GE H
EALTHCARE
D
IRECTION
GA091568, R
EVISION
5
VIVID E9 S
ERVICE
M
ANUAL
Chapter 10 - Care & maintenance
10 - 27
10-6-6-2
Generic Procedure
Measurements should be made under the test conditions specified in:
•
,
or:
•
,
as applicable.
For each combination, the operating controls such as the lead switch should be operated to find the
worst case condition.
.
Figure 10-5 Test Circuit for Measuring Patient Lead Leakage
POWER
OUTLET
H (Black)
N (White)
G (Green)
Internal
circuitry
Insulating surface
Polarity reversing switch.
Appliance power switch
(use both “off” and “on” positions)
Patient connected leads
The connection is at service entrance
or on the supply side of a separately
derived system
Building
ground
Grounding contact switch (use in both
“open” and “closed” positions)
Current meter
H = Hot
N = Neutral (grounded)
G = Grounding conductor
H
N
G
Patient lead selector switch (if any)
(activated as required)
Appliance
Between each patient
lead and ground
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