GE H
EALTHCARE
D
IRECTION
5394227, 12
LOGIQ S8/LOGIQ E8 S
ERVICE
M
ANUAL
9 - 18
Section 9-8 - Electrical Safety Tests
9-8-2
GEHC Leakage Current Limits
In accordance with these standards, fault conditions like Reverse Polarity of the supply mains and Open
Neutral are no longer required for field evaluation of leakage current. Because the main source of
leakage current is the mains supply, there are different acceptance limits depending on the
configuration of the mains (100-120 or 220-240).
CAUTION
Compare all safety-test results with safety-test results of previously performed safety tests (e.g.
last year etc). In case of unexplainable abrupt changes of safety-test results consult
experienced authorized service personnel or GE for further analysis.
Table 9-11 Leakage current limits for Ultrasound system operation on 100-120 Volt mains
(US/Canada/Japan)
Leakage Current Test
System
Power
Lift Ground/
PE Conductor
Limit µA
Chassis/Enclosure Leakage
On and Off
Open
300
Type B/BF Applied Parts
On (transmit)
Closed
Open
100
500
Type CF Applied Parts
On (transmit)
Closed
Open
10
50
Type BF Applied Parts (sink leakage)
On and Off
Closed
5000
Type CF Applied Parts (sink leakage)
On and Off
Closed
50
Table 9-12 Leakage current limits for Ultrasound system operation on 220-240 Volt mains
Leakage Current Test
System
Power
Lift Ground/
PE Conductor
Limit µA
Chassis/Enclosure Leakages
On
Open and Closed
500
Type B/BF Applied Parts
On (transmit)
Open
500
Type CF Applied Parts
On (transmit)
Open
50
Type BF Applied Parts (sink leakage)
On and Off
Closed
5000
Type CF Applied Parts (sink leakage)
On and Off
Closed
50
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