02 · Installation · low and medium voltage
Low and medium voltage electrical installations
We carry out complete electrical installations, from assembly to commissioning, in low and medium voltage, always under current codes and regulations. A single team responsible for all the electrical work.
What we do
Electrical work from start to finish
An electrical installation is judged the day it is energized. That is why we do not hand over loose assemblies: we hand over the system tested and running.
We work from the service entrance and the substation to the last lighting point, with qualified personnel and under RETIE and RETILAP at every stage. Testing, energization and documented handover.
Get a quote for my installationAssembly and commissioning in low and medium voltage.
Installation of substations and medium voltage switchgear.
Design and installation of lighting calculated with software (DIALux).
Lightning protection (air terminals) and grounding systems.
Panelboards, service entrances, conduits and cable trays.
Testing, energization and handover of the system up and running.
What we assemble
Systems we install
Each work front with its own technical judgment and its own owner, coordinated under a single schedule.
Substations and switchgear
Assembly of medium voltage substations and switchgear for industrial, commercial and institutional use.
Panelboards and feeders
Distribution panelboards, service entrances and feeders sized to the approved design.
Trays and conduits
Conduits and cable trays routed to allow maintenance and future expansion.
Calculated lighting
Lighting calculated in DIALux and installed under RETILAP, indoors and outdoors.
Lightning protection and grounding
Air terminals and grounding, mandatory under RETIE, with their verification measurements.
Testing and energization
System testing, energization and handover with the supporting documentation.
Why it pays off
What your site gains from a single owner
Splitting the electrical work among several contractors multiplies the seams where nobody answers. We close the full scope.
Let's talk about your projectFrom the service entrance to the last point, with no borders between suppliers.
The work is carried out by people trained to work under code, not improvised.
RETIE and RETILAP are not checked at the end: they are met during the whole assembly.
Tested and energized, not just installed.
If we also do the design, the drawing and the site speak the same language.
We route conduits and panelboards so future maintenance is actually possible.
How we work
From layout to energization
Five stages and one accountable firm. No grey areas between whoever supplies, whoever assembles and whoever certifies.
Tools
Software we work with
We design, model and document every project with professional engineering, BIM, calculation and visualization tools.






















Frequently asked questions
Your questions, answered
Do you install electrical substations?
What are lightning protection and grounding systems?
Do you work with medium voltage?
Can you work while the building is in operation?
Is the lighting calculated or estimated?
Do you deliver the documentation for certification?
More services
Other services by Senerging
We cover the full cycle of your electrical, telecommunications and security project, with a portfolio proven in the field.
Does your project need low and medium voltage electrical installations?
Tell us what you need and get a tailored quote. We advise you from the very first idea.






