04/2014
Operating Manual E4-2800/4200/5200 / M4-3000/4000/5500
Page 9
Periodic inspection according to EN 60974-4
This regulation does not lay down test intervals since this mainly depends on the degree of
utilisation and the mechanical stress (such as use on construction sites).
Test / activities
According to
EN 60974-4
Recommendation
Test interval
Depending of the degree
of utilisation, at least
annually
Cleaning
X
X
Visual inspection
X
X
Electrical test – measurement of:
- Open-circuit voltage
X
X
- Insulation resistance
X
X
- Protective conductor resistance
X
X
- Primary leakage current
- Secondary leakage current
Alternative to
insulation resistance
X
Functional test
X
Test label *
X
X
* Tests have to be documented in a test report and a test label has to be attached to the
welding equipment to indicate that it has passed the test. The label shall state the date of
testing.
