Device Information; Individual Tests; Protective Conductor Resistance - Benning ST 755+ Operating Manual

7.6

Device information

In the "Information" menu, you can find all current device data as well as contact data of the
Technical support [} page 12].
• Device
• Item number
• Serial number
• Firmware version
• GUI version
• Storage battery voltage/current
• Storage battery capacity
• Kernel version
• Technical support
– Phone number
– Fax number
– E-mail
– Website
7.7

Individual tests

7.7.1

Protective conductor resistance

Class I
X
Test samples with protective conductor must have a proper and safe connection to all
accessible conductive parts that are connected to the protective connector and can be live in
the event of a fault [} page 79].
The protective conductor resistance is composed of the following values:
• The resistance value between the connection point of the test sample up to all accessible
conductive parts of the test sample that are connected to the protective conductor,
• The transition resistances of all terminal and plug connections,
• the resistances of all connected extension and device connecting cables.
To determine the protective conductor resistance, you can select various testing currents.
• Testing current: 0.6 A‑AC or 10 A‑AC
• Test frequency: 50 Hz
When exceeding the limit [} page 111], it has to be checked whether other limits have to be
observed due to product standards or manufacturer specifications.
42
EN 50678 (VDE 0701)
EN 50699 (VDE 0702)
Class II Class III
-
BENNING ST 755+ / ST 760+
EN 62353
(VDE 0751‑1)
Class I Class II
- X
7.6 Device information
EN 60974-4
(VDE 0544‑4)
Class I
- X
5284 / 08/2023 en
Functions
Class II
-