GE LOGIQ P3 PRO, Руководство по обслуживанию

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GE PROPRIETARY TO GE
D
IRECTION
5308917-100, R
EVISION
8 LOGIQ P3 S
ERVICE
M
ANUAL
10-20 Section 10-7 - Electrical Safety Tests
10-7-6-2 Generic Procedure
Measurements should be made with the ground open and closed, with power line polarity normal and
reversed, and with the unit Off and On. For each combination, the operating controls such as the lead
switch should be operated to find the worst case condition.
10-7-7 Isolated Patient Lead (Source) Leakage–Lead to Lead
Reference the procedure in the IEC 60601-1.
Isolated Patient Lead (Sink) Leakage-Isolation Test
Reference the procedure in the IEC 60601-1.
NOTE: It is not necessary to test each lead individually or power condition combinations as required in
previous tests.
Figure 10-4 Test Circuit for Measuring Non-Isolated Patient Leads
CAUTION
Line voltage is applied to the ECG leads during this test. To avoid possible electric shock
hazard, the system being tested must not be touched by patients, users or anyone while the ISO
TEST switch is depressed.
POWER
OUTLET
H (Black)
N (White)
G (Green)
Internal
circuitry
Insulating surface
Polarity reversing switch
(use both positions)
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