Glossary
CGP (caja general de protección, main service fuse box)
The main protection box with fuses, on the façade or in the entrance hall, that marks the start of the building's installation and protects the main supply line. It is the point where the distributor's network ends.
What the CGP is
The CGP is where the distributor’s network ends and the building’s installation begins. The service connection (acometida) arrives here and the main supply line (línea general de alimentación) leaves for the meter room. It is usually an insulated box in a niche in the façade or in the entrance hall, closed and sealed.
What it contains
- Fuses, one per phase, protecting the main line against short circuits and overloads.
- Terminals for the service connection and main line cables.
- The neutral connection, which has no fuse.
It is part of the building’s service installations, governed by ITC-BT-12 to 16 of the REBT.
Who may open it
It is not something a resident should touch. Only the distributor or a registered installation company opens it, with live working precautions, because there is no protection upstream of its fuses.
When it is renewed
Old buildings often have deteriorated CGPs, without covers, with unsuitable fuses or without capacity for more power. They are renewed with a new meter room, when the building’s power is increased or when preparing the garage for EV chargers. It is a job for the comunidad (owners’ association).
What to do if it fails
If the whole building has lost power, a CGP fuse may have blown or there may be a network fault. Call the distributor or your electrician. For communal work see homeowners’ associations in Seville, Spain.
Related services
Power cut at home
No electricity in your apartment while the neighbours still have lights? Then the fault is in your part of the installation: the riser cable from the meter, the fuse board (consumer unit) or a joint. We find the cause, whether the whole home is dark or only half of it, and repair it.
Communal electrical faults 24 h
We provide communal electrical fault repair in Seville, Spain at any hour, because a fault in the building leaves the staircase in the dark, the garage without light or the entrance without an intercom. We find the cause, repair it and, if the fault comes from the grid, handle the report to the distribution company.
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.