Blog & Expert Knowledge

Whether you manage a workshop, work as an OEM engineer, or oversee fleet compliance – working safely with high-voltage systems demands more than intuition. In this blog, certified HV instructors break down what actually matters on the shop floor: Which qualification level does my team need? What does DGUV Information 209-093 require in practice? How do I document training in a way that holds up to inspection?

We publish expert articles on the five safety rules in high-voltage work, on the qualification levels from S/E through to 3S and 3E, on legal requirements for electric and hybrid vehicles, and on typical errors seen in workshops across Germany. You'll also find practical guidance for fleet managers, checklists, and explanations of VDE standards and DGUV Principle 303-001.

New here? Start with our article series "Avoidable Mistakes When Working with Electric Vehicles" – a practical introduction to the most common risks and how to avoid them systematically.