5.BENNING BENNING 750 A
8.7 Proving safe isolation (SELV, PELV)3
For devices generating SELV PELV voltage means isolating
transformer switch-mode power supply
Proving the rated voltage: (compliance with specifications (SELV/PELV))
- Output voltage measurement (e.1 0
maximum: 1.1* Scope testing: The figures stated refer DIN VDE 0701-0702:2008-06.10 Functional test Functioning safety equipment and function test
Analysis, evaluation, documentation
A Additional notes concerning the table "Tests according DIN VDE 0701-0702":
1 for devices containing heating elements with power 3.5 mA
at conductible components without protective conductor connection
< 0.
08/ 2012 58
.2 Visual inspection
Check for visible defects and suitability regarding the field application:
- connecting cables plug-and-socket connections
- housing, strain relief, protection against bending and kinking .8 5.0 0
For cables with higher rated currents, the calculated ohmic resistance
value shall apply
5.5 kW
> 0. rview Tests acco DIN 0701 -0702:2 008-06
Q
Protection class I
(with protective conductor)
- extension cables and connecting cables
- electrical equipment, e.g. 25V 60V for accessible active parts
- Insulating resistance measurement (primary secondary)
- Insulating resistance measurement (between accessible conductive parts and active parts ofthe SELV PELC circuit)
5. for devices containing heating elements
with total power more than 3.5 additionally: 0.
5.6 Measuring the contact current3 0.3 0
for each further 7..3 Testing the protective conductor
Continuity between the earthing contact the mains plug and acces
sible conductive parts ofthe device ofthe device connection
For cables with rated current 16A
up 0.4 Measuring the insulating resistance3 M0
> for proving safe isolation
> 0. electrical hand tools
Protection class III
5.5 mA4
at conductible components with protective conductor connection
1 mA/ max.5 Measuring the protective conductor current2,3 3.. electrical hand tools
m
Protection class II
(without protective conductor)
- device connecting cables
- electrical equipment, e.5kW
5.3 for devices with heating elements1with power 3.g. for chargers, mains supply units): max.25 MO
5.5 mA
at conductive components
5.g.5 the value falls below the limiting value, the device still shall considered proper condition long the limiting value for
the protective conductor current not exceeded
