maintenance and safety inspections
file: n:\article\cos14310m5-v1_07hpc-en\20130207_cos14310m5-v1.07hpc-en_h-p-cosmos_treadmill_manual.doc
© 2013 h/p/cosmos sports & medical gmbh author: fh email@h-p-cosmos.com created 07.02.2013 printed 04.03.2013 page: 110 of 197
8.3.2
Protective earth resistance (R
PE
) measurement
N
Resistance between housing and protective earth
connection.
N
The low resistance pass is to be controlled according to
VDE 0701/0702 (sports and fitness machines) or VDE
0751/IEC 60601-1 (medical devices) by the protective
resistance measurement with a measuring device for the
protective earth resistance measurement.
N
The connecting lead is to be moved while measuring for
at least 5 sec. If the resistance thus changes, it is highly
probable that the cable or the connectors have been
damaged. In this case the cable should be replaced and
the device repaired immediately.
8.3.3
Isolation resistance (R
ISO
) measurement
N
Resistance between „bridged“ L+N and Protective Earth-
Connection.
N
Make sure that all isolations that are under stress of the
mains voltage, are considered. All switches and
contactors should be connected.
N
The measurement is to be performed with measuring
devices for the isolation resistance measurement
according to VDE 0701/0702 (sports and fitness
machines) or VDE 0751/IEC 60601-1 (medical devices).
8.3.4
Equivalent (alternative) leakage current (I
EDL
) measurement
N
Impedance measurement, indicating the current in the
protective earth cable
N
The measurement is to be performed by a measuring
device for leakage current measuring according to VDE
0701/0702 (sports and fitness machines) or VDE
0751/IEC 60601-1 (medical devices).
N
The measurement is equivalent to the single fault earth
leakage current based on IEC 60601.
