Compliance West LCT-601, Instruction Manual

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13
Paragraph 8.4.1.3.5: Leakage
Current - Portable 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 ~300mV for portable 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 <
300uA (<300uV on the meter connected
to the LCT-601) for cord connected
products. Higher leakage currents are
allowed under special conditions; see
NFPA 99 Para. 8.4.1.3.5.2 for further
details.
11. See Figure 10 and Table 10 for a Test
Setup synopsis. This section is based
on NFPA 99 Fig. 8.4.1.3.5.5, see below.
Figure 9 Chassis Leakage Current - Fixed
Equipment
Table 9 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: <300uA or see Para.
8.4.1.3.5.2
FIGURE 8.4.1.3.5.5 Test Circuit for Measuring
Chassis Leakage Current.