The French framework for MV connections: who it concerns, what it covers, the boundary with NF C 13-200, and what it changes for your substation order.
NF C 13-100 is the French framework for delivery substations: the point where your private installation connects to the distributor's public MV network. It frames the substation's design, MV cubicles, transformer, metering, protections, operator access, so the connection is safe and operable on both sides of the meter. As with any standard, the precise requirements follow the text in force and your DSO's prescriptions: they are validated at quotation stage, never from memory.
As soon as your power need exceeds what the LV network can supply, the DSO steers you towards an MV connection, and therefore towards a delivery substation in the NF C 13-100 sense. Typical cases: an industrial site, an EV charging hub, a data center, a large retail site, a solar plant injecting. The exact threshold depends on the local network: the DSO rules on it during the connection request.
Four blocks recur in every delivery substation: the MV cubicles (network incomers plus protection, the "2 incomers + 1 protection" ring arrangement being the most common), the MV/LV transformer, the metering (on the LV side in most cases covered by 13-100), and the access and safety provisions: the DSO must be able to operate its part of the substation at any time. The enclosure can be a building or a prefabricated cabin: the compact substation guide details that option.
A simple landmark: NF C 13-100 deals with the delivery substation itself; NF C 13-200 takes over for private high-voltage installations, typically when your site distributes in MV downstream of the substation (several transformers, an internal ring, MV metering). Many projects only involve 13-100; large industrial sites often combine both. In doubt, your design office rules, and our quotation aligns on its file.
The delivery substation is an object with two masters: you own it, but the DSO (Enedis in most of France) imposes its connection prescriptions and validates conformity before energisation. Concretely: the connection request has its own schedule, independent of equipment manufacturing; filing it early is the best way not to watch a finished substation wait for its energy.
Educational overview of an AFNOR framework; it does not replace the standard's text. Exact requirements follow the text in force and your operator, validated on your file.
Yes: the framework does not distinguish how the enclosure is built. A compliant prefabricated compact substation arrives factory-tested, which simplifies the site share; the DSO's prescriptions apply either way.
Your side produces the conformity attestation through the applicable verification channel, and the grid operator validates its own requirements before energising. The exact modalities follow the texts in force and your DSO.
NF C 13-100 deals with the delivery substation itself; NF C 13-200 takes over for private high-voltage installations downstream, typically when your site distributes in MV behind the substation. Many projects only involve 13-100; large industrial sites often combine both.
Yes: cubicle layout, metering, interlocks, enclosure and documentation are specified at quotation stage against the text in force and your DSO's prescriptions, then validated with the factory.