B. Braun Dialog+ - 5.1.1 Measurement Circuits for Measurement of Electrical Safety According to IEC 62353;60601-1

5. Technical Safety Inspection and Preventive Maintenance 1/2010 5 - 7
BA-TE-DE08C M.KAY Dialog+ SW9xx_SM_Chapter 5-1_1-2010.doc/pdf <110301> yymmdd B. Braun Avitum AG
Dialog
+
SW 9.xx
5.1.1 Measurement Circuits for Measurement of Electrical
Safety According to IEC 62353/60601-1
Protective earth (ground)
L, N
Supply mains terminals
PE
Protective earth terminal
MP
Mains part
A
P
Applied part
MD
Measuring device
M
Residual current meter with frequency
response as MD
Resistance measurement equipment
Part of enclosure not protectively earthed Connection to accessible conductive parts
Table 1: Legend of Abbreviations and Symbols
L
N
PE
MP
AP
Fig. 1: Protective Earth Resistance
Protective Earth Resistance
Test current: ≥ 200 mA
The test current must be measured in both
directions.
MP
A
P
M
L
L(N)
N(L)
N
PE
Fig. 2: Equipment Leakage Current
Equipment Leakage Current:
• Differential Measurement
MP
A
P
MD
L
N
PE
Fig. 3: Patient Leakage Current
Patient Leakage Current