Electromagnetic field measurements
Saint-Étienne, AURA

Electromagnetic field measurements in Saint-Étienne: 50 Hz and radiofrequencies, ANFR protocol, calibrated equipment, as an independent third party.

Updated 16 July 2026

Saint-Étienne · Auvergne-Rhône-Alpes

Electromagnetic field measurements in Saint-Étienne.

In Saint-Étienne, the industrial heritage translates into significant installed capacities and numerous transformer substations, often built into repurposed older buildings, a configuration that calls for a case-by-case characterisation at low frequencies. The electrically powered urban transport network is another source specific to infrastructure, which cannot be estimated and must be measured. ARKENOR carries out the on-site measurement with calibrated equipment, both at low frequencies and in radiofrequencies, and delivers an independent third-party report usable in the certification file.

In Saint-Étienne, electromagnetic field measurement establishes the real exposure of a site objectively: low frequencies at 50 Hz near distribution networks and transformer substations, radiofrequencies around transmitters. It positions the results against the regulatory reference levels and documents the "electromagnetic waves" criterion valued in HQE and NF Habitat certification.

Our services

Electromagnetic field measurements in Saint-Étienne: what we do.

50 Hz electric field (kV/m)

50 Hz magnetic field (µT)

Radiofrequencies 9 kHz to 300 GHz (V/m)

On-site campaign, calibrated equipment (NF EN 50492)

Measurement report and positioning vs reference levels

Coverage area

Electromagnetic field measurements in Saint-Étienne and the surrounding area.

Our teams travel from Aix-en-Provence to Saint-Étienne and the neighbouring municipalities of the 42 department.

Saint-Étienne
Saint-Chamond
Firminy
Rive-de-Gier
Le Chambon-Feugerolles
Saint-Just-Saint-Rambert
Roche-la-Molière

Scope

ARKENOR carries out on-site electromagnetic field measurements as an independent third party. For design-stage electromagnetic study and engineering, ARKEMEP's engineering practice takes over.

See ARKEMEP's engineering services →

FAQ

FAQ, electromagnetic field measurements in Saint-Étienne

Two distinct domains. In low frequencies (50 Hz), the electric field in kV/m and the magnetic field in µT, associated with distribution networks, transformer substations, rising mains and internal installations. In radiofrequencies, from 9 kHz to 300 GHz, the electric field in V/m, associated with telecommunications transmitters. Each domain has its own protocol and calibrated equipment.
The reference levels come from European recommendation 1999/519/EC, transposed by decree no. 2002-775: 5 kV/m and 100 µT at 50 Hz, and 28 to 61 V/m in radiofrequencies depending on the band. Certification frameworks value more demanding thresholds: 5 V/m and 0.4 µT, then an enhanced tier at 1.5 V/m and 0.2 µT.
No, it is not a general building requirement. It comes into play as an item of evidence within certification frameworks, notably HQE Bâtiment Durable ("electromagnetic waves" theme, formerly target 12) and NF Habitat HQE, where it is a value-adding criterion rather than an absolute prerequisite. We act as an independent third party.

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