Electrical Safety

HSE supports CERN Departments, projects, and experiments on electrical safety related to fixed electrical installations, electrical equipment, and the operational aspects of activities involving electrical risks.

Main activities

  • Advise on electrical safety requirements, applicable standards, and protective measures.
  • Support the definition and implementation of electrical safety measures.
  • Review technical files, specifications, procedures, and safety documentation.
  • Contribute to risk assessments, safety reviews, and incident analysis.
  • Support commissioning, testing, and operational readiness.
  • Support electrical safety aspects of specific technical domains, such as arc-flash, high-voltage test stands, photovoltaics, lightning protection, and emergency switching-off.

Support for projects and experiments

  • Support electrical safety aspects from the design stage onwards.
  • Review risks linked to installation, operation, and intervention.
  • Support non-standard or complex installations with specific safety constraints.

Documentation, awareness, and continuous improvement

  • Review and improve electrical safety procedures, forms, and guidance documents.
  • Contribute to electrical safety awareness and training activities.
  • Use feedback from the field, inspections, and incidents to improve practices.

Inspections, Compliance & Accreditation

We perform systematic electrical safety inspections to identify non-conformities and verify the implementation of safety measures in the field. This includes:

  • Inspections: Performing Initial Inspections as requested by Project Leaders and Periodic Inspections to all infrastructure at CERN.
  • Operational Readiness: Supporting EP on Electrical Inspections before Experiment start-up for Beam Permit.
  • Follow-up: Working with stakeholders to track and close out corrective actions.
    • SAILOR ELEC Resolver has been developed to facilitate follow-up of non-conformities in el. installations.
    • SAILOR ELEC Reporting has been developed to provide insight and statistics regarding non-conformities in el. installations.
  • Personnel Competence: Advising on requirements for Personnel Accreditation in collaboration with CERN Safety Training.

Practical information

Complete practical electrical safety information and awareness materials are available on the dedicated Safety Risks page.

Contact

Back to OHS Services list