GE LOGIQ S7 Expert, Техническая публикация

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Electrical safety tests
Ultrasound System
–
Common Service Information
4-21
Direction 5444964-100 English Rev. 5
LOGIQ/Vivid/Voluson Ultrasound System Leakage Current Limits
(continued)
*ISO and Mains Applied refers to the sink leakage test where
mains (supply) voltage is applied to the applied part to
determine the amount of current that will pass (or sink) to ground
if a patient is in contact with mains voltage.
Table 4-7: Leakage current limits for Ultrasound system operation on 220-240 Volt
mains
Leakage Current Test
System
Power
Grounding/
PE Conductor
Limit in
mA
Limit in
µA
Earth Leakage On and Off N/A 0.5 500
Chassis/Enclosure Leakage On and Off Closed
Open 0.1
0.5 100
500
Type BF Applied Parts On (transmit) Closed
Open 0.1
0.5 100
500
Type CF Applied Parts On (transmit) Closed
Open 0.01
0.05 10
50
Type BF Applied Parts (sink
leakage, mains voltage on
applied part) On and Off Closed 5 5000
Type CF Applied Parts (sink
leakage, mains voltage on
applied part) On and Off Closed 0.05 50
Values based on IEC60601
Table 4-8: ISO and Mains Applied Limits*
Probe Type Measurement
BF 5.0 mA (5000 µA)
CF 0.05 mA (50 µA)