12
Paragraph 8.4.1.3.4: Leakage
Current - Fixed Equipment
1.
Connect the LCT-601 to the EUT using
the female attachment plug cap pigtail.
2.
Connect the LCT-601 to mains power
using the male attachment plug cap
pigtail.
3.
Set the MEAS POINT Switch to the
CHASSIS MEAS POINT (left) position.
4.
Set the EARTH switch (second switch
from the top) to the EARTH-CHASSIS
OPEN (right) position.
5.
Set the NEUTRAL switch (third switch
from the top) to the NEUTRAL
CONNECTED position.
6.
Set the polarity switch (bottom switch)
to the NORMAL position.
7.
Connect a calibrated voltage meter
across the RED and GREEN LEAKAGE
banana plugs on the LCT -601. Set it to
read ~5mV for permanently connected
products.
8.
Connect a lead between the RED
LEAKAGE banana plug on the LCT-601
and exposed grounded metal on the
EUT.
9.
Regarding the power switch of the EUT,
the test is to be conducted with the EUT
power switch in both the ON and OFF
positions.
10. Read the current meter for both
conditions above. A passing result is <
5mA (<5mV on the meter connected to
the LCT-601) for permanently connected
products in the patient care facility.
11. See Figure 9 and Table 9 for a Test
Setup synopsis. This section is based
on NFPA 99 Fig. 8.4.1.3.5.5, see below.
Figure 8 Chassis Leakage Current - Fixed
Equipment
Table 8 Chassis Leakage Current - Fixed
Equipment
Jack/Switch
Position
FEMALE Cordset
To EUT
MALE Cordset
To Mains Power
RED LEAKAGE Jack
To voltage meter
and EUT chassis
GREEN LEAKAGE Jack
To voltage meter
RED RESISTANCE jack
N/C
MEAS. POINT Switch
CHASSIS
EARTH Switch
OPEN
NEUTRAL Switch
CONNECTED
POLARITY Switch
NORMAL
EUT Power Switch
TEST IN BOTH
POSITIONS
PASS Result:
<5mA
FIGURE 8.4.1.3.5.5 Test Circuit for Measuring
Chassis Leakage Current.
Summary of Contents for LCT-601
Page 1: ...LCT 601 NFPA 99 Leakage Current Tester Instruction Manual COMPLIANCE WESTUSA...
Page 3: ...ii Rev 1 1 May 20 2005...
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