Glossary
REBT (Reglamento Electrotécnico para Baja Tensión)
The Low Voltage Electrical Regulations, approved by Royal Decree 842/2002, are the basic rules for how low voltage electrical installations in Spain must be designed, built, certified and inspected. The Spanish equivalent of the UK wiring regulations.
What the REBT is
It sets the technical rules for any installation connected to the low voltage network: homes, shops, communal buildings, garages, industrial units and EV chargers. It was approved by Royal Decree 842/2002 and is completed by the complementary technical instructions, the ITC-BT, numbered 01 to 52.
How it is organised
- The regulation sets out general principles and the obligations of owners, installation companies and inspection bodies.
- The ITC-BT develop each topic: service installations, internal wiring, homes, bathrooms, public premises, pools and, since Royal Decree 1053/2014, EV charging (ITC-BT-52).
What it requires in a home
- 30 mA RCDs (ITC-BT-25).
- Earthing of the installation (ITC-BT-18 and 26).
- Circuits and power according to the electrification level (ITC-BT-25).
- Safety zones in bathrooms (ITC-BT-27).
- Surge protection in the cases provided (ITC-BT-23).
- A certificate issued by a registered installation company and, if no project is needed, a technical design report (ITC-BT-04).
Who applies it
Installations are carried out and certified by a registered installation company entered in the Junta de Andalucía register. Since RD 560/2010 there is no individual electrician’s card: registration belongs to the company. Inspection bodies (OCA) carry out the inspections set by ITC-BT-05.
What happens if it is not met
A non-compliant installation cannot be certified with a boletín, and without one the distributor will not process connections or power increases. See electrical certificate (boletín) in Seville, Spain.
Related services
Legalising an installation
Legalising an electrical installation in Seville, Spain is how you put in order a home, business premises or villa that never had a boletín (electrical installation certificate) or that falls short of the regulations. We inspect the installation, bring it up to the Spanish wiring regulations, write the technical design report and register the certificate with the Junta de Andalucía.
Electrical certificate (boletín)
The electrical certificate in Spain, known by everyone as the boletín and officially the CIE (certificado de instalación eléctrica), is the document a registered installer company signs to confirm that your installation meets the regulations. You need it to connect the electricity, increase your power or change the account holder with an old installation. We inspect, certify and register it with the Junta de Andalucía in Seville.
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.