or poorly protected boxes.
- Power increases or new supplies beyond what the supply line or risers can take: the distributor may ask for an upgrade before granting the power.
- Inspections that find faults in common areas.
- EV chargers, which need space in the meter room and enough cable size.
Who to call
The work is quoted per project, according to the number of homes and the state of the building. See building supply installations and increase contracted power in Seville, Spain.
Related services
Meter room upgrade
A meter room upgrade moves the meters scattered across floors, landings or the façade into a regulation meter room or cabinet in your building in Seville, Spain, with new individual supply cables to each home. We prepare the technical documents, coordinate with the distributor, carry out the work in phases and leave the building ready for more power and EV chargers.
Building electrical maintenance
Community of owners electrical maintenance in Seville, Spain under a contract that covers preventive checks of the communal areas, panels, lighting, garage and pumps, plus fault call-outs at any hour. A single point of contact for the community president and the property administrator.
Increase contracted power
You need to increase your electricity power in Spain when the smart meter cuts everything off as soon as the air conditioning, the oven and the washing machine run together. We check what power your installation can take, upgrade the supply cable, main switch and fuse board if needed, and issue the boletín so the distributor approves the increase.
Need an electrician in Seville, Spain?
Call us or send a WhatsApp message with a photo of the job. You get a fixed quote before any work starts.