Fiber over high-voltage networks

Telsam deploys fiber optics on high-voltage infrastructure using three technical methods :

• Overhead (integration on pylons or dedicated supports)

• Underground (guided excavation, installation in conduits)

• In electrical substations (secure integration in HV/LV environments)

​

Technical resource management

1. Workforce optimization

• Management support to cover one-off or recurring needs, particularly during peak periods

• Gradual integration of resources, tailored to the technical specificities of each project

2. Mobility and operational responsiveness

• Mobile teams that can be deployed throughout France

• Dedicated logistics (equipped vehicles, deployable equipment)

• Experienced back office (25 years of sector expertise) for responsive technical support

​

Compliance and standards

• Our teams have: All the necessary certifications :

• Electricity (HV/LV)

• Safety in restricted environments

• Working at height (pylons, substations)

• Quality certifications:

• ISO 9001 (quality management)

• TL 9000 (specific to telecommunications)

• Strict compliance with EN 50110 and NFC 18-510 standards (electrical work)

​

Recognized expertise in high-voltage environments

As specialists in optical connections on HV and EHV lines, we work for major players in the energy sector :

• EDF

• Enedis

• RTE

• Arteria

• GIE

​

Specialized technical services

1. Cable laying

• Underwater: fiber optic and power cables

• Overhead: fiber optic and power cables (pylons, supports)

2. Mechanical pulling

• Winch operations (long and heavy cables)

• Management of tension and bending radius constraints

3. Technical connection

• COS cables (submarine/terrestrial optical cables) for underground connections

• Splicing and optical testing (OTDR, reflectometry)

• Commissioning and performance validation (attenuation, reflectance)

​​​​