Compliance West LCT-601, Инструкция по эксплуатации

Страница: 19 / 26

14
Paragraph 8.4.1.3.6.1: Portable
Equipment Lead to Ground –
Nonisolated Input Test
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. Regarding the EARTH switch (second
switch from the top); the test is to be
conducted with the EARTH switch in
both positions.
5. Set the NEUTRAL switch (third switch
from the top) to the NEUTRAL
CONNECTED position.
6. Set the POLARITY switch to the
NORMAL position.
7. Set the power switch of the EUT to the
ON position.
8. Connect a calibrated voltage meter
across the RED and GREEN LEAKAGE
banana plugs on the LCT -601. Set it to
read ~100uV.
9. Connect all patient-connected leads
together, connect them to the RED
LEAKAGE banana plug of the LCT-601
and conduct measurements for both test
conditions. For this test, switch the
EUT to the output condition that results
in the highest leakage output.
10. Read the current meter for both
conditions noted above. A passing
result is <100uA (<100uV on the meter
connected to the LCT-601) for any
condition.
11. See Figure 11 and Table 11 for a Test
Setup synopsis. This section is based
on NFPA 99 Fig. 8.4.1.3.6.1, see below.
Figure 10 Nonisolated Lead Leakage Test
Table 10 Nonisolated Lead Leakage Test
Jack/Switch Position
FEMALE Cordset To EUT
MALE Cordset To Mains Power
RED LEAKAGE Jack To voltage meter
and all nonisolated
patient connections
on the EUT
connected together
GREEN LEAKAGE Jack To voltage meter
RED RESISTANCE jack N/C
MEAS. POINT Switch CHASSIS
EARTH Switch TEST IN BOTH
POSITIONS
NEUTRAL Switch CONNECTED
POLARITY Switch NORMAL
EUT Power Switch ON
PASS Result: <100uA
FIGURE 8.4.1.3.6.1 Test Circuit for Measuring
Leakage Current Between Patient Leads and
Ground — Nonisolated.