Prof. Dr. Thorsten Jungmann (last updated 2025-08-15)
Relates to EE1-01 Introduction
Question
Which rules apply when you work with electricity?
Solution
The five safety rules according to VDE apply, together with supplementary laboratory safety rules.
Five safety rules (VDE 0105-100)
- Disconnect from mains!
- Secure against reconnection!
- Verify that the installation is dead!
- Carry out earthing and short-circuiting! *
- Provide protection from adjacent live parts! *
*) Not strictly required for voltages below 48 V (protective extra-low voltage):
Supplementary laboratory safety rules
- Wear personal protective equipment (PPE)
- Use only tested, suitable tools
- Take measurements on live parts only when necessary
- Keep safety distances
- Operate devices only in technically perfect condition
- Work only under the supervision of a qualified electrician
- Keep your workplace tidy and clean
- Know what to do in an emergency
- Report accidents and near misses immediately