a blog entry by Philipp Janczewski

June 23, 2021
3 minutes read

The ZF high voltage experts

Qualifying as a ZF high voltage expert

Qualifying as a ZF high voltage expert is not a difficult path – as long as you have the motivation, willpower and desire to establish your workshop as an expert for hybrid and electric vehicles.

Your qualification pathway depends on your existing training. The flowchart from the DGUV Information 209-093 of the professional association shows you your recommended learning needs. For example, a person with previous knowledge of electrical engineering in the automotive sector must complete 48 teaching units in order to achieve the level 2 qualification.

What needs to be considered? The important documents and levels

DGUV Info 209-093

The DGUV Info 209-093 is a great document for employers and supervisors, because you can see exactly which qualification requirements are necessary for specific work on high voltage vehicles. However, you must bear in mind that this is not a regulation or law – rather, it is designed to help you as an employer make the risk assessment of high voltage vehicles easier and to ensure the safest possible working environment for your employees.

Now let's take a closer look at the different qualification levels – there are three altogether:

  • Level 1: Electrotechnical/expertly instructed person
  • Level 2: Qualified for work in research and development and on non high voltage intrinsically safe production vehicles and prototypes
  • Level 3: Qualified for work on live high voltage components

What the levels mean and what concrete activities you can do with them can best be seen in the following table:

Level 1
Level 2
Level 3
Non-electrotechnical tasks Eletrotechnical tasks on stress-free high voltage systems Work on live high voltage components
  • General maintenance and repair work
  • Certified unlocking
  • Repair work on the live high voltage system
  • Working on the low voltage vehicle electrical system
  • Repair work on the stress-free high voltage system
  • Troubleshooting the live high voltage system
  • Specified work on high voltage systems
  • Troubleshooting the voltage-free high voltage system
  • Test drives
  • Removal and installation of (high voltage) components
  • Certified commissioning

By the way:

Here at ZF were are defining Level 2, a person "qualified for work in research and development and on non high voltage intrinsically safe production vehicles and prototypes" as ZF high voltage expert. The final step would then be ZF high voltage expert Level 3.

My tip for employers or mechanics – if you intend to maintain, service or provide hybrid, electric or fuel cell vehicles as rental cars, you definitely need training!

A practical example

About the author

Phillip Janczewski

Philipp Janczewski

Philipp is Global Head of Training Development, working with ZF Aftermarket since 2013. His motto as #zfexpert:

“You can never have too many horses! No matter in which engine.”