Electrical systems and substations
Installation and maintenance of medium- and low-voltage substations, overhead and underground distribution networks, and industrial and commercial electrical installations, including grounding, lightning protection and protection coordination as the project requires.
Reference standards
- NOM-001-SEDE
- Electrical installations
- NOM-029-STPS
- Electrical installation maintenance
- NMX-J-549
- Lightning protection systems
- CFE
- Utility service and metering requirements
Executed work
Fig. 01Electrical room with main switchboards and a dry-type transformer 
Fig. 02Overhead distribution pole with cutouts and sectionalizing equipment 
Fig. 03Panels and electrical conduit installed outdoors
Service scope
- 01
Medium- and low-voltage substations
Installation and maintenance of compact and pad-mounted substations.
- 02
Overhead and underground distribution
Routing, conduit and cable tray, connection and commissioning of distribution networks.
- 03
Industrial and commercial installations
Service entrances, switchboards, power, lighting, conduit and cable tray, including classified areas per the site classification.
- 04
Grounding and lightning protection
Grounding systems, resistance measurement and lightning protection.
- 05
Protection coordination
Short-circuit study and protective device settings, subject to the requirement and the data available.
- 06
Transformer sale and rental
Supply for sale or rental, sized from the load study for the project.
Installations that can be verified
What you receive at close-out
- Single-line diagram of the installed work
- Design calculations where the project requires them
- Functional test and commissioning report
Electrical work is executed to NOM-001-SEDE and to the utility requirements that apply to the project.
- Execution to NOM-001-SEDE
- Utility requirements applied where relevant
- Short-circuit study and protection settings, where the installation calls for them
- Verification through an authorized UVIE where the project requires it
- Functional testing before energizing
Related capabilities
These families are frequently quoted and executed inside the same project.
Transformers and testing
Transformer maintenance and field electrical testing, with oil analysis and condition diagnosis.
Maintenance and field service
Preventive and corrective maintenance with our own crews: electrical, mechanical and pneumatic work as a single service.
Engineering and technical staffing
Electrical design in 2D and 3D, code documentation, project management and technical personnel assigned to the job.
Get a quote for the work you need
Tell us the equipment, the location and the type of intervention. We review the information to prepare the quotation or to ask for what is missing.