Benning ST 755+ - Manual Test Procedures According to en 60974-4 (VDE 0544-4); Table 42 Manual Test Procedures According to en 62353 (VDE 0751-1)

Appendix
13.2 Manual test procedures
5284 / 08/2023 en BENNING ST 755+ / ST 760+ 109
Test ClassI ClassII
Device leakage
current:
Alternative leakage
current measuring
method
Direct/ differential
current measuring
method
TypeB
≤1 000µ
A
≤500µA
TypeBF
≤1 000µ
A
≤500µA
TypeCF
≤1 000µA
≤500µA
TypeB
≤500µA
≤100µA
TypeBF
≤500µA
≤100µA
TypeCF
≤500µA
≤100µA
Patient leakage
current:
Alternative leakage
current measuring
method (AC)
Direct current
measuring method
(AC)
-
-
≤5 000µ
A
≤5 000µ
A
≤50µA
≤50µA
-
-
≤5 000µA
≤5 000µA
≤50µA
≤50µA
Functional test Functioning of safety equipment and functional test
Analysis, evaluation,
documentation
(Inspection and preparation for intended use)
Table42: Manual test procedures according to EN62353 (VDE0751-1)
13.2.3 Manual test procedures according to EN60974-4
(VDE0544‑4)
Test ClassI ClassII
Visual inspection for
visible defects:
• Torch/ electrode
holder
• Mains supply
• Welding circuit
• Housing etc.
X X
Testing the protective
conductor with regard to:
Continuity between the
earthing contact of the
mains plug and
accessible conductive
parts of the device/ the
device connection
For cables with a rated current of
≤16.0A:
For cables up to 5m: ≤0.3Ω
For additional meters (up to
7.5m each), 0.1Ω is added to
the limit up to a maximum value
of 1.0Ω.
For cables with higher rated
currents, the calculated ohmic
resistance value shall apply.
-
Measuring the insulating
resistance
Mains circuit to welding circuit:
≥5.0MΩ
Welding circuit to protective
conductor circuit: ≥2.5MΩ
Mains circuit to protective
conductor circuit: ≥2.5MΩ
Mains circuit to welding circuit:
≥5.0MΩ
Mains circuit to accessible
surfaces: ≥5.0MΩ