Electrical engineering for industrial sites and production lines
Industrial main switchboards, selectivity, harmonic management and operational continuity: EOS Électricité works with technical directors and operations managers who must combine 24/7 availability, personal safety and long-term robustness.
An electrical installation designed around the production line
Plant managers and operations managers know that industrial electrical infrastructure cannot be sized like a commercial building.
Heavy loads coexisting with sensitive loads, inrush currents, variable-frequency drives, machine tools, continuous processes: every industrial site sets its own constraints. EOS designs industrial electrical architectures built for availability, personal safety and process evolution — from the main switchboard to the motor, including sub-distribution, cable routing and earthing.
Heterogeneous loads
Variable loads, harmonics and sensitive equipment coexisting on the same network.
24/7 availability
An architecture designed to absorb incidents without stopping the line.
Scalability
Reserve power and distribution capacity to absorb future process evolution.
What a technical director faces in an industrial environment
Operations managers see four recurring families of constraints on production sites.
Cost of a line stop
A single micro-outage triggers a process purge, a long restart and production loss measured in machine-hours.
Harmonics and quality
Drives, rectifiers and non-linear loads degrade power factor and stress protections.
Personal safety
Potential hazardous-area zones, arc flash, emergency stops: safety must remain built into the architecture, not bolted on.
Maintainability
Labelling, isolation and access to devices determine how quickly maintenance teams can intervene.
Production continuity and industrial electrical resilience
A line stop is measured in machine-hours lost. Plant managers ask for an architecture able to absorb a grid incident, an internal fault or a maintenance operation without stopping the process.
Operational continuity
Backup sources and automatic transfers sized on the critical process loads.
Downtime reduction
Fine selectivity and targeted redundancy to prevent a fault from propagating to the whole line.
Electrical redundancy
N+1 or dual-feed supplies on critical points, without over-investing across the site.
Continuity planning
Phased interventions, periodic testing and up-to-date documentation for operations teams.
To size the backup layer, our teams commonly draw on our emergency power solutions: see our continuity offerings.
Industrial electrical engineering skills we bring
Our teams work alongside works, maintenance and operations departments from the scoping phase.
Main switchboards & distribution
Industrial switchboard design, selectivity, protection coordination and operations-grade labelling.
Motors and variable-speed drives
Motor feeders, soft starters, VFDs and coordination with automation systems.
Power quality
Harmonic analysis, power-factor correction and stabilisation for sensitive equipment.
Earthing system choice
TT / TN / IT selection documented according to process nature, with a technical rationale.
Earthing and equipotential bonding
Earth electrodes, equipotential bonding and surge protection sized site by site.
Typical applications in an industrial environment
Recurring contexts where our engineers step in.
- Production lines and continuous processes
- Machining shops and welding stations
- Logistics sites and conveying systems
- Boiler rooms, compressors and utilities
- Extensions and repowering of existing installations
Engineering and industrial regulatory framework
Designed with consideration for the regulatory framework applicable to industry, including principles of earthing-system choice, selectivity, harmonic management and motor protection.
- 01
Selectivity
Cascaded protection coordination to isolate a fault without cutting the whole site.
- 02
Harmonics
Analysis and treatment (filters, suitable transformers) to preserve power quality.
- 03
Motor protection
Motor feeders sized in line with starting, overload and short-circuit principles.
- 04
Hazardous areas
Consideration of principles applicable to potential ATEX zones, without asserting any classification.
- 05
Process continuity
Redundant architectures aligned with the targeted industrial availability level.
Our designs are developed in line with the principles of the applicable regulatory framework. EOS Électricité does not substitute for inspection bodies and does not attest to final compliance, which falls under the verification and commissioning procedures applicable to the project.
EOS solutions mobilised in industrial environments
Industrial projects commonly draw on these complementary expertises.