PREFAFRANCE
Manufacturer of delivery substations
C13100 C13200
As standard, only equipped precast units are sold.
Safety & Durability
✅ Exceptional 20-year guarantee – the best on the market
✅ Ultra-competitive prices – reliable transformers at the best cost, with 100 % French quality
✅ Over 50 years of proven expertise in design and manufacturing
✅ Fast availability – responsive stock and optimised delivery times
✅ Full compliance with international standards – safety, performance et durability garanties
✅ ISO 9001 & ISO 14001 certifications – gage de rigueur et de reliability
✅ Solutions adapted to renewable energies and modern needs
✅ Personalised technical support before, during and after installation
✅ Trusted partner for the largest groups (Veolia, Thales, Total…)
✅ Eco-responsible commitment – environmentally friendly technologies
Integration of electrical equipment
Cutting-edge technology
At PREFAFRANCE we do not just manufacture LVMDB substations: we create intelligent energy solutions, designed to last and perform.
Our high-voltage concrete substations combine robustness, innovation and cutting-edge technology to guarantee reliable, efficient and sustainable energy distribution — while reducing your carbon footprint.
Technology & innovation at the service of performance
Equipped with intelligent management and supervision systems, our substations give you total control of your installations via an intuitive, connected interface.
You optimise your performance while gaining in safety and peace of mind.
Certified safety, compliance and quality
Because safety is a priority, our equipment meets the most demanding standards, notably NF C 13-100.
Every unit is tested beyond standards and certified by AFAQ according to ISO 9001 (quality) and ISO 14001 (environment) frameworks.
The best of technology, without compromise
All our substations are equipped with the latest generation, a guarantee of reliability and excellence.
We also integrate the highest-performing switchgear, circuit breakers and transformers on the market, from the TransfoFrance brand, a world reference in electrical innovation.
PREFAFRANCE — Mastered energy, French excellence.
Concrete precast – Factory refurbishment at controlled guaranteed cost
Give your HTA installations a new lease of life
With our complete process of factory refurbishment, your high-voltage precast concrete substations recover all their original performance.
We take care of:
- Un full structural diagnosis
- The dismantling and cleaning of equipment
- The restoration and replacement of worn components
- Anti-corrosion treatment and interior/exterior finishes
Every substation is delivered with a certified test report, compliant with European standards and new equipment specifications.
Your advantages
✅ Significant savings compared to a full replacement
✅ Extended service life of your installations
✅ Compliance & safety guaranteed (normes en vigueur)
✅ Performance restored to 100 %
Key refurbishment steps
1️⃣ Full structural diagnosis of concrete and reinforcement
2️⃣ Removal and opening of the prefabricated substation
3️⃣ Restoration of the concrete structure and of the partie active
4️⃣ Anti-corrosion treatment and interior/exterior paintwork
5️⃣ Insulation, sealing and electrical standards compliance
6️⃣ Filling, sealing and vacuum restoration (if required)
7️⃣ Final delivery with compliance certificate
PREFAFRANCE, your guarantee of power – reliability – safety
Thanks to our French expertise, your HTA concrete substations are modernised, certified and ready to operate as new, en toute safety et durability.
Our installations
In Toulon, Provence-Alpes-Côte d’Azur, PREFAFRANCE installed an 800 kVA substation to power a municipal sports complex.
In Pays de la Loire, in Angers, PREFAFRANCE teams installed a 400 kVA prefabricated substation on a concrete slab as part of an industrial development project.
In the Grand Est region, in Metz, PREFAFRANCE installed a 630 kVA substation to modernise the urban distribution network.
In Bourgogne-Franche-Comté, in Mâcon, PREFAFRANCE installed a 250 kVA prefabricated substation to supply a school complex.