Mindray uMEC10, Operator'S Manual

Page: 278 / 288

E-4
E.6 Patient Leakage Current
Patient leakage currents are measured between a selected applied part and mains earth. All
measurements have a true RMS only
The following outlet conditions apply when performing the Patient Leakage Current test.
„
normal polarity (Normal Condition)
„
reverse polarity (Normal Condition),
„
normal polarity with open neutral (Single Fault Condition)
„
reverse polarity with open neutral (Single Fault Condition)
„
normal polarity with open earth (Single Fault Condition)
„
reverse polarity with open earth (Single Fault Condition)
LIMITS
For CF applied parts
‹
10 A in Normal Condition
‹
50 A in Single Fault Condition
For BF applied parts
‹
100 A in Normal Condition
‹
500 A in Single Fault Condition
E.7 Mains on Applied Part Leakage
The Mains on Applied Part test applies a test voltage, which is 110% of the mains voltage,
through a limiting resistance, to selected applied part terminals. Current measurements are
then taken between the selected applied part and earth. Measurements are taken with the
test voltage (110% of mains) to applied parts in the normal and reverse polarity conditions
The following outlet conditions apply when performing the Mains on Applied Part test.
„
Normal Polarity
„
Reversed Polarity
LIMITS
„
For CF applied parts: 50 A
„
For BF applied parts: 5000 A